Denture base material package and method for manufacturing denture

Abstract

The present invention provides a denture base material package and a denture manufacturing method using the same, which ensure a certain quality or higher and improve work efficiency, regardless of the proficiency of a worker or the like, when a denture is manufactured by using a denture manufacturing method using a reference denture; the denture base material package (10) includes: a rope-shaped formed body (11) formed by shaping a light-hardening denture base material having plastic deformability into a rope shape, and a light-blocking member (15) having an internal space that retains airtightness and in which the rope-shaped formed body (11) is housed, a cross-sectional area of a cross section of the rope-shaped formed body (11) orthogonal to a length direction is 20 mm 2 ~ 65 mm 2 , and the light-blocking member (15) includes: (i) a tray (150) having a groove (151) for housing the rope-shaped formed body (11); and (ii) at least one member selected from the group consisting of a bag body (12) that houses the tray (150) therein and a cover material (14) that closes an opening of the groove (151).

Description

Technical Field

[0001] This invention relates to a material packaging body for denture bases and a method for manufacturing dentures. Background Technology

[0002] With the rapid aging of the population in recent years, the demand for dentures has increased. Here, dentures (dentures with a base) refer to easily attachable and detachable restorations used to restore oral functions such as chewing when natural teeth and surrounding tissues such as gums and alveolar bone are lost, and to prevent changes in facial structure and obstacles caused by tooth loss or loss of surrounding tissues. In dentures, the component that repairs the missing (natural) teeth is the artificial tooth, and the component that repairs the lost surrounding tissues is the denture base. In this denture base, the surface that adheres to the alveolar ridge mucosa (the surface that is not ground in denture manufacturing from an adaptive point of view) is generally called the mucosal surface (or base surface), and the surface on the opposite side that can contact at least one of the buccal mucosa and tongue (the surface that is ground in denture manufacturing) is generally called the "ground surface," and the portion that forms the boundary between the two is called the base edge. Furthermore, the portion of the denture base that corresponds to the gum line and the boundary between the artificial tooth is called the "cervical region," and the wing-shaped portion with the base edge as its front end is called the wing flange. Further, the portion of the denture base that holds the artificial tooth is called the alveolar region.

[0003] Typically, dentures are manufactured by hand, one by one, with meticulous adjustments based on the patient's oral cavity shape. To reduce the labor involved in this manual process, a technique using reference dentures is known (see Patent Documents 1-3). Here, a reference denture is a "ready-made" denture-like component used to simplify denture manufacturing. It consists of a reference denture base and artificial teeth fixedly held thereon. This reference denture is configured such that, when installed in the mouth of an individual patient or a model thereof, a space (hereinafter referred to as the "reference denture non-jointing space") is formed between the mucosal surface of the reference denture base and the oral mucosa of the individual patient. Furthermore, by filling this space with a hardened denture base material such as a lining material, a denture suitable for the individual patient can be manufactured. Additionally, "ready-made" here means that the reference denture is commercially available as a component product. Moreover, ready-made reference dentures, composed of denture-like components, generally do not require many modifications for tooth alignment, and in most cases, consist of multiple components differing only in relative size. For example, in most cases, reference dentures of several standard sizes, such as S, M, and L, are provided. Additionally, in most cases, the reference denture used is a complete denture that fixes the entire dentition.

[0004] It is also known to use such a reference denture to efficiently manufacture dentures with high fit for individual patients. For example, Patent Document 4 discloses a method for manufacturing a denture, which has the following features.

[0005] The method for manufacturing this denture includes:

[0006] (A) The preparation process for the reference denture, which prepares the reference denture to become a reference denture component, the reference denture component having a reference denture base component and artificial teeth.

[0007] (B) The reference denture determination process involves placing the reference denture at an appropriate position on a virtual occlusal plane, which is imagined to be positioned within the patient's oral cavity at a medically appropriate location. This is achieved by (1) inserting the reference denture into the patient's oral cavity and confirming the contact state between the reference denture and the patient's oral mucosa, or (2) inserting it into an occlusal appliance with a model of the patient's oral cavity attached and confirming the contact state between the model and the reference denture. If inappropriate contact exists, a reference denture with a different shape that will not cause such inappropriate contact is selected, or the shape of the reference denture base component in the reference denture is slightly adjusted to prevent contact. This determines the shape of the reference denture to be used.

[0008] (C) The stacking and copying process involves stacking the uncured hardened denture base material, used to form the adjusting component, onto the mucosal surface of the reference denture base component in the reference denture determined in the reference denture determination process. Then, the reference denture with the stacked hardened denture base material is positioned at an appropriate location on the virtual occlusal plane within the patient's oral cavity or the occlusal appliance. The shape of the patient's oral mucosa or the shape of the patient's oral cavity model is copied onto the hardened denture base material, and edge forming is performed to remove any remaining hardened denture base material.

[0009] (D) Hardening process, which hardens the hardened denture base material after the stacking and replication processes;

[0010] The stacking and replication process (C) includes:

[0011] (C1) Central stacking and copying process, which stacks uncured hardened denture base material in the central region of the base of the reference denture base component, and copies the shape of the patient's oral cavity or the model of the patient's oral cavity; (C2) Anterior stacking and copying process, which stacks uncured hardened denture base material in the anterior region of the base of the reference denture base component, and copies the shape of the patient's oral cavity or the model of the patient's oral cavity, and performs edge formation by extending from the edge of the base; and (C3) Posterior stacking and copying process, which stacks uncured hardened denture base material in the posterior region of the base of the reference denture base component, and copies the shape of the patient's oral cavity or the model of the patient's oral cavity, and performs edge formation by extending from the edge of the base;

[0012] After the central stacking and replication process, the front stacking and replication process and the rear stacking and replication process can be performed simultaneously or individually.

[0013] [Existing Technical Documents]

[0014] [Patent Documents]

[0015] Patent Document 1: Japanese Patent No. 3449733

[0016] Patent Document 2: Japanese Patent No. 6294706

[0017] Patent Document 3: International Publication, Published No. 2018 / 207867

[0018] Patent Document 4: International Publication, Published No. 2020 / 195623 Summary of the Invention

[0019] (The problem that the invention aims to solve)

[0020] According to the denture manufacturing method disclosed in Patent Document 4, compared with the conventional order-made denture manufacturing method, it is possible to manufacture dentures that fit individual patients very efficiently. However, the inventors of this application have found that when using the above manufacturing method to manufacture dentures, in the stacking and replication process described above (C), if the denture manufacturing personnel (dentists, dental technicians) are inexperienced, the work efficiency or quality is likely to be reduced compared with skilled denture manufacturing personnel.

[0021] The present invention was made in view of the above circumstances, and its object is to provide a denture base material packaging body that ensures a certain quality and improves work efficiency when manufacturing dentures using a denture manufacturing method that uses a reference denture as illustrated in Patent Document 4, etc., regardless of the skill level of the operator, and a denture manufacturing method using the packaging body.

[0022] (A solution to the problem)

[0023] The aforementioned problem is achieved through the following invention. That is,

[0024] The denture base material packaging body (hereinafter sometimes simply referred to as "packaging body") of the present invention has the following characteristics.

[0025] The denture base material packaging body comprises: a rope-shaped body formed by shaping a light-cured denture base material with plastic deformability into a rope shape; and a light-shielding component having an airtight internal space and housing the rope-shaped body within the internal space; the light-shielding component comprises: (i) a tray having a groove for housing the rope-shaped body; and (ii) at least one component selected from the group consisting of a bag body that houses the tray therein and a cover material that closes the opening of the groove.

[0026] In one embodiment of the dental prosthesis base material packaging body of the present invention, preferably, the cross-sectional area of ​​the rope-shaped body is 20 mm². 2 ~65mm 2 Within the range.

[0027] In another embodiment of the material packaging body for denture base of the present invention, it is preferred that the cross-sectional shape of the rope-shaped body orthogonal to the length direction is semi-circular or crescent-shaped.

[0028] In another embodiment of the material packaging body for denture base of the present invention, it is preferred that the planar shape of the rope-shaped body defined by the groove is linear or annular.

[0029] In another embodiment of the denture base material packaging body of the present invention, it is preferred that, when the denture is manufactured using the rope-shaped forming body and the reference denture, the planar shape of the rope-shaped forming body, defined by the groove, is a shape corresponding to at least a portion of the planar shape of the base edge of the reference denture, wherein the reference denture has: (i) a mucosal surface, which is a surface opposite to the alveolar ridge mucosa; (ii) an abrasive surface, which is a surface capable of contacting at least one of the buccal mucosa and the tongue; and (iii) the base edge, which forms the boundary between the mucosal surface and the abrasive surface.

[0030] In another embodiment of the material packaging body for denture base of the present invention, it is preferable that the planar shape of the rope-shaped body defined by the groove is an annular shape corresponding to the planar shape of the edge of the base of the reference denture.

[0031] In another embodiment of the denture base material packaging body of the present invention, preferably: the reference denture includes a maxillary reference denture, in which (1) when the length of the line segment PQ connecting the point P on the throat side of the denture base corresponding to the left pterygomaxillary notch and the point Q on the throat side of the denture base corresponding to the right pterygomaxillary notch is set to 1, the length of the line segment OM connecting the point O on the labial side of the denture base corresponding to the upper lip frenulum and the midpoint M of the line segment PQ is 0.76 to 0.98, (2) further, when the length of the line segment O connecting the point O and the point P is set to 1, the length of the line segment OM ... Point P is divided into four equal parts, designated as P1, P2, and P3 starting from point O. The points where the perpendicular lines from points P1, P2, and P3 on line segment OP intersect the edge of the baseboard on the left cheek side are designated as D1, D2, and D3, respectively. Similarly, line segment OQ connecting point O and point Q is divided into four equal parts, designated as Q1, Q2, and Q3 starting from point O. The points where the perpendicular lines from points Q1, Q2, and Q3 on line segment OQ intersect the edge of the baseboard on the right cheek side are designated as E1, E2, and E3, respectively.

[0032] The lengths of line segments P1D1 and Q1E1 are 0.11 to 0.36 respectively.

[0033] The lengths of line segments P2D2 and Q2E2 are 0.19 and 0.45 respectively.

[0034] The lengths of line segments P3D3 and Q3E3 are 0.16 to 0.45 respectively.

[0035] In another embodiment of the denture base material packaging body of the present invention, preferably: the reference denture includes a mandibular reference denture, wherein...

[0036] (1) When the length of line segment pq, which connects point p on the larynx side of the denture base corresponding to the left retromolar pad and point q on the larynx side of the denture base corresponding to the right retromolar pad, is set to 1, the length of line segment om, which connects point o on the labial side of the denture base corresponding to the lower lip frenulum and the midpoint m of line segment pq, is 0.74 to 0.94.

[0037] (2) Further, when the line segment op connecting point o and point p is divided into four equal parts, with points p1, p2, and p3 starting from the side of point o, and the points where the vertical lines from points p1, p2, and p3 on the line segment op intersect the edge of the base on the left cheek side are respectively designated as points d1, d2, and d3; and the line segment oq connecting point o and point q is divided into four equal parts, with points q1, q2, and q3 starting from the side of point o, and the points where the vertical lines from points q1, q2, and q3 on the line segment oq intersect the edge of the base on the right cheek side are respectively designated as points e1, e2, and e3,

[0038] The lengths of line segments p1d1 and q1e1 are 0.11 to 0.32 respectively.

[0039] The lengths of line segments p2d2 and q2e2 are 0.13 and 0.34 respectively.

[0040] The lengths of line segments p3d3 and q3e3 are 0.14 and 0.33 respectively.

[0041] (3) Further, when the points where the vertical lines starting from points p1, p2, and p3 on the line segment op intersect the edge of the base on the throat side are respectively designated as points b1, b2, and b3, and the points where the vertical lines starting from points q1, q2, and q3 on the line segment oq intersect the edge of the base on the throat side are respectively designated as points c1, c2, and c3,

[0042] The lengths of line segments d1b1 and e1c1 are 0.14 and 0.40 respectively.

[0043] The lengths of line segments d2b2 and e2c2 are 0.19 and 0.41 respectively.

[0044] The lengths of line segments d3b3 and e3c3 are 0.21 to 0.42, respectively.

[0045] The method for manufacturing dentures according to the present invention has the following characteristics.

[0046] The manufacturing method of this denture includes: a stacking and replication process, and a hardening process.

[0047] In the stacking and replication process, (A) a light-cured denture base material with plastic deformability is stacked in a stacking target area selected from at least a portion of the base edge and at least a portion of the mucosal surface of a reference denture, wherein the reference denture has: (i) the mucosal surface as a surface opposite to the alveolar ridge mucosa, (ii) an abrasive surface as a surface capable of contacting at least one of the buccal mucosa and the tongue, and (iii) the base edge forming the boundary between the mucosal surface and the abrasive surface. Then,

[0048] (B 1) After placing the reference denture, on which the light-cured denture base material is deposited, in the appropriate position within the patient's oral cavity, the mucosal shape within the patient's oral cavity is replicated to the light-cured denture base material, and edge formation is performed to remove the remaining light-cured denture base material; or,

[0049] (B2) After placing the reference denture, on which the light-cured denture base material is deposited, at an appropriate position on the virtual occlusal plane within the occlusal appliance containing the patient's intraoral model, the shape of the patient's intraoral model is copied to the light-cured denture base material, and edge forming is performed to remove the remaining light-cured denture base material.

[0050] The hardening process is performed after the stacking and replication processes, which hardens the light-curing denture base material.

[0051] When the light-curing denture base material is stacked on the stacking target area, the rope-shaped body taken out from the denture base material package of the present invention is used as the light-curing denture base material.

[0052] In one embodiment of the method for manufacturing dentures according to the present invention, it is preferable that, when the light-cured denture base material is deposited in a region including at least a portion of the base edge, the planar shape of the rope-shaped body defined by the groove is a shape corresponding to the planar shape of at least a portion of the base edge.

[0053] (Invention Effects)

[0054] According to the present invention, a denture base material packaging body and a denture manufacturing method using the packaging body are provided, which improve work efficiency when manufacturing dentures using a denture manufacturing method of a reference denture illustrated in Patent Document 4, etc., regardless of the skill level of the operator. Attached Figure Description

[0055] Figure 1This is an explanatory diagram showing the lengths of each part of the preferred planar shape of the maxillary and mandibular reference dentures disclosed in Patent Document 4. Figure 1 Image (a) shows the shape of the reference denture for the maxilla from a top view, which corresponds to Figure 12 of Patent Document 4. Figure 1 (b) shows the shape of the reference denture for the mandible from a top view, which corresponds to Figure 13 of Patent Document 4.

[0056] Figure 2 Is using Figure 1 The maxillary and mandibular reference dentures shown are cross-sectional views of complete dentures manufactured using the method disclosed in Patent Document 4, which are equivalent to those in Patent Document 4. Figure 1 Here, Figure 2 (a) shows a vertical cross-sectional view of approximately the central portion of the canine in a maxillary denture. Figure 2 (b) shows a vertical cross-sectional view of the approximate central portion of the canine of a mandibular prosthesis.

[0057] Figure 3 This is a schematic diagram of a packaging body according to one embodiment of the packaging body of the present invention, which houses an annular rope-shaped body corresponding to the planar shape of the base edge of the maxillary reference denture disclosed in Patent Document 4. Here, Figure 3 (a) is a top perspective view of the packaging. Figure 3 (b) represents Figure 3 The symbol Z shown in (a) A -Z A Cross-sectional view of the structure between the two sections.

[0058] Figure 4 This is a schematic diagram of a packaging body according to one embodiment of the packaging body of the present invention, which houses an annular rope-shaped body corresponding to the planar shape of the base edge of the mandibular reference denture disclosed in Patent Document 4. Here, Figure 4 (a) is a top perspective view of the packaging. Figure 4 (b) represents Figure 4 The symbol Z shown in (a) B -Z B A cross-sectional view of the structure between the two sections.

[0059] Figure 5 This is a schematic diagram of a packaging body according to one embodiment of the packaging body of the present invention, which houses a linear (or rod-shaped) rope-like molded body corresponding to the planar shape of the base edge of the maxillary reference denture disclosed in Patent Document 4. Here, Figure 5 (a) is a top perspective view of the packaging. Figure 5 (b) represents Figure 5 The symbol Z shown in (a) C -ZC A cross-sectional view of the structure between the two sections. Detailed Implementation

[0060] In order to find a solution to the above-mentioned problem, the inventors of this application investigated the reasons why the following situation occurs: when performing the (C) stacking and copying process in the denture manufacturing method disclosed in Patent Document 4, the efficiency or quality of work is easily reduced when performed by inexperienced operators compared to skilled operators.

[0061] First, in the (C) stacking and replication process, from an operational point of view, it is preferable to stack (unhardened) hardened denture base material in the stacking and replication area (stacking and replication area) with an amount slightly larger than the volume of the non-jointing space of the reference denture. Here, the hardened denture base material can be a chemically polymerized block material prepared by mixing powder and liquid during use, or a pre-packaged photopolymerized block material. Furthermore, to minimize waste of the hardened denture base material, it is necessary to repeatedly scrape away the hardened denture base material accumulated in the stacking and replication area little by little using a scraper or spatula, thereby adjusting the shape of the hardened denture base material. In this case, it is easy to have problems with excessive or insufficient stacking in certain areas. Additionally, if the stacking amount is too small each time, multiple stacking processes are required, thus creating gaps at the interfaces between the layers, or easily causing localized peeling. For this reason, it can be argued that, compared to skilled operators, inexperienced operators are more likely to experience reduced work efficiency or quality when performing the (C) stacking and copying processes, especially the (C2) and / or (C3) stacking and copying processes which require fine forming operations. Furthermore, it can be argued that these problems also apply to the stacking and copying processes performed in denture manufacturing methods other than those disclosed in Patent Document 4.

[0062] Therefore, based on the above insights, the inventors of this application believed that satisfying the following conditions (i) and (ii) was effective in solving the above problems, and then invented the packaging body of the embodiment described below.

[0063] (i) As a material for hardened denture bases, a light-hardened denture base material is used.

[0064] (ii) Provide the operator with a light-cured denture base material shaped like a rope, so that the operator can deposit a certain amount of the light-cured denture base material into the stacking and replication area.

[0065] In the stacking and replication process (C), if a light-cured denture base material shaped into a rope (rope-shaped form) is used, anyone can accurately control the amount of light-cured denture base material used in stacking and replication, regardless of the operator's skill level, based on the length of the rope-shaped form. In this case, it is easier to stack the light-cured denture base material in the stacking and replication area in the exact amount needed. Moreover, as a result, it is easier to ensure a certain level of quality and improve work efficiency, regardless of the operator's skill level.

[0066] Thus, according to the packaging body of this embodiment, in the denture manufacturing method using the reference denture illustrated in Patent Document 4, the packaging body can be appropriately used to perform the (C) stacking and copying process, especially the (C2) and / or (C3) stacking and copying process. This ensures a certain level of quality and improves work efficiency without relying on the skill level of the operators. However, the use of the packaging body of this embodiment is not limited to its use in the denture manufacturing of the reference denture illustrated in Patent Document 4. It can also be appropriately used in denture manufacturing methods for "other reference dentures" besides those illustrated in Patent Document 4, where the stacking and copying process is performed. Furthermore, even when used in the (C2) and / or (C3) stacking and copying process of the denture manufacturing method for the reference denture disclosed in Patent Document 4, its method of use is not particularly limited.

[0067] The packaging body of this embodiment is used in the stacking and replication process during the denture manufacturing method using a reference denture. Furthermore, it exhibits significant effects when used in the stacking and replication process of (C2) and / or (C3) of the denture manufacturing method using the reference denture disclosed in Patent Document 4. Therefore, before describing the details of the packaging body of this embodiment, the technical content disclosed in Patent Document 4 will be briefly explained regarding the reference denture and the denture manufacturing method using the reference denture (especially the stacking and replication process). Then, based on these explanations, the details of the packaging body of this embodiment will be described. However, the explanation of the technical content disclosed in Patent Document 4 is only for the purpose of making it easier for readers of this application specification to understand the packaging body of this embodiment.

[0068] Furthermore, in this application specification and other documents, unless otherwise specified, the use of terms such as "x~y" for numerical values ​​x and y indicates "above x and below y". In such descriptions, if only the numerical value y is given a unit, that unit also applies to the numerical value x. Additionally, in this application specification and other documents, the term "(meth)propylene" refers to both "propylene" and "methpropylene". Similarly, the term "(meth)acrylate" refers to both "acrylate" and "methacrylate", and the term "(meth)acryloyl" refers to both "acryloyl" and "methacryloyl".

[0069] 1. Regarding the standard denture

[0070] The reference denture comprises a reference denture base and artificial teeth fixedly held on the reference denture base. It has a mucosal surface facing the alveolar ridge mucosa, an abrasive surface capable of contacting at least one of the buccal mucosa and the tongue, and a base edge forming the boundary between the mucosal surface and the abrasive surface. Furthermore, the rope-shaped packaged material, as the packaging body in this embodiment, improves workability when stacking hardened denture base material in the reference denture.

[0071] The following are specific examples of standard dentures, for reference. Figure 1 The reference denture disclosed in Patent Document 4 will be described. It should be noted that the disclosure of Patent Document 4 is incorporated into this application specification by reference.

[0072] Figure 1 (a) is a top view of the shape of the maxillary reference denture disclosed in Patent Document 4, and is an explanatory diagram specifying the lengths of each part of the preferred planar shape. Figure 1 Figure (b) is a top view of the shape of the mandibular reference denture disclosed in Patent Document 4, and is an explanatory diagram specifying the lengths of each part of the preferred planar shape. Furthermore, for ease of explanation, the following will describe the denture in the labial direction with the denture installed in the patient's mouth. Figure 1 (a) and Figure 1 (b) The upper side of the diagram is set to "front," which is the direction of the throat side. Figure 1 (a) and Figure 1 (b) The lower part of the diagram is designated as "rear". Additionally, left and right directions refer to the direction viewed from the patient's side; specifically, "right side" refers to... Figure 1 The left side of the illustration in (a) and Figure 1 In (b), the right side of the diagram, "left side" refers to... Figure 1 The right side of the illustration in (a) and Figure 1 (b) is shown on the left side of the diagram. Furthermore, in the patient's mouth, the right cheek is located on the "right side" of the reference denture, and the left cheek is located on the "left side" of the reference denture.

[0073] like Figure 1 (a) and Figure 1 As shown in Figures (b), in the following description, for the maxillary reference denture 1A, the point on the posterior edge of the denture base (the edge of the denture base on the larynx side) corresponding to the left pterygomaxillary notch is designated as the first reference point for the maxilla: P. For the mandibular reference denture 1B, the point on the posterior edge of the denture base (the edge of the denture base on the larynx side) corresponding to the left molar pad is designated as the first reference point for the mandibular: p. Similarly, the point on the posterior edge of the denture base (the edge of the denture base on the larynx side) in the maxillary reference denture 1A corresponding to the right pterygomaxillary notch is designated as the second reference point for the maxilla: Q. The point on the posterior edge of the denture base (the edge of the denture base on the larynx side) in the mandibular reference denture 1B corresponding to the right molar pad is designated as the second reference point for the mandibular: q. Furthermore, the point in the center of the labial denture base edges 3A1 and 3B1, corresponding to the upper (lower) labial frenulum, is designated as the third reference point for the maxilla (mandibular): O (o). Furthermore, the length of the line segment PQ(pq) connecting P(p) and Q(q) is set as the reference length. A preferred planar shape is one where the lengths of multiple points P1(p1), P2(p2), P3(p3), Q1(q1), Q2(q2), and Q3(q3) set at predetermined positions on the two reference line segments OP(op) and OQ(oq) connecting the third reference point and the first and second reference points, respectively, up to the base edge (3A, 3B) (details will be described later), and the length of the line segment OM(om) with the midpoint of line segment PQ(pq) set as M(m), are each formed such that the ratios relative to the aforementioned reference lengths are within a predetermined range. It should be noted that the aforementioned reference points and multiple points do not necessarily have to exist on the same plane, but since the height difference between the lengths of each line segment relative to the predetermined shape is very small, it is treated as a planar shape in this application specification.

[0074] The following sections, divided into maxillary reference denture 1A and mandibular reference denture 1B, will explain the lengths (standardized relative lengths with the reference length set to 1) from the aforementioned points P1(p1), P2(p2), P3(p3), Q1(q1), Q2(q2), Q3(q3) to the denture base edges 3A and 3B, respectively.

[0075] 1-2. Preferred planar shape of the maxillary reference denture 1A

[0076] like Figure 1As shown in (a), the points P1, P2, P3, and Q1, Q2, Q3 of the maxillary reference denture 1A are: three points on line segment OP that divide the line segment into four equal parts (points P1, P2, and P3 from the front (point O side) to the rear), and three points on line segment OQ that divide the line segment into four equal parts (points Q1, Q2, and Q3 from the front (point O side) to the rear). Then, the following point is determined: the point where the perpendicular line drawn from the line segment OP or line segment OQ containing each point P1, P2, P3, Q1, Q2, Q3 intersects the anterior denture base edge 3A (in other words, the denture base edges on the right and left buccal sides). In this case, for a point on line segment OP, the point intersecting with the left side (right side of the diagram) of the base edge 3A is determined; for a point on line segment OQ, the point intersecting with the right side (left side of the diagram) of the base edge 3A is determined. Specifically, points D1, D2, and D3 are determined as points corresponding to P1, P2, and P3, and similarly, points E1, E2, and E3 are determined as points corresponding to Q1, Q2, and Q3. Furthermore, the lengths from each point P1, P2, P3, Q1, Q2, and Q3 to the base edge 3A represent the relative lengths of line segments P1D1, P2D2, P3D3, Q1E1, Q2E2, and Q3E3 relative to line segment PQ.

[0077] The preferred planar shape of the maxillary reference denture 1A is specifically as follows: the relative length of line segment OM is 0.76 to 0.98, the relative lengths of line segments P1D1 and Q1E1 are 0.11 to 0.36, the relative lengths of line segments P2D2 and Q2E2 are 0.19 to 0.45, and the relative lengths of line segments P3D3 and Q3E3 are 0.16 to 0.45. The maxillary reference denture 1A having this shape is suitable for use in the manufacture of dentures using the packaging body of this embodiment.

[0078] 1-3. Preferred planar shape of the mandibular reference denture 1B

[0079] like Figure 1As shown in (b), points p1, p2, p3, q1, q2, q3, and m of the mandibular reference denture 1B correspond to points P1, P2, P3, Q1, Q2, Q3, and M of the maxillary reference denture 1A, respectively. Furthermore, the length from each point p1, p2, p3, q1, q2, q3, and m to the base edge 3B includes the length between each point and the anterior base edge 3B, as well as the length between the anterior and posterior base edges 3B passing through each point. The lengths of each point and the anterior denture base edge 3B (in other words, the denture base edges on the left buccal side, right buccal side, and lower lip frenulum side) are respectively defined as the line segments p1d1, p2d2, p3d3, q1e1, q2e2, q3e3, and om corresponding to line segments P1D1, P2D2, P3D3, Q1E1, Q2E2, Q3E3, and OM of the maxillary reference denture 1A. Furthermore, the lengths between the anterior and posterior denture base edges 3B passing through each point p1, p2, p3, q1, q2, and q3 are defined as follows: First, determine the point where the perpendicular line drawn from the aforementioned line segments op or oq corresponding to each point p1, p2, p3, q1, q2, and q3 intersects the posterior denture base edge 3B. Specifically, b1, b2, and b3 are determined as points corresponding to p1, p2, and p3, and c1, c2, and c3 are determined as points corresponding to q1, q2, and q3. Here, the length between the front base edge 3B and the rear base edge 3B is: the relative length of line segments d1b1, d2b2, d3b3, e1c1, e2c2, and e3c3 relative to line segment pq, connecting the points on both sides of base edge 3B that are separated by each point p1, p2, p3, q1, q2, and q3.

[0080] The preferred planar shape of the mandibular reference denture 1B is specifically the following: the relative length of line segment om is 0.74 to 0.94, the relative lengths of line segments p1d1 and q1e1 are 0.11 to 0.32, the relative lengths of line segments p2d2 and q2e2 are 0.13 to 0.34, the relative lengths of line segments p3d3 and q3e3 are 0.14 to 0.33, the relative lengths of line segments d1b1 and e1c1 are 0.14 to 0.40, the relative lengths of line segments d2b2 and e2c2 are 0.19 to 0.41, and the relative lengths of line segments d3b3 and e3c3 are 0.21 to 0.42. The mandibular reference denture 1B having this shape is suitable for use in the manufacture of dentures using the packaging body of this embodiment. In the above preferred planar shapes, based on the positional relationship of each point, the following holds true: d1b1>p1d1, e1c1>q1e1, d2b2>p2d2, e2c2>q2e2, d3b3>p3d3, e3c3>q3e3.

[0081] 1-4. Regarding the cross-sectional shape of the reference denture

[0082] Figure 1 (a) (or) Figure 1 The cross-sectional shape of the maxillary reference denture 1A (or mandibular reference denture 1B) shown in (b) is equivalent to that from Figure 2 (a) (or) Figure 2 The maxillary denture 4A (or mandibular denture 4B) shown in (b) is excluding the portion thereof. Figure 2 The shape of the adjusting member 9 is shown in the oblique section. In other words, the reference dentures 1A, 1B and dentures 4A, 4B share a common structure in having reference denture base components 7A, 7B and artificial teeth 60A, 60B that are fixed to the gingival portion of the reference denture base components 7A, 7B. Here, the adjusting member 9 is a hardened material formed by hardening the rope-shaped molding (light-curing denture base material) that is stacked and replicated for reference dentures 1A, 1B in the (C) stacking and replication process. In addition, Figure 1 The denture base edges 3A and 3B, mucosal surfaces, and grinding surfaces of the reference dentures 1A and 1B shown in the diagram correspond to the following respectively: Figure 2 The dentures 4A and 4B shown have base edges 4A3 and 4B3, mucosal surfaces 4A1 and 4B1, and grinding surfaces 4A2 and 4B2. Furthermore, the anterior ends of base edges 4A3 and 4B3 face the mucosal surfaces 4A1 and 4B1, and the anterior ends of base edges 3A and 3B also face the mucosal surfaces.

[0083] 2. A method for manufacturing dentures using a reference denture and dentures obtained by this method.

[0084] Reference Figure 2 To explain, the method disclosed in Patent Document 4 involves manufacturing a denture according to the following steps: For reference dentures 1A and 1B, which have been determined to be used after (A) reference denture preparation and (B) reference denture determination, in (C) the stacking and replication step, hardened denture base material is stacked at predetermined positions on the mucosal surfaces 4A1 and 4B1 of the reference denture base components 7A and 7B. Then, the patient's oral cavity shape is replicated, and edge formation is further performed. Finally, in (D) the hardening step, the hardened denture base material is hardened. This produces a denture as shown in the image. Figure 2 The dentures shown are as follows. At this time, process (C) is performed on the central regions 5A1 and 5B1 of the base of the reference denture base components 7A and 7B, the anterior regions (anterior wing edges) 5A2 and 5B2 of the base ...

[0085] In the stacking and copying process disclosed in Patent Document 4 (C), stacking is performed by using a dental scraper or spatula to stack small amounts of paste-like hardened denture base material. A skilled operator who can conceive of the final shape of the adjustment component 9 can stack the hardened denture base material in an appropriate amount to minimize deformation during copying, thus achieving high precision in copying or edge formation without much effort. However, when stacking is performed by inexperienced operators, there are issues with time consumption and varying results. Specifically, if the amount of hardened denture base material stacked is small, repeated copying and stacking must be performed, followed by another stacking. In this case, localized over- or under-stacking of the material can occur, or gaps can form at the layer-to-layer interfaces during the stacking of hardened denture base material, or localized peeling can occur during copying. Conversely, if the amount of material stacked is excessive, copying becomes difficult, necessitating repeated reduction of the stacking amount and re-copying. Furthermore, even when replication is possible, it is not economical because the excess is wasted, and the replication process also results in discrepancies.

[0086] 3. Overview of the packaging body in this embodiment

[0087] A key feature of the packaging in this embodiment is that, during denture manufacturing, the light-cured denture base material, which is plastically deformable and serves as the packaged component, is supplied in a rope-like form. By using the rope-like form, anyone can easily control the precise amount of light-cured denture base material used in stacking and replication based on the length of the rope-like form. Therefore, regardless of the operator's skill level, it is very easy to stack and replicate the most suitable amount of light-cured denture base material for the replication surface. Furthermore, during stacking and replication, to adjust the amount of light-cured denture base material being stacked and replicated, or to stack and replicate the material in a manner corresponding to the shape of the stacking and replication surface, the rope-like form can be stacked on the stacking and replication surface in an overlapping manner, or the rope-like form can be appropriately deformed before being stacked on the stacking and replication surface. Therefore, by using the rope-like form, when manufacturing dentures using a denture manufacturing method based on a reference denture, a certain level of quality can be ensured and operational efficiency improved, regardless of the operator's skill level.

[0088] Furthermore, since the dimensions of patients' oral cavity vary greatly, the reference dentures used in denture manufacturing are mostly provided as reference dentures in several standard sizes, such as S, M, and L. Moreover, when manufacturing dentures using smaller reference dentures, the amount of light-cured denture base material required in the stacking and replication processes is relatively less; conversely, when manufacturing dentures using larger reference dentures, the amount of light-cured denture base material required in the stacking and replication processes is relatively more. Based on these points, in order to easily stack and replicate an appropriate amount of light-cured denture base material for reference dentures of various sizes, it is preferable that the rope-shaped molding has a specified cross-sectional area. It should be noted that "cross-sectional area" refers to the cross-sectional area of ​​the rope-shaped molding perpendicular to its length direction.

[0089] Here, in order to ensure a certain level of quality and improve work efficiency without being affected by the skill level of the operators, the inventors of this application further studied a particularly preferred range for the specified cross-sectional area. Therefore, from the viewpoint of avoiding excessive use (waste) of light-cured denture base material when manufacturing dentures using a reference denture, and facilitating replication and edge formation, the inventors of this application studied the amount of light-cured denture base material required in the (C) stacking and replication process. The results showed that the amount of light-cured denture base material required in the (C) stacking and replication process is preferably about 1.1 to 1.5 times the maximum value of the cross-sectional area of ​​each adjusting component 9 (filling the non-engaging space of the reference denture) in the manufactured denture. This insight was then applied to the stacking and replication processes of (C2) and / or (C3), and further research was conducted. As a result, the inventors of this application confirmed that if the cross-sectional area of ​​the rope-shaped body is 20 mm²... 2 ~65mm 2 Even if the amount of light-cured denture base material used is sometimes slightly excessive during these processes, it is less likely to result in a situation where additional light-cured denture base material needs to be added (i.e., insufficient use).

[0090] Therefore, the cross-sectional area of ​​the rope-shaped body is preferably 20 mm². 2 ~65mm 2 22mm is preferred 2 ~60mm 2 Further optimization of 24mm 2 ~55mm 2 In this case, for example, the entire range of the lower to upper limits of the cross-sectional area can be divided into several narrower ranges, and each zone can be assigned to a reference denture of each size. For example, a rope-shaped form with a cross-sectional area of ​​the lower limit or slightly larger than the lower limit can be used for a reference denture of size S, or a rope-shaped form with a cross-sectional area near the lower limit to the median value can be used for reference dentures of sizes S and M.

[0091] In addition, the cross-sectional area of ​​the rope-shaped body is set to 20mm. 2 ~65mm 2 For example, in the denture manufacturing method disclosed in Patent Document 4, the following effects can be achieved.

[0092] First, when using rope-shaped moldings to fill the non-engaged spaces of the reference dentures in the anterior regions 5A2 and 5B2 and the posterior regions 5A3 and 5B3 of the reference denture base components 7A and 7B constituting the reference dentures 1A and 1B, the occurrence of insufficient or excessive use of the light-cured denture base material (rope-shaped moldings) can be further reduced. Furthermore, when stacking the central regions 5A1 and 5B1 of the base in (C1), considering ductility and to avoid waste, the rope-shaped moldings are cut into appropriately sized pieces and pressed onto the oral mucosa or model. This allows for simple (C1) central stacking and replication processes without waste.

[0093] Furthermore, when the rope-shaped forming body is a linear component, it can be bent while being arranged along a line of any shape with a uniform amount (or thickness). Therefore, in the pre-stacking and replication process (C2) and / or the post-stacking and replication process (C3), the operation becomes simple and convenient by appropriately cutting the rope-shaped forming body when it is too long and appropriately lengthening it when it is too short. Additionally, when the cross-sectional area of ​​the rope-shaped forming body is set to 20 mm²... 2 ~65mm 2 Even when using any of the standard sizes of dentures such as S, M, and L, the aforementioned stacking and replication processes (C2) and / or (C3) can be performed more easily without adding light-cured denture base material. Therefore, this further reduces the possibility of differences in the completion status of stacking and replication areas between operators.

[0094] Furthermore, the planar shape of the rope-shaped body, as defined by the groove of the tray (described later), can be any shape, such as linear or loop, but preferably (1) a shape corresponding to at least a portion of the planar shape of the base edge of the reference denture, and more preferably (2) a loop corresponding to the planar shape of the base edge of the reference denture. When the planar shape of the rope-shaped body is set to the shape shown in (1) or (2) above, for example, by placing the reference dentures 1A and 1B on top of the tray while the rope-shaped body is stored therein, the rope-shaped body is arranged and pressed along the line at the top of the base edges 3A and 3B. Moreover, afterward, by removing the rope-shaped body from the groove, the rope-shaped body (light-cured denture base material) can be evenly arranged without deviating from the above-described line. Therefore, the stacking and replication processes of (C2) and / or (C3) can be performed more simply and conveniently.

[0095] The same or similar effects can also be obtained in other reference dentures and denture manufacturing methods other than those disclosed in Patent Document 4, besides the reference denture and the denture manufacturing method using the same.

[0096] Furthermore, regarding the cross-sectional area of ​​the rope-shaped body, it is not necessary for it to be constant relative to the length direction of the rope-shaped body, but from the viewpoint of manufacturing efficiency of the packaging, it is preferable to keep it constant relative to the length direction. Here, "constant" means: (1) completely constant (the deviation of the cross-sectional area relative to the length direction is 0%), or (2) approximately constant (the deviation of the cross-sectional area relative to the length direction is within ±10%, preferably within ±5% (wherein 0% is excluded)). In addition, there is no particular limitation on the length (L) of the rope-shaped body, which is generally preferred to be 50mm to 400mm, and more preferably 50mm to 400mm. In addition, when the rope-shaped body is a ring-shaped component that is estimated to be used up in one use, its length (L) is preferably the length corresponding to the full length of the base edge 3A, 3B of the reference denture 1A, 1B. Further, the ratio (L / D) of the length (L) of the rope-shaped body to the maximum width (D) of the cross-section of the rope-shaped body orthogonal to the length direction is generally preferably 4 or more, more preferably 4 to 48, and even more preferably 5 to 36.

[0097] Furthermore, the cross-sectional shape of the rope-shaped prosthesis orthogonal to the length direction is not particularly limited; for example, it can be circular, etc., but it is preferred to use the hardened material formed by stacking and replicating the rope-shaped prosthesis on the reference denture and hardening it. Figure 2 The shape approximates the cross-sectional shape of the adjusting component 9). Examples of such cross-sectional shapes include a semicircle or a crescent shape. Here, "semicircle" refers not only to (i) a semicircle with a central angle of 180 degrees, but also to (ii) a roughly semicircle with a central angle of approximately 160° to 200° (excluding exact central angles of 180 degrees), preferably approximately 170° to 190° (excluding exact central angles of 180 degrees), (iii) a roughly semi-ellipse with a central angle of approximately 160° to 200° (excluding exact central angles of 180 degrees), preferably approximately 170° to 190° (excluding exact central angles of 180 degrees), and (iv) a shape approximating any one of (i) to (iii). Furthermore, "crescent shape" refers to the shape of the non-overlapping portion, or a shape approximating it, when two circles with different diameters are arranged with their centers offset from each other and partially overlap. When the cross-sectional shape is semi-circular or crescent-shaped, replication and edge formation are easier.

[0098] Furthermore, compared to a circular cross-sectional shape, a semi-circular or crescent-shaped cross-sectional shape is particularly advantageous when stacking and replicating rope-like moldings above the base edges 3A and 3B of the reference dentures 1A and 1B. The reasons are as follows.

[0099] First, the outline of the semi-circular cross-sectional shape is formed by an arc portion, such as a circular or elliptical arc, and a chord portion connecting the two ends of the arc portion. The arc portion is formed by a curve that convexly protrudes in one direction, and the chord portion is formed by a straight line, a V-shape, or an inverted V-shape. Secondly, the outline of the crescent-shaped cross-sectional shape is formed by an arc portion, such as a circular or elliptical arc, and a chord portion formed by a curve connecting the two ends of the arc portion. The arc portion is formed by a curve that convexly protrudes in one direction. Furthermore, the base edge of the reference denture has a convex cross-sectional shape that protrudes towards the mucosal surface. Therefore, when a rope-like molding body with a circular cross-sectional shape is placed on top of the base edges 3A and 3B, and deformed to cover the vicinity of the top of the base edges 3A and 3B to form the edge, a large deformation operation is required. In contrast, when a rope-shaped forming body with a semi-circular or crescent-shaped cross-section is positioned on top of the base edges 3A and 3B with the central portion of the chord of the cross-sectional outline facing the top of the base edges 3A and 3B, and the rope-shaped forming body is deformed and edge-forming is performed in a manner that covers the vicinity of the top of the base edges 3A and 3B, the deformation operation can be further reduced. Therefore, compared to the case where the cross-sectional shape is circular, the workability during edge formation can be further improved when it is semi-circular or crescent-shaped.

[0100] In this embodiment, a light-curing material with plastic deformation properties is used as the material for the hardened denture base. This material is typically a paste containing liquid components; therefore, the rope-shaped form is housed within the internal space of a light-shielding component that maintains an airtight internal space. When the component housing the rope-shaped form is not light-shielding, hardening of the light-curing denture base material due to ambient light cannot be prevented. Furthermore, when the component housing the rope-shaped form is not airtight, reduction of volatile components and liquid leakage may occur. It should be noted that "airtight" here refers to a state where, under normal handling, transportation, or storage conditions, solid or liquid foreign matter will not intrude from the outside, thus preventing the loss or evaporation of the internal contents housed within the internal space. However, trace amounts of gas (such as oxygen in the air) that do not adversely affect the preservation of the internal contents are allowed to pass through components such as films or partitions constituting the light-shielding component.

[0101] The light-shielding component used in the packaging of this embodiment includes: (i) a tray having a groove for receiving the rope-shaped body, and (ii) at least one component selected from the group consisting of a bag body that receives the tray and a cover material that closes the opening of the groove. The tray is characterized by having a groove for receiving the rope-shaped body, defining the planar shape of the rope-shaped body, and preventing deformation of the cross-sectional shape of the rope-shaped body. By using such a tray, deformation of the cross-sectional shape of the rope-shaped body can be prevented during manufacturing or distribution of the packaging of this embodiment.

[0102] In the packaging of this embodiment, the rope-shaped body needs to be housed within a space that ensures both light-blocking and airtightness. Therefore, (a) when the light-blocking component consists of a tray and a bag, a bag with both light-blocking and airtightness is used. The tray may or may not be light-blocking. (b) Alternatively, when the light-blocking component consists of a tray and a cover, a tray and a cover with both light-blocking properties are used. Furthermore, airtightness is ensured by sealing the opening of the tray's groove using the cover.

[0103] Furthermore, (c) when the light-blocking component is composed of a bag body, a tray and a cover, light-blocking and airtightness are ensured by any of the first to fourth forms described below.

[0104] (c1) Firstly, as a first form, an example is the use of a bag that is both light-blocking and airtight (e.g., a black plastic bag with a sealing mechanism such as a zipper). In this case, the tray and lid may or may not be light-blocking. Furthermore, the airtightness of the internal space formed by the tray and lid may or may not be ensured.

[0105] (c2) As a second form, an example is the use of a bag that is not light-blocking but is airtight (e.g., a transparent plastic bag with a sealing mechanism such as a zipper). In this case, a light-blocking tray and a light-blocking cover are used. Moreover, when the opening of the tray's slot is closed by the cover, the airtightness of the internal space can be ensured, or it may not be ensured, as long as it can be closed in a way that prevents external light from entering the internal space formed by the tray and the cover.

[0106] (c3) As a third form, an example is the use of a bag that is light-blocking but not airtight (e.g., a black plastic bag without a zipper or other sealing mechanism). In this case, airtightness is ensured by sealing the opening of the tray's groove using a lid. Furthermore, the tray and lid may or may not be light-blocking.

[0107] (c4) As a fourth form, an example is the use of a bag that does not provide light protection or airtightness (e.g., a transparent plastic bag without a zipper or other sealing mechanism). In this case, a light-proof tray and a light-proof cover are used. Furthermore, airtightness is ensured by sealing the opening of the tray's groove using the cover.

[0108] Furthermore, in the packaging of this embodiment, it is particularly preferable to place a light-shielding tray and a lid inside a bag that provides both light-shielding and airtightness, and to seal the opening of the tray's groove with the lid. In this case, both light-shielding and airtightness can be ensured in the bag and the component consisting of the tray and lid. Therefore, even if the bag is damaged during storage or handling, light-shielding and airtightness can still be ensured by the tray and lid.

[0109] 4. Specific examples of the packaging body in this embodiment

[0110] Hereinafter, taking the packaging body of this embodiment, which uses a ring-shaped rope-like body or a linear rope-like body as the packaged body, as an example, refer to... Figures 3-5 Specific examples of the packaging body in this embodiment will be described in detail.

[0111] Figure 3 It is a schematic diagram of a package containing a ring-shaped rope-like molding body that corresponds to the planar shape of the base edge 3A of the maxillary reference denture 1A, wherein, Figure 3 (a) is its top perspective view. Figure 3 (b) is based on Figure 3 The symbol Z in (a) A -Z A 'A cross-sectional view of the part shown.'

[0112] Figure 4 It is a schematic diagram of a package containing a ring-shaped rope-like structure that corresponds to the planar shape of the base edge 3B of the mandibular reference denture 1B, wherein... Figure 4 (a) is its top perspective view. Figure 4 (b) is based on Figure 4 The symbol Z in (a) B -Z B 'A cross-sectional view of the part shown.'

[0113] in addition, Figure 5 This is a schematic diagram of a package containing a straight (i.e., rod-shaped) rope-like molded body that can be used in the manufacture of denture 4, which can be used in the manufacture of either the maxillary reference denture 1A or the mandibular reference denture 1B. Figure 5 (a) is its top perspective view. Figure 5 (b) is based on Figure 5 The symbol Z in (a)C -Z C 'A cross-sectional view of the part shown.'

[0114] Furthermore, the dimensional ratios of the structural elements in these drawings do not necessarily have to match the actual dimensions of the packaging. For example, for ease of illustration, the thickness of bag 12 is drawn to be greater than its actual thickness.

[0115] like Figures 3 to 5 As shown, the packaging body 10 of this embodiment includes a rope-shaped body 11 and a light-shielding member 15. The light-shielding member 15 has an airtight internal space and houses the rope-shaped body 11 within this internal space. The rope-shaped body 11 is formed from a paste-like, light-curing denture base material with plastic deformability, molded into a rope shape with a predetermined cross-sectional area, cross-sectional shape, and length. The light-shielding member 15 includes a bag body 12, a tray 151, and a cover 14. Here, the tray 151 and the cover 14, which closes the opening of the groove 150 of the tray 151, are disposed inside the bag body 12. The tray 151 also has a groove 150 for housing the rope-shaped body 11, defining the planar shape of the rope-shaped body 11 and preventing deformation of its cross-sectional shape.

[0116] As a light-curing denture base material constituting the rope-shaped molding 11, there are no particular limitations as long as it is a light-curing denture base material. For example, the material disclosed in Patent Document 4 can be used without particular limitation. Such a light-curing denture base material generally contains at least: <1> for example, polymeric monomers (monomer components) composed of (meth)acrylate monomers such as methyl methacrylate, ethyl methacrylate, 2-(meth)acryloyloxyethyl propionate, ethylene glycol di(meth)acrylate, nonaethylene glycol di(meth)acrylate, and trimethylolpropane tri(meth)acrylate; <2> for example, photopolymerization initiators such as camphorquinone, benzyl, diacetyl, and cyclobutenedione; <3> for example, organic fillers such as poly(methyl methacrylate) and poly(ethyl methacrylate), and further, as needed, <4> for example, inorganic fillers such as silica, alumina, and quartz glass, or other additives. The material used for light-cured denture bases before curing is a material that can be plastically deformed, and in addition, it is a material that can maintain its shape without external stress.

[0117] It should be noted that this plastic deformation characteristic is manifested through (i) the dissolution of a portion of organic filler such as poly(methyl methacrylate) in the polymeric monomer, (ii) softening due to swelling of the polymeric monomer, or (iii) the generation of an interaction similar to (ii) above. The light-curing denture base material is preferably a material whose curing modulus is 0.50 GPa to 3.0 GPa. In this way, denture deformation caused by stress generated during chewing can be minimized, and the denture can follow the curvature of the jawbone caused by mouth opening and closing, thus easily achieving a good wearing experience. To ensure that the curing modulus is within the above range, the light-curing denture base material preferably contains 20 to 80 parts by mass of organic filler with a molecular weight of 50,000 to 1,000,000 relative to 100 parts by mass of the polymeric monomer. Furthermore, from the viewpoint of easily obtaining a light-curing denture base material with plastic deformation, polymeric monomers with a molecular weight of 500 or less are preferably used as polymeric monomers.

[0118] As a form in which the rope-shaped body 11 is housed airtightly within the light-shielding member 15, the tray 151 is covered by a cover material 14 while the rope-shaped body 11 is housed in the groove 150. The cover material 14 only needs to cover the opening of the tray 151, that is, the entire groove 150 when viewed from above.

[0119] The materials for the tray 151, cover 14, and bag 12 are appropriately selected from resin or metal materials depending on whether they are intended to provide light protection or a sealed environment. Common thermoplastic resins such as polyethylene, polypropylene, and polyethylene terephthalate are typically used. When providing light protection, it is preferable to use vapor-deposited films or sheets coated with aluminum, or laminated films or sheets laminated with aluminum films. Such laminated films or sheets are particularly preferably equipped with a sealing layer to allow for heat sealing or sealing, and more preferably have a layer composed of polymeric monomers contained in the rope-like molded body 11 (material for light-curing denture bases).

[0120] When using a light-shielding bag 12, from the viewpoint that the oxygen present in the voids S within the bag 12 hinders the polymerization of the rope-shaped body 11 (material for light-curing denture bases) during storage, it is preferable to use general-purpose thermoplastic resins such as polyethylene, polypropylene, and polyethylene terephthalate with a certain degree of oxygen permeability as the materials for the tray 151 and the cover 14. In particular, when using polymeric monomers with a molecular weight of 500 or less in the light-curing denture base material and using a light-shielding bag 12, the tray 151 and the cover 14 are preferably made of materials with low permeability of volatile polymeric monomers such as polyethylene terephthalate and a certain degree of oxygen permeability. In this way, it is easy to suppress the reduction in plastic deformation of the rope-shaped body 11 caused by the permeation of volatile polymeric monomers through the tray 151 and the cover 14.

[0121] Furthermore, the thicknesses of the bag body 12, tray 151, and lid 14 can be appropriately determined within a range that prevents breakage and does not obstruct the removal of the rope-shaped body 11. Additionally, to facilitate easy removal by gently pressing (pressing) the tray 151 with a finger to deform it and push out the internal rope-shaped body 11, the tray 151 preferably has moderate flexibility or elasticity. From this viewpoint, the thickness of the tray 151 is preferably in the range of 100 μm to 2000 μm. Furthermore, from the viewpoint of ease of removal of the lid 14 from the tray 151, the thickness of the lid 14 is preferably 5 μm to 250 μm. Additionally, from the viewpoint of easy opening of the bag body 12, the thickness of the bag body 12 is preferably 5 μm to 250 μm.

[0122] The cross-sectional shape (hereinafter referred to as "cross-sectional shape") of the groove 150 orthogonal to the length direction is preferably: (i) semi-circular, (ii) approximately semi-circular, (iii) semi-elliptical, (iv) approximately semi-elliptical, or (v) a shape approximately equal to any of (i) to (iv). As a result of... Figure 3 (a) Figure 4 (a) and Figure 5 Z in (a) A -Z A 'Section, Z' B -Z B 'Section and Z' C -Z C 'Cross-section view' Figure 3 (b) Figure 4 (b) and Figure 5In section (b), the cross-sectional shape of groove 150 is shown to be approximately semi-circular. In particular, when it is stacked on the periphery of the mucosal surface of the maxillary reference denture 1A (i.e., the denture base edge 3A), the width (chord length) of the cross-sectional shape of groove 150A is preferably 8 mm to 12 mm, and the height is preferably 5 mm to 7 mm. Furthermore, when it is stacked on the periphery of the mucosal surface of the mandibular reference denture 1B (i.e., the denture base edge 3B), the width of the cross-sectional shape of groove 150B is preferably 5 mm to 8 mm, and the height is preferably 5 mm to 8 mm.

[0123] Furthermore, for example, the rope-shaped body 11 can be easily obtained by extruding or stamping the material used to form the light-cured denture base. Additionally, by appropriately selecting the forming conditions, the cross-sectional area and shape of the section orthogonal to the length direction of the rope-shaped body 11, as well as the length of the rope-shaped body 11, can be adjusted. For example, in extrusion forming, if a die is used, a rope-shaped body 11 with the desired cross-sectional area and shape and of arbitrary length can be obtained; therefore, the rope-shaped body 11 can be appropriately cut to the desired length. Further, if necessary, the rope-shaped body 11 cut to the desired length can be appropriately bent into a loop shape having a desired planar shape, and then the two ends of the rope-shaped body 11 can be connected. In the case of stamping forming, by using a prescribed die, a linear or annular rope-shaped body 11 with a desired cross-sectional area, cross-sectional shape, length, and planar shape corresponding to the shape of the die can be obtained.

[0124] The rope-shaped form 11 housed in the light-shielding component 15 has its planar shape defined by the groove 150 of the tray 151, preventing deformation of its cross-sectional shape. Therefore, the cross-sectional shape of the rope-shaped form 11 (wherein the arcuate shape in the cross-sectional outline of the cross-section) has a shape "consistent" with the cross-sectional shape of the groove 150. Here, in Figure 3 (b) Figure 4 (b) and Figure 5In the example shown in (b), the cross-sectional shape of the rope-shaped body 11 has a semi-circular shape with a central angle of 180 degrees. Furthermore, from the viewpoint of more reliably preventing deformation of the cross-sectional shape of the rope-shaped body 11, the cross-sectional shape of the rope-shaped body 11 (wherein, the chord shape of the cross-sectional profile) is more preferably a shape that "matches" the cross-sectional shape of the inner wall surface of the cover material 14. Here, "matches" means completely matching or substantially matching. It should be noted that the figures shown depict a configuration where the cross-sectional shape of the rope-shaped body 11 is completely matching the cross-sectional shape of the groove 150 and the inner wall surface of the cover material 14, the entire surface of the arc portion of the cross-sectional profile of the rope-shaped body 11 is in close contact with the inner wall surface of the groove 150, and the chord portion of the cross-sectional profile of the rope-shaped body 11 is in close contact with the inner wall surface of the cover material 14. However, as long as deformation of the rope-shaped body 11 in the storage state inside the packaging body 10 can be prevented, it can also be in the form where the outer peripheral surface of the rope-shaped body 11 is in partial contact with the inner wall surface of the cover material 14 and the groove 150 (in other words, in the form where a gap is locally generated).

[0125] The planar shape of the rope-shaped body 11 is preferably linear or ring-shaped.

[0126] The annular rope-like forming bodies 11A and 11B have a length suitable for the periphery of the mucosal surface of the reference dentures 1A and 1B used in the manufacture of dentures 4A and 4B (i.e., the base edges 3A and 3B). In this case, the perimeter X of the annular rope-like forming bodies 11A and 11B is preferably set to be the same as the perimeter Y of the base edges 3A and 3B, or slightly longer than the perimeter of the base edges 3A and 3B (a length exceeding 100% but less than 130% relative to the perimeter Y). Furthermore, when the dimensions of the reference dentures 1A and 1B vary, there are multiple perimeters Y (i.e., perimeters Y1, Y2, Y3, etc.) corresponding to the size changes. In this case, it is preferable to set the perimeter X of the annular rope-like forming bodies 11A and 11B to multiple values ​​according to the size changes of the reference dentures 1A and 1B. For example, if there are n possible dimensional variations of the reference dentures 1A and 1B, corresponding to circumferences Y1, Y2…Yn, the circumferences X1, X2…Xn of the annular rope-shaped bodies 11A and 11B can be set relative to the circumferences Y1, Y2…Yn, respectively. Here, n is an integer greater than or equal to 1.

[0127] On the other hand, regarding the linear rope-shaped forming body 11C, it can be combined in two or more pieces, or cut, as needed, thereby easily adjusting to an appropriate length. Therefore, there is no particular limitation on the length of the linear rope-shaped forming body 11C. However, the linear rope-shaped forming body 11C preferably has the following lengths (1) or (2): (1) a length suitable for stacking on the periphery of the mucosal surface of the reference dentures 1A, 1B (i.e., the denture base edges 3A, 3B) by using one rope-shaped forming body 11C, and (2) a length suitable for stacking on the periphery of the mucosal surface of the reference dentures 1A, 1B (i.e., the denture base edges 3A, 3B) by combining two rope-shaped forming bodies 11C. Here, in the case described in (1) above, the length X of the rope-shaped forming body 11C is preferably set to be the same as the perimeter Y of the base edges 3A and 3B of the reference dentures 1A and 1B used in the manufacture of dentures, or slightly longer than the perimeter of the base edges 3A and 3B (a length that is more than 100% but less than 130% relative to the perimeter Y).

[0128] In addition, such as Figure 5 As shown, when the planar shape of the rope-shaped body 11C is linear or rod-shaped, it can be formed by extrusion molding and simultaneously filled into the groove 150C of the tray 151C without gaps between it and the inner wall surface of the groove 150C. In this case, the planar shape, cross-sectional shape, and length of the groove 150C are consistent with the planar shape, cross-sectional shape, and length of the rope-shaped body 11C, respectively.

[0129] Above, refer to Figures 3-5 Specific examples of the packaging body 10 in this embodiment have been described in detail, but these are only one embodiment, and the packaging body 10 in this embodiment is not limited to... Figures 3-5 The specific form illustrated in .

[0130] 5. Method of using the packaging body of this embodiment

[0131] When manufacturing a denture using the packaging material of this embodiment, the following steps can be performed: namely, performing the stacking and replication process and the hardening process.

[0132] In the above-described stacking and replication process, (A) a light-curing denture base material with plastic deformability is stacked on at least one of the stacking target area selected from at least a portion of the base edge of the reference denture and at least a portion of the mucosal surface. Then, (B1) after the reference denture with the stacked light-curing denture base material is positioned in an appropriate position in the patient's oral cavity, the shape of the mucosa in the patient's oral cavity is replicated to the light-curing denture base material, and edge formation is performed to remove the remaining light-curing denture base material. Alternatively, (B2) after the reference denture with the stacked light-curing denture base material is positioned in an appropriate position on a virtual occlusal plane in an occlusal appliance in which a model of the patient's oral cavity is mounted, the shape of the model of the patient's oral cavity is replicated to the light-curing denture base material, and edge formation is performed to remove the remaining light-curing denture base material.

[0133] The aforementioned hardening process is carried out after the stacking and replication processes, which hardens the material used for the light-curing denture base.

[0134] Here, when the light-curing denture base material is stacked in the stacking target area, a rope-shaped forming body taken from the packaging body of this embodiment is used as the light-curing denture base material. Furthermore, when the light-curing denture base material is stacked in an area including at least a portion of the base edge, the planar shape of the rope-shaped forming body, as defined by the groove, is preferably a shape corresponding to the planar shape of at least a portion of the base edge.

[0135] The following describes a method for manufacturing a denture using the reference denture disclosed in Patent Document 4, which utilizes... Figures 3-5 The stacking and replication process of the packaging body 10 in this embodiment will be described.

[0136] First, in use Figure 3 and Figure 4 In the case of packaging bodies 10A and 10B shown, Figure 3 and Figure 4 The bags 12A and 12B shown are opened, and the trays 151A and 151B, whose openings in the slots 150A and 150B are sealed by the cover materials 14A and 14B, are taken out. Next, after peeling the cover materials 14A and 14B from the trays 151A and 151B, the annular rope-shaped bodies 11A and 11B, which are stored in the slots 150A and 150B, are taken out. Then, using the taken-out rope-shaped bodies 11A and 11B, the (C) stacking and replication process is performed on the reference dentures 1A and 1B.

[0137] In addition, in use Figure 5 In the case of the packaging 10C shown, it is also in accordance with the use Figure 3 and Figure 4 The same steps are followed when using packaging bodies 10A and 10B as shown: The rope-shaped forming body 11C, with a straight planar shape (i.e., rod-shaped), is removed from the slot 150C. Then, the length and planar shape of the removed rope-shaped forming body 11C are adjusted to suit the stacking of the reference dentures 1A and 1B. Here, the length of the rope-shaped forming body 11C is adjusted by appropriately cutting or connecting it, and its planar shape is adjusted by appropriately bending it. Furthermore, in addition to these operations, the process is similar to using… Figure 3 and Figure 4 The same stacking and replication process (C) is performed on the packaging bodies 10A and 10B shown.

[0138] In the (C1) central stacking and replication process, it is particularly preferred to use Figure 5 The linear (i.e., rod-shaped) rope-like formed body 11C shown is in this case. The linear (i.e., rod-shaped) rope-like formed body 11C (or a portion thereof) is oriented with the chord of the cross-sectional profile of the linear rope-like formed body 11C facing... Figure 2 The lower side of (a) Figure 2 In the manner of setting on the upper side of (b), Figure 2 (a) (or) Figure 2 The mucosal surface 4A1 (or mucosal surface 4B1) of the central region 5A1 (or central region 5B1) of the base shown in (b) is then placed on the appropriate position on the virtual occlusal plane within the patient's oral cavity or the occlusal appliance, and the shape of the mucosa or the model of the patient's oral cavity is copied to the light-cured denture base material (the stacked rope-shaped body 11C).

[0139] Furthermore, in the (C2) front stacking and copying process and the (C3) rear stacking and copying process, it is particularly preferable to use Figure 3 and Figure 4 The annular rope-shaped forming bodies 11A and 11B are shown. In this case, the stacking of the annular rope-shaped forming bodies 11A and 11B on the base edges 3A and 3B of the reference dentures 1A and 1B is preferably carried out according to the steps shown in (1) or (2) below.

[0140] That is, (1) First, the openings of the grooves 150A and 150B of the trays 151A and 151B after the cover materials 14A and 14B are removed are formed so that they face upward. Next, the reference dentures 1A and 1B are placed on top of the rope-shaped forming bodies 11A and 11B housed in the grooves 150A and 150B with the mucosal surface facing downward, so that the base edges 3A and 3B of the reference dentures 1A and 1B are in close contact with the rope-shaped forming bodies 11A and 11B.

[0141] Alternatively, (2) the steps shown in (1) above are performed with the vertical trays 151A, 151B and the reference dentures 1A, 1B in opposite positions.

[0142] Additionally, in the stacking of the rope-shaped molding 11 implemented on the base edges 3A and 3B of the reference dentures 1A and 1B, it is also possible to use Figure 5 The linear (i.e., rod-shaped) rope-like forming body 11C shown is used in this case. The rope-like forming body 11C can be cut (or two or more rope-like forming bodies 11C are connected) into a shape suitable for stacking on the reference dentures 1A and 1B, and then bent.

[0143] (3) That is, the planar shape of the rope-shaped molding 11C is bent and its length is adjusted so that its planar shape and length correspond to the periphery of the mucosal surface (base edges 3A, 3B) of the reference dentures 1A, 1B. Next, the chord (straight part) of the cross-sectional outline of the rope-shaped molding 11C, whose planar shape and length have been adjusted, is brought into close contact with the base edges 3A, 3B of the reference dentures 1A, 1B. In addition, this operation is performed in the vertical direction with the rope-shaped molding 11C positioned on the upper side relative to the reference dentures 1A, 1B.

[0144] Then, the reference dentures 1A and 1B, on which the rope-shaped body 11 has been stacked through any of the stacking steps shown in (1) to (3) above, are positioned at appropriate locations on the virtual occlusal plane within the patient's oral cavity or the occlusal appliance. The shape of the mucosa within the patient's oral cavity or the shape of the model within the patient's oral cavity is copied to the light-curing denture base material (the stacked rope-shaped body 11). Then, edge forming is performed approximately simultaneously with the copying, and the remaining light-curing denture base material is removed.

[0145] Thus, by using the packaging body 10 of this embodiment, when manufacturing dentures by the denture manufacturing method disclosed in Patent Document 4, the (C) stacking and copying process, especially the (C2) front stacking and copying process and / or (C3) rear stacking and copying process, can be performed efficiently and stably.

[0146] (Symbol Explanation)

[0147] 1…The reference denture of Patent Document 4

[0148] 1A…Patent Document 4: Maxillary Reference Denture

[0149] 1B…Patent Document 4: Standard Mandibular Denture

[0150] 2A…Maxillary reference denture base (corresponds to maxillary reference denture components)

[0151] 2B… Mandibular reference denture base (corresponds to mandibular reference denture components)

[0152] 3A, 3B... Basement Edge

[0153] 3A1, 3B1…lip-side base edge

[0154] 3A2, 3B2… Cheek-side base edge

[0155] 4… dentures

[0156] 4A…Maxillary dentures

[0157] 4B…Mandibular denture

[0158] 4A1, 4B1…mucosal surface

[0159] 4A2, 4B2... Grinding surface

[0160] 4A3, 4B3... Basement Edge

[0161] 4A4, 4B4... Neck of teeth

[0162] 4A5, 4B5...wing edges

[0163] 5… Dental base

[0164] 5A… Maxillary denture base

[0165] 5B…Mandibular denture base

[0166] 5A1, 5B1… Central region of the basement

[0167] 5A2, 5B2… Forward region of the base (forward wing edge)

[0168] 5A3… Posterior basal region (palatal support)

[0169] 5B3…Peripheral region (tongue-side wing edge)

[0170] 7…Standard denture base components

[0171] 7A…Maxillary Standard Denture Base Components

[0172] 7B…Mandibular Standard Denture Base Components

[0173] 8…Standard denture components

[0174] 8A…Maxillary reference denture components

[0175] 8B… Standard denture components for the mandible

[0176] 9… Adjustment components

[0177] 9A1, 9B1… Central Adjustment Components

[0178] 9A2, 9B2... Front Adjustment Components

[0179] 9A3… Rear adjustment component (palm support adjustment part)

[0180] 9B3… Rear adjustment component (tongue-side wing adjustment part)

[0181] 60, 60A, 60B... Artificial teeth

[0182] 60A1, 60B1… Artificial canines (artificial teeth for canines)

[0183] 60A1p, 60B1p… the cusps of artificial canines

[0184] 10…Packaging

[0185] 10A…Packaging body (ring-shaped for maxillary use)

[0186] 10B…Packaging body (ring for lower jaw)

[0187] 10C…Packaging body (straight shape for upper and lower jaws)

[0188] 11… Rope-shaped body

[0189] 11A… Rope-shaped molding (ring for maxilla)

[0190] 11B…Linear shaping body (ring for mandible)

[0191] 11C…Linear shaping body (straight shape for upper and lower jaws)

[0192] 12…bag body

[0193] 12A, 12B, 12C...bags

[0194] 14… Cover Material

[0195] 14A…Capping material (ring-shaped for maxilla)

[0196] 14B… Cap material (ring-shaped for the lower jaw)

[0197] 14C… Cap material (straight shape for upper and lower jaws)

[0198] 15…Light-shielding components

[0199] 15A…Sun-shielding component (ring-shaped for maxilla)

[0200] 15B…Sun-shielding component (ring for the lower jaw)

[0201] 15C…Sun-shielding component (straight shape for upper and lower jaws)

[0202] 150… slots

[0203] 150A…groove (ring for maxilla)

[0204] 150B…groove (ring for mandible)

[0205] 150C…groove (straight shape for upper and lower jaws)

[0206] 151… pallet

[0207] 151A… Tray (Ring for Maxilla)

[0208] 151B… Tray (Ring for Mandible)

[0209] 151C… Tray (Straight type for upper and lower jaws)

[0210] S…gap

Claims

1. A material packaging body for a denture base, characterized in that, have: Rope-like molding, which is formed by shaping a light-cured denture base with plastic deformability into a rope shape, and A light-shielding component having an airtight internal space and housing the rope-shaped body within the internal space; The light-shielding component includes: (i) A tray having a groove for receiving the rope-shaped body, and (ii) Selected from at least one component of the group consisting of a bag body that houses the tray therein and a cover that closes the opening of the slot; The thickness of the tray is in the range of 100μm to 2000μm.

2. The packaging body for denture base materials according to claim 1, characterized in that, The cross-sectional area of ​​the rope-shaped body is 20 mm. 2 ~ 65mm 2 Within the range.

3. The packaging body for denture base materials according to claim 1 or 2, characterized in that, The cross-sectional shape of the rope-shaped body, which is orthogonal to the length direction, is semi-circular or crescent-shaped.

4. The packaging body for the denture base according to any one of claims 1 to 3, characterized in that, The planar shape of the rope-shaped body, as defined by the groove, is linear or annular.

5. The packaging body for denture bases according to any one of claims 1 to 4, characterized in that, When a denture is manufactured using the aforementioned rope-shaped molding and a reference denture, the planar shape of the rope-shaped molding, defined by the groove, corresponds to at least a portion of the planar shape of the base edge of the reference denture. The reference denture has the following features: (i) The mucosal surface, which is the surface opposite to the alveolar ridge mucosa. (ii) an abrasive surface, which is capable of contacting at least one of the buccal mucosa and the tongue, and (iii) The edge of the base, which forms the boundary between the mucosal surface and the abrasive surface.

6. The packaging body for denture base materials according to claim 5, characterized in that, The planar shape of the rope-shaped body, defined by the groove, is an annular shape corresponding to the planar shape of the base edge of the reference denture.

7. The packaging body for denture base materials according to claim 5, characterized in that, The reference denture includes a reference denture for the maxilla. In the aforementioned maxillary reference denture (1) When the length of the line segment (PQ) connecting the point (P) on the throat side of the basement edge corresponding to the left pterygoid maxillary notch and the point (Q) on the throat side of the basement edge corresponding to the right pterygoid maxillary notch is set to 1, The length of the line segment (OM) connecting the point (O) at the center of the base edge on the lip side, corresponding to the upper lip frenulum, to the midpoint (M) of the line segment (PQ) is 0.76 ~ 0.

98. (2) When the line segment (OP) connecting point (O) and point (P) is divided into four equal parts, points (P1), (P2), and (P3) are designated from the side of point (O). Points (D1), (D2), and (D3) are designated as points on the left cheek side where the vertical line from points (P1), (P2), and (P3) on the line segment (OP) intersects with the edge of the base of the base. Divide the line segment (OQ) connecting point (O) and point (Q) into four equal parts, and designate the points as points (Q1), (Q2), and (Q3) starting from the side of point (O). Then, designate the points where the perpendicular lines from points (Q1), (Q2), and (Q3) on the line segment (OQ) intersect the edge of the base on the right cheek side as points (E1), (E2), and (E3), respectively. The lengths of line segments (P1D1) and (Q1E1) are 0.11 to 0.36 respectively. The lengths of line segments (P2D2) and (Q2E2) are 0.19 to 0.45 respectively. The lengths of line segments (P3D3) and (Q3E3) are 0.16 to 0.45, respectively.

8. The packaging body for denture base materials according to claim 5, characterized in that, The reference denture includes a reference denture for the mandible. In the aforementioned mandibular reference denture, (1) When the length of the line segment (pq) connecting the point (p) on the throat side of the base corresponding to the left postmolar pad and the point (q) on the throat side of the base corresponding to the right postmolar pad is set to 1, The length of the line segment (om) connecting the point (o) at the center of the base edge on the lip side, corresponding to the lower lip frenulum, to the midpoint (m) of the line segment (pq) is 0.74 ~ 0.

94. (2) When the line segment (op) connecting point (o) and point (p) is divided into four equal parts, points (p1), (p2), and (p3) are designated from the side of point (o). Points (d1), (d2), and (d3) are designated as points on the left cheek side where the vertical line from points (p1), (p2), and (p3) on the line segment (op) intersects with the edge of the base on the left cheek side. Divide the line segment (oq) connecting point (o) and point (q) into four equal parts, and designate the points as points (q1), (q2), and (q3) starting from the side of point (o). Then, designate the points where the perpendicular lines from points (q1), (q2), and (q3) on the line segment (oq) intersect the edge of the base on the right cheek side as points (e1), (e2), and (e3), respectively. The lengths of line segments (p1d1) and (q1e1) are 0.11 to 0.32 respectively. The lengths of line segments (p2d2) and (q2e2) are 0.13 to 0.34 respectively. The lengths of line segments (p3d3) and (q3e3) are 0.14 and 0.33 respectively. (3) When the points where the vertical lines from the points (p1), (p2), and (p3) on the line segment (op) intersect with the edge of the base on the throat side are respectively designated as points (b1), (b2), and (b3), and the points where the vertical lines from the points (q1), (q2), and (q3) on the line segment (oq) intersect with the edge of the base on the throat side are respectively designated as points (c1), (c2), and (c3), The lengths of line segments (d1b1) and (e1c1) are 0.14 and 0.40 respectively. The lengths of line segments (d2b2) and (e2c2) are 0.19 and 0.41 respectively. The lengths of line segments (d3b3) and (e3c3) are 0.21 to 0.42, respectively.

9. A method for manufacturing a denture, characterized in that, include: Stacking and replication processes, and hardening processes, In the stacking and replication process, (A) a light-cured denture base material with plastic deformability is stacked in a stacking target area selected from at least a portion of the base edge and at least a portion of the mucosal surface of a reference denture, wherein the reference denture has: (i) the mucosal surface as a surface opposite to the alveolar ridge mucosa, (ii) an abrasive surface as a surface capable of contacting at least one of the buccal mucosa and the tongue, and (iii) the base edge forming the boundary between the mucosal surface and the abrasive surface. then, (B1) After placing the reference denture, on which the light-cured denture base material is deposited, in the appropriate position within the patient's oral cavity, the mucosal shape within the patient's oral cavity is replicated to the light-cured denture base material, and edge formation is performed, thereby removing the remaining light-cured denture base material, or... (B2) After placing the reference denture, on which the light-cured denture base material is deposited, at an appropriate position on the virtual occlusal plane within the occlusal appliance containing the patient's intraoral model, the shape of the patient's intraoral model is copied to the light-cured denture base material, and edge forming is performed to remove the remaining light-cured denture base material. The hardening process is performed after the stacking and replication processes, which hardens the light-curing denture base material. When the light-curing denture base material is stacked in the stacking target area, the rope-shaped body taken out from the denture base material package according to claim 1 is used as the light-curing denture base material.

10. The method for manufacturing a denture according to claim 9, characterized in that, When the light-cured denture base material is deposited in a region including at least a portion of the base edge, the planar shape of the rope-like molded body defined by the groove is a shape corresponding to the planar shape of at least a portion of the base edge.

Images