Complete denture manufacturing method and complete denture

Abstract

The invention relates to the field of stomatology, and discloses a complete denture manufacturing method and a complete denture, the manufacturing method comprises the following steps: S1, obtaining clinically determined gingival lines of standard tooth forms of three different sizes, and arranging the gingival lines according to a central axis and central incisor coincidence mode; s2, connecting the sharp points of the top ends of the corresponding gingival lines of the three standard tooth forms to form a plurality of connecting lines, and connecting the plurality of connecting lines according to the trend of the outer gingival line of the middle tooth form of the standard tooth forms to form a radial corrugated curved surface; s3, adjusting the corrugated curved surface by referring to the gradient of the outer side gingival line and the inner side gingival line of the middle tooth form so as to form a gingival corrugated curved surface; s4, reversely obtaining a tooth form part model according to the gingival corrugated curved surface, and positioning a dental arch line of the patient on the tooth form part model to obtain a plurality of tooth widths; and S5, selecting a plurality of matched standard teeth in the standard tooth library according to the plurality of tooth widths, and arranging the plurality of standard teeth on the denture gum model to form a complete denture model.

Description

Technical Field

[0001] The present invention relates to the field of stomatology, and particularly to a manufacturing method for complete dentures and a complete denture. Background Art

[0002] At present, for patients with complete dentures, it takes about one to two weeks from making the oral mold to wearing their first pair of complete dentures. The long time will greatly affect the patient's nutritional supplement and quality of life during this period. Moreover, during this time, the oral cavity of the patient is not effectively controlled to adsorb the denture, which will also increase the uncertainty of wearing adaptation in the later stage.

[0003] Therefore, there is an urgent need for a manufacturing method for complete dentures and a complete denture to solve the above problems. Summary of the Invention

[0004] An object of the present invention is to provide a manufacturing method for complete dentures, which can improve the timeliness of manufacturing complete dentures on the basis of meeting the aesthetics and practicability of complete dentures.

[0005] With the above concept, the technical solution adopted by the present invention is as follows:

[0006] A manufacturing method for complete dentures is provided, including the following steps:

[0007] S1: Obtain the gingival lines of three different sizes of standard tooth shapes clinically recognized, and arrange them in a manner that the central axis and the central incisors coincide;

[0008] S2: Connect the apex points at the top of the corresponding gingival lines of the three standard tooth shapes to form a plurality of connecting lines, and connect the plurality of connecting lines with reference to the trend of the outer gingival line of the middle tooth shape of the standard tooth shape to form a radially corrugated curved surface;

[0009] S3: Adjust the corrugated curved surface with reference to the slopes of the outer gingival line and the inner gingival line of the middle tooth shape to form a gingival corrugated curved surface;

[0010] S4: Reverse-obtain the tooth shape part model according to the gingival corrugated curved surface, and locate the patient's dental arch line on the tooth shape part model to obtain a plurality of tooth widths;

[0011] S5: Select a plurality of standard teeth adapted in a standard tooth library according to the plurality of tooth widths, and arrange the plurality of standard teeth on a denture base model to form a complete denture model.

[0012] As a preferred scheme of the manufacturing method for complete dentures, in S2, it further includes optimizing the connecting lines of the apex points at the top of the corresponding gingival lines, so that the connecting lines of the corrugated curved surface at least connect the apex points at the top of the gingival line of the middle tooth shape.

[0013] As a preferred solution of the complete denture manufacturing method, in S2, the extension length of the connecting line of the corrugated curved surface is L, and 15 mm ≤ L ≤ 25 mm.

[0014] As a preferred solution of the complete denture manufacturing method, in S4, the patient's dental arch line is formed according to multiple apical stress points of the patient's dental bed.

[0015] As a preferred solution of the complete denture manufacturing method, in S4, the patient's dental arch line is positioned on the dental shape part model according to at least three positioning points, and the at least three positioning points include the dental arch midline and two dental arch endpoints.

[0016] As a preferred solution of the complete denture manufacturing method, in S5, according to the adaptability of the upper teeth and the lower teeth, the standard teeth of the upper teeth and the standard teeth of the lower teeth can be obtained simultaneously.

[0017] As a preferred solution of the complete denture manufacturing method, in S5, it further includes arranging the selected multiple standard teeth according to the patient's gingival line.

[0018] As a preferred solution of the complete denture manufacturing method, in S5, it further includes obtaining the patient's dental mold and optimizing it to obtain the denture dental bed model.

[0019] As a preferred solution of the complete denture manufacturing method, it further includes S6: filling the dental shape part model with gingival color material to obtain a disk body with a gingival part model, and processing the disk body according to the complete denture model to form a complete denture.

[0020] Another object of the present invention is to provide a complete denture, which can improve the timeliness of complete denture manufacturing on the basis of meeting the aesthetics and practicality of the complete denture.

[0021] With the above concept, the technical solution adopted by the present invention is:

[0022] Provide a complete denture, which is manufactured according to the above-mentioned complete denture manufacturing method.

[0023] The beneficial effects of the present invention are:

[0024] The full denture manufacturing method proposed by the present invention includes the following steps: S1: Obtain the gingival lines of three different sizes of standard tooth shapes clinically recognized, and arrange them in a manner where the central axis and the central incisors coincide; S2: Connect the apex points at the top of the corresponding gingival lines of the three standard tooth shapes to form multiple connecting lines, and refer to the trend of the outer gingival line of the middle tooth shape to connect the multiple connecting lines to form a radially corrugated curved surface; S3: Adjust the corrugated curved surface with reference to the slopes of the outer gingival line and the inner gingival line of the middle tooth shape to form a gingival corrugated curved surface; S4: Obtain the tooth shape part model in reverse according to the gingival corrugated curved surface, and position the patient's dental arch line on the tooth shape part model to obtain multiple tooth widths; S5: Select multiple standard teeth adapted in the standard tooth library according to the multiple tooth widths, and arrange the multiple standard teeth on the denture base model to form a full denture model. This full denture manufacturing method uses the clinically recognized standard tooth shapes to fit and obtain the gingival corrugated curved surface, which is more in line with the actual patient's dental bed. And only the tooth shape part model is designed, while the gingival part model can be manufactured into various sizes of dental beds according to the patient's needs in subsequent processing. Selecting standard teeth based on the patient's dental arch line can also ensure that the stress points of the denture coincide with the patient's dental bed. In addition, the outer gingival line of the standard tooth shape is often lower than the inner gingival line. Therefore, when designing the full denture model, the outer gingival part of the gingival corrugated curved surface is designed as a flat surface according to the actual standard tooth shape, and the inner gingival part presents a slope, which can also ensure the aesthetics of the tooth shape part model. This full denture manufacturing method can obtain the tooth shape part model in advance according to the gingival corrugated curved surface. When obtaining the patient's dental mold, the tooth widths of the full denture can be obtained by getting the patient's dental arch line, and then tooth arrangement and manufacturing can be carried out, so that the patient can get a pair of trialable full dentures in a short time, and the timeliness is higher.

[0025] The full denture proposed by the present invention is manufactured according to the above full denture manufacturing method, and can improve the timeliness of full denture manufacturing on the basis of meeting the aesthetics and practicality of the full denture. Description of the Drawings

[0026] Figure 1 is a flowchart of the full denture manufacturing method provided by an embodiment of the present invention;

[0027] Figure 2 is an arrangement diagram of the gingival lines of three standard tooth shapes provided by an embodiment of the present invention;

[0028] Figure 3 is a gingival corrugated curved surface diagram from the first perspective provided by an embodiment of the present invention;

[0029] Figure 4 is a gingival corrugated curved surface diagram from the second perspective provided by an embodiment of the present invention;

[0030] Figure 5 is a tooth shape part model diagram from the third perspective provided by an embodiment of the present invention;

[0031] Figure 6 It is a model diagram of the tooth-shaped part from the fourth perspective provided by an embodiment of the present invention;

[0032] Figure 7 It is a layout diagram of the patient's dental arch line on the tooth-shaped part model provided by an embodiment of the present invention;

[0033] Figure 8 It is a perspective view of the disc body provided by an embodiment of the present invention;

[0034] Figure 9 It is a 3D anatomical schematic diagram of the disc body provided by an embodiment of the present invention;

[0035] Figure 10 It is a schematic diagram of the arrangement of the disc body applicable to tooth shapes of different sizes provided by an embodiment of the present invention.

[0036] In the figure:

[0037] 1. Gingival line of large tooth type; 2. Gingival line of medium tooth type; 3. Gingival line of small tooth type; 4. Patient's dental arch line; 41. Midline of dental arch; 42. End point of dental arch;

[0038] 10. Gingival corrugated surface; 101. Connecting line; 20. Disc body; 201. Tooth-shaped part model; 202. Gingival part model. Detailed implementation manners

[0039] To make the technical problems solved by the present invention, the technical solutions adopted and the achieved technical effects clearer, the technical solutions of the present invention will be further described below with reference to the accompanying drawings and through specific implementation manners. It can be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. Additionally, it should be noted that for the sake of convenience of description, only parts related to the present invention are shown in the drawings rather than all of them.

[0040] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In the present invention, unless otherwise clearly specified or limited, the first feature being "on" or "under" the second feature may include direct contact between the first and second features, or may include the first and second features not being in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is less than that of the second feature.

[0042] In the description of this embodiment, the orientation or positional relationships such as "up", "down", "left", "right" and the like are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0043] The technical solution of the present invention will be further described below in conjunction with the drawings and through specific embodiments.

[0044] Refer to Figures 1 to 10 , this embodiment provides a method for manufacturing a complete denture, including the following steps. S1: Obtain three standard tooth shapes of different sizes recognized clinically, denoted as the large tooth shape, the medium tooth shape and the small tooth shape, and arrange the gingival lines 1 of the large tooth shape, the gingival lines 2 of the medium tooth shape and the gingival lines 3 of the small tooth shape in a manner that the central axes and the central incisors coincide; S2: Connect the apex points at the top of the corresponding gingival lines of the three standard tooth shapes to form a plurality of connecting lines 101, and connect the plurality of connecting lines 101 with reference to the trend of the outer gingival line of the medium tooth shape to form a radially corrugated curved surface; S3: Adjust the corrugated curved surface with reference to the slopes of the outer gingival line and the inner gingival line of the medium tooth shape to form a gingival corrugated curved surface 10; S4: Reverse-obtain the tooth shape part model 201 according to the gingival corrugated curved surface 10, and locate the patient's dental arch line 4 on the tooth shape part model 201 to obtain a plurality of tooth widths; S5: Select a plurality of standard teeth adapted in a standard tooth library according to the plurality of tooth widths, and arrange the plurality of standard teeth on a denture base model to form a complete denture model.

[0045] The full denture manufacturing method provided by this embodiment uses a clinically recognized standard tooth shape fitting to obtain a gingival corrugated surface 10 that better fits the actual patient's dental bed. Only the tooth shape part model 201 is designed, while the gingival part model 202 can be manufactured in various sizes according to the patient's needs during subsequent processing. Selecting standard teeth based on the patient's dental arch line 4 can also ensure that the stress points of the denture fit the patient's dental bed. In addition, the outer gingival line of the standard tooth shape is often lower than the inner gingival line. Therefore, when designing the full denture model, the outer gingival part of the gingival corrugated surface 10 is designed as a flat surface according to the actual standard tooth shape, and the inner gingival part presents a slope, which can also ensure the aesthetics of the tooth shape part model 201. The full denture manufacturing method provided by this embodiment can obtain the tooth shape part model 201 according to the gingival corrugated surface 10 in advance. When obtaining the patient's dental mold, the tooth width of the full denture can be obtained by getting the patient's dental arch line 4, and then tooth arrangement and manufacturing can be carried out, so that the patient can get a pair of trial-wearable full dentures in a short time, with higher timeliness.

[0046] In S2, it also includes optimizing the connection line 101 of the apex points corresponding to the top of the gingival line, so that the connection line 101 of the corrugated surface connects at least the apex points of the gingival line at the top of the middle tooth shape. According to the shape of the standard tooth shape, the corrugated surface has a plurality of sequentially connected corrugated surfaces, and the connection part between adjacent corrugated surfaces is the connection line 101 of the corrugated surface, that is, the connection line 101 formed by connecting the apex points corresponding to the top of the gingival line. In this embodiment, the standard tooth shape is set to three. Specifically, when implemented, the apex points corresponding to the top of the gingival line of the three standard tooth shapes may not all be able to form a straight line, while the connection line 101 of the corrugated surface is a straight line. Therefore, the connection line 101 can be optimized to meet the aesthetic and actual requirements. When optimizing the connection line 101 of the corrugated surface, the standard that the connection line 101 of the corrugated surface connects at least the apex points of the gingival line at the top of the middle tooth shape can be referred to.

[0047] In S2, the extension length of the connection line 101 of the corrugated surface is L, and 15mm ≤ L ≤ 25mm. The extension length of the connection line 101 of the corrugated surface affects the size of the tooth shape part model 201. The size range of the tooth shape part model 201 should be able to adapt to the shape of the actual patient's dental bed to ensure that the tooth shape part model 201 becomes the tooth body of the full denture through subsequent processing, and this tooth body is implanted on the denture dental bed.

[0048] In S4, the patient's dental arch line 4 is formed according to multiple top stress points of the patient's dental bed. When obtaining the patient's dental mold, multiple top stress points on the patient's dental bed model can be marked, and the marked stress points can also be adjusted according to actual needs.

[0049] In S4, the patient's dental arch line 4 is positioned on the dental shape part model 201 according to at least three positioning points, and the at least three positioning points include the dental arch midline 41 and two dental arch endpoints 42. As Figure 7 shown, since the patient's dental arch line 4 is not necessarily a standard dental arch line, there may be an obvious bias when positioning the patient's dental arch line 4 on the dental shape part model 201, resulting in inconsistent sizes of each tooth. The tooth width of each tooth can be obtained based on the positioning of the patient's dental arch line 4 on the dental shape part model 201, and the standard tooth corresponding to the obtained tooth width can be selected by obtaining the tooth width.

[0050] In S5, according to the adaptability of the upper teeth and the lower teeth, the standard teeth of the upper teeth and the standard teeth of the lower teeth can be obtained simultaneously. In specific implementation, if the above operations are first performed on the upper teeth for the standard tooth type, the tooth width of each tooth of the patient's upper teeth can be obtained, and thus the standard teeth of the upper teeth corresponding to the tooth width can be obtained. According to the adaptability of the upper teeth and the lower teeth in the tooth library, the standard teeth of the lower teeth with adaptability are obtained simultaneously.

[0051] In S5, when arranging the selected standard teeth, they can be arranged according to the patient's gum line, and multiple standard teeth of the upper teeth and multiple standard teeth of the lower teeth can be arranged simultaneously. When obtaining the patient's dental mold, the patient's gum line is obtained, and arranging the standard teeth according to the patient's gum line can make the stress points more suitable for the patient's dental bed when the upper teeth and the lower teeth bite.

[0052] In S5, it also includes obtaining the patient's dental mold and optimizing it to obtain the denture dental bed model. The patient's dental mold can be scanned into the tooth arrangement software for optimization and repair to obtain the denture dental bed model, and then the arranged standard teeth are arranged on the denture dental bed model in the tooth arrangement software to obtain the complete denture model.

[0053] Furthermore, the complete denture manufacturing method further includes S6: filling the dental shape part model 201 with gum-colored material to obtain a disk 20 with a gum part model 202, and processing the disk 20 according to the complete denture model to form a complete denture. The aforementioned dental shape part model 201 is placed in the mold of the disk 20, and then the gum-colored material is injected for filling, and the disk 20 with the gum part model 202 can be obtained. The gum part models 202 are all gum-colored, and the dental shape part models 201 are all tooth-colored. In this solution, the dental bed of the complete denture is obtained by cutting the gum part model 202, and the denture of the complete denture is obtained by cutting the dental shape part model 201, that is, except for the denture, the other parts of the complete denture are all gum-colored, which is also more in line with the distribution of tooth color and gum color in the actual oral cavity and has higher aesthetics.

[0054] As Figure 9As shown, when machining the disk body 20, the gum part model 202 can be cut according to the denture gum model to obtain a denture gum adapted to the patient. Then, the tooth shape part model 201 can be cut according to the arrangement position of the standard teeth on the denture gum model to obtain a denture integrally formed with the denture gum. The size of the denture is the size of the selected standard teeth, and the setting position of the denture is the selected tooth arrangement position.

[0055] As Figure 10 shown, in this embodiment, since the size of the tooth shape part model 201 is set such that the radial length is between 15 mm and 25 mm, that is, the extension length of the aforementioned connection line 101, when cutting the tooth shape part model 201 to obtain a denture, the tooth shape part model 201 has sufficient space to cut a denture adapted to different sizes of dental arch lines to meet the needs of different patients.

[0056] This embodiment also provides a complete denture, which is manufactured according to the above-mentioned complete denture manufacturing method. The complete denture uses a clinically recognized standard tooth shape to fit and obtain a gum corrugated surface 10 that is more in line with the actual patient's gum. Only the tooth shape part model 201 is designed, and the gum part model 202 can be manufactured in various sizes according to the patient's needs during subsequent processing. Selecting standard teeth based on the patient's dental arch line 4 can also ensure that the stress points of the denture fit the patient's gum. In addition, the outer gum line of the standard tooth shape is often lower than the inner gum line. Therefore, when designing the complete denture model, the outer gum part of the gum corrugated surface 10 is designed as a flat surface according to the actual standard tooth shape, and the inner gum part presents a slope, which can also ensure the aesthetics of the tooth shape part model 201. When manufacturing the complete denture, the tooth shape part model 201 can be obtained in advance according to the gum corrugated surface 10. When obtaining the patient's dental mold, the tooth width of the complete denture can be obtained by obtaining the patient's dental arch line 4, and then tooth arrangement and manufacturing can be carried out, so that the patient can obtain a pair of trialable complete dentures in a short time, and the timeliness is higher.

[0057] The above embodiments only illustrate the basic principles and characteristics of the present invention. The present invention is not limited by the above embodiments. Without departing from the spirit and scope of the present invention, there are various changes and modifications to the present invention, and these changes and modifications all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for manufacturing complete dentures, characterized in that, It includes the following steps: S1: Obtain the gingival lines of three different-sized standard tooth shapes clinically recognized, and arrange them in a manner where the central axis coincides with the central incisor; S2: Connect the apex points of the corresponding gingival line tops of the three standard tooth shapes to form a plurality of connecting lines (101), and connect the plurality of connecting lines (101) with reference to the outer gingival line trend of the middle tooth shape of the standard tooth shape to form a radially corrugated surface; S3: Adjust the corrugated surface with reference to the slopes of the outer gingival line and the inner gingival line of the middle tooth shape to form a gingival corrugated surface (10); S4: Reverse-obtain a tooth shape part model (201) according to the gingival corrugated surface (10), and position the patient's dental arch line (4) on the tooth shape part model (201) to obtain a plurality of tooth widths; S5: Select a plurality of suitable standard teeth from a standard tooth library according to the plurality of tooth widths, and arrange the plurality of standard teeth on a denture base model to form a complete denture model.

2. The complete denture manufacturing method according to claim 1, characterized in that, In S2, it also includes optimizing the connecting lines (101) of the apex points of the corresponding gingival line tops so that the connecting lines (101) of the corrugated surface connect at least the apex points of the gingival line tops of the middle tooth shape.

3. The method for manufacturing a complete denture according to claim 2, characterized in that, In S2, the extension length of the connecting lines (101) of the corrugated surface is L, and 15 mm ≤ L ≤ 25 mm.

4. The full denture manufacturing method according to claim 1, characterized in that, In S4, the patient's dental arch line (4) is formed according to a plurality of top force points on the patient's dental bed.

5. The complete denture manufacturing method according to claim 1, characterized in that, In S4, the patient's dental arch line (4) is positioned on the tooth shape part model (201) according to at least three positioning points, and the at least three positioning points include the dental arch midline (41) and two dental arch endpoints (42).

6. The method for manufacturing a complete denture according to claim 1, characterized in that, In S5, according to the adaptability of the upper teeth and the lower teeth, the standard teeth of the upper teeth and the standard teeth of the lower teeth can be obtained simultaneously.

7. The full denture manufacturing method according to claim 1, characterized in that, In S5, it also includes arranging the selected plurality of standard teeth according to the patient's gingival line.

8. The complete denture manufacturing method according to claim 7, characterized in that, In S5, it also includes obtaining a patient's dental mold and optimizing it to obtain a denture base model.

9. The method for manufacturing a complete denture according to claim 8, wherein It also includes S6: Fill the tooth shape part model (201) with gingival color material to obtain a disk body (20) with a gingival part model (202), and process the disk body (20) according to the complete denture model to form a complete denture.

10. Complete denture, characterized in that, Manufactured by the complete denture manufacturing method according to any one of claims 1 to 9.

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