Split type jaw position relation recording tray
By designing a split jaw position relationship recording tray, using the assembly method of arcuate grooves and hole protrusion structures, the problem that existing trays cannot accurately obtain the demarcation plane position of the dentures is achieved, and higher denture production accuracy is achieved.
Patent Information
- Application Number
- CN202420788796.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-16
- Publication Date
- 2025-04-08
- Estimated Expiration
- 2034-04-16
AI Technical Summary
The existing jaw position relationship recording tray cannot accurately obtain the boundary plane position of the upper and lower full-mouth denture dentures, resulting in errors in denture production.
A split jaw position relationship recording tray is designed, including the upper tray body and the lower tray body. The upper and lower tray bodies are assembled through arcuate grooves and hole protruding structures, so as to facilitate accurate acquisition of jaw position relationship information.
Through the split design, the position of the occlusion plane and the position information about 1 mm below the upper lip can be accurately determined, improving the accuracy and quality of denture production.
Smart Images
Figure CN222723154U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of oral medicine, and in particular relates to a split jaw position relationship recording tray. Background Art
[0002] When all natural teeth in the mouth are missing, full dentures (commonly known as full dentures) are often required for restoration. When all natural teeth above (or below) are missing, upper half (lower half) dentures are often required for restoration. However, whether it is a full denture or a half denture, it cannot be made in the patient's mouth. It is necessary to make a dental mold in the patient's mouth (now mostly using digital intraoral scanning to obtain a digital model of the alveolar ridge), and record and transfer the relative position relationship of the patient's upper and lower alveolar ridges (commonly known as gums) in the mouth (called jaw relationship) and transfer it to the outside of the mouth, and reproduce this relative position relationship on the dental mold. At the same time, it is necessary to obtain information such as the boundary plane (called jaw plane) used to guide the upper and lower denture teeth, the protrusion of the upper front teeth of the denture (determines the fullness of the upper lip support), and the position of the upper incisor below the upper lip (determines the exposure of the upper incisor below the upper lip when smiling), so that a full or half denture can be made on the dental mold. In order to transfer the relative spatial position of the alveolar ridge in the mouth to the dental model, a medium device called a "jaw relationship recording tray" is required.
[0003] However, existing jaw relationship recording trays are all designed as an integrated upper and lower part. When using an integrated jaw relationship recording tray to record the jaw relationship of the patient's upper and lower alveolar ridges, place an appropriate amount of silicone rubber on the upper and lower parts of the jaw relationship recording tray; place the jaw relationship recording tray filled with silicone rubber in the patient's mouth, and ask the patient to bite naturally to a suitable position, and then keep it still and wait for the silicone rubber to solidify. Then, scan the obtained silicone rubber integrated jaw relationship record, and align the digital dental model on the record to obtain the jaw relationship of the alveolar ridge.
[0004] However, there are deficiencies in the jaw relationship information obtained by the existing integrated jaw relationship recording tray. The first deficiency: the boundary (i.e., plane) of the upper and lower full dentures cannot be accurately obtained. In the natural state, the plane is an imaginary plane about 1 mm below the upper lip and parallel to the plane of the nasal wing and tragus. When making a full denture, it is necessary to obtain the position of this plane as the dividing plane for arranging the upper and lower teeth. However, the position of this plane cannot be accurately obtained using the existing integrated jaw relationship recording tray.
[0005] The second shortcoming: due to the support of the handle, the lips are pouty, and it is impossible to confirm the appropriate protrusion of the upper lip, and it is also impossible to obtain reference information on the protrusion of the subsequent arrangement of the upper front teeth.
[0006] The third shortcoming: Due to the one-piece design, the handle extends from between the upper and lower lips, and it is impossible to accurately obtain the position about 1mm below the upper lip in the natural state (this position is the position of the lower edge of the maxillary central incisor (commonly known as the upper front teeth) in the natural state). Therefore, a more ideal medium instrument is urgently needed to obtain the above information accurately. Utility Model Content
[0007] The utility model aims to provide a split jaw position relationship recording tray, which solves the problem that the existing integrated jaw position relationship recording tray cannot accurately obtain the position of the dividing plane.
[0008] The utility model is realized by the following technical solutions:
[0009] A split jaw relationship recording tray comprises an upper tray body and a lower tray body, wherein the upper tray body and the lower tray body are detachably connected;
[0010] The upper surface of the upper tray body and the lower surface of the lower tray body are prefabricated with arc-shaped grooves, and the arc-shaped grooves are used to place silicone rubber.
[0011] Furthermore, a plurality of holes are prefabricated on the lower surface of the upper tray body, and a plurality of protrusions are prefabricated on the upper surface of the lower tray body to fit in with the holes of the upper tray body; the holes and the protrusions form a mortise and tenon structure.
[0012] Furthermore, a handle is detachably connected to the outer end of the upper tray body or the lower tray body.
[0013] Furthermore, a perforated plate is prefabricated on the inner side of the upper tray body, and a plurality of holes are prefabricated on the perforated plate.
[0014] Furthermore, mounting grooves are prefabricated at the outer ends of the upper tray body and the lower tray body, and the handles are embedded in the mounting grooves.
[0015] Furthermore, both the upper tray body and the lower tray body are arc-shaped bodies matching the lip shape, and the two arc-shaped bodies have the same curvature.
[0016] Furthermore, the upper tray body and the lower tray body are both made of plastic.
[0017] Furthermore, the edges of the upper tray body and the lower tray body are rounded.
[0018] Compared with the prior art, the utility model has the following beneficial technical effects:
[0019] The utility model discloses a split jaw position relationship recording tray, which adopts a split design and is divided into an upper and lower tray. It can accurately determine the position of the occlusal plane, so as to guide the arrangement of the boundary of the upper and lower jaw teeth in the later stage, which cannot be obtained by using the existing integrated central jaw tray. The utility model adopts a split jaw position relationship recording tray design, which can accurately obtain the position information of about 1mm below the upper lip, and provides an accurate reference for the subsequent determination of the lower edge position of the upper front incisors.
[0020] Furthermore, by designing the cavity on the lower surface of the upper tray body and the protrusion on the upper surface of the lower tray body, the cavity and the protrusion form a mortise and tenon structure, thereby realizing the assembly of the upper tray body and the lower tray body, the structure is simple, and it is convenient for doctors to use on site.
[0021] Furthermore, the utility model adopts a handle design that can be assembled and easily disassembled, which completely avoids the influence of the integrated center tray handle on the lips, can accurately determine the upper lip support fullness information, and provides an accurate reference for the protrusion of the final denture upper front teeth arrangement.
[0022] Furthermore, a perforated plate is prefabricated on the arc inner side of the upper tray body, and a plurality of hole structures are designed on the perforated plate. The arc groove and the hole structure can allow the silicone rubber to be embedded. When the silicone rubber is solidified, the tray body and the silicone rubber are embedded together, which can further prevent the two from being peeled off. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 This is a structural diagram of a split jaw relationship recording tray of the utility model;
[0024] Figure 2a It is a schematic diagram of the structure after the upper tray body and the lower tray body are embedded;
[0025] Figure 2b For Figure 2a A structural diagram of a hole plate is added on the basis of the structure;
[0026] Figure 3 It is a schematic diagram of the connection between the tray body and the handle;
[0027] Among them, 1. upper tray body; 2. lower tray body; 3. handle; 4. orifice plate;
[0028] 11. Cavity; 12. Arc-shaped groove; 13. Mounting groove;
[0029] 21. Bump. DETAILED DESCRIPTION
[0030] In order to make the purpose, technical solution and advantages of the utility model clearer, the following is further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model, that is, the embodiments described are only part of the embodiments of the utility model, not all of the embodiments.
[0031] The components described and shown in the drawings and embodiments of the present invention can be arranged and designed in various different configurations. Therefore, the detailed description of the embodiments of the present invention provided in the following drawings is not intended to limit the scope of the claimed invention, but merely represents a selected embodiment of the present invention. Based on the drawings and embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the protection scope of the present invention.
[0032] It should be noted that the terms "comprises", "includes" or any other variations are intended to cover non-exclusive inclusion, so that a process, element, method, article or equipment that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to the process, element, method, article or equipment.
[0033] The features and performance of the present invention are further described in detail below in conjunction with the embodiments.
[0034] like Figure 1-3 As shown, the utility model discloses a split jaw relationship recording tray, comprising an upper tray body 1 and a lower tray body 2, and the outer ends of the two tray bodies are detachably connected with handles 3. The upper tray body 1 and the lower tray body 2 are detachably connected, can be assembled together, and can also be conveniently separated.
[0035] Both tray bodies are arc-shaped bodies matching the lip shape, the lower surface of the upper tray body 1 is a plane, and the upper surface of the lower tray body 2 is also a plane. Figure 1 As shown, a plurality of holes 11 are designed on the lower surface of the upper tray body 1, and a plurality of protrusions 21 are designed on the upper surface of the lower tray body 2 to fit exactly with the holes 11 of the upper tray body 1. Figure 2a As shown, the upper and lower tray bodies 2 can be completely assembled together and fit tightly by fitting the cavity 11 and the protrusion 21 together to form a mortise and tenon structure. Of course, the cavity 11 structure and the protrusion 21 structure are interchangeable.
[0036] The upper surface of the upper tray body 1 and the lower surface of the lower tray body 2 are designed with arc grooves 12, such as Figure 2bAs shown, a perforated plate 4 is prefabricated on the arc inner side of the upper tray body 1, and a plurality of hole structures are designed on the perforated plate 4. The arc groove 12 and the hole structure can allow the silicone rubber to be embedded. When the silicone rubber is solidified, the tray body and the silicone rubber are embedded together to prevent the two from being peeled off.
[0037] like Figure 3 As shown, the outer end of the upper tray body 1 is designed with a mounting groove 13, which can be exactly fitted with the handle 3, and the handle 3 can be easily pulled out. The handle 3 is convenient for the doctor to hold, and after being placed in the patient's mouth, it can be pulled out without affecting the closure of the patient's lips.
[0038] The utility model is a split jaw relationship recording tray. When in use, the specific steps are as follows:
[0039] S1. Mix an appropriate amount of heavy silicone rubber and place it in the arc-shaped groove 12 of the upper tray body 1; place the silicone rubber in the patient's mouth with the patient's maxillary alveolar ridge facing the occlusal plane plate, with the occlusal fork of the occlusal plane plate close to the lower surface of the upper tray body 1, press the occlusal plane plate upwards gently and slowly, observe whether the wing plate of the occlusal plane plate is parallel to the bilateral nasal alar and tragus line, and observe whether the lower surface of the front end of the upper tray body 1 is located about 1mm below the upper lip.
[0040] S2. When pressed to the expected position, keep still and wait for the silicone rubber to solidify. Then take out the upper tray body 1 and the connected silicone rubber from the mouth. If necessary, remove or add the silicone rubber in the anterior tooth area to make the upper lip support achieve a satisfactory facial shape. At this time, the protrusion of the upper tray body 1 and the silicone rubber is the protrusion of the upper anterior teeth to be arranged subsequently.
[0041] Observe whether the wing plate of the occlusal plane is parallel to the bilateral nasal wing and tragus line, specifically:
[0042] When the alar plate of the occlusal plane is parallel to the alar-tragus line, keep this position. The red dot is the midpoint of the alar, the yellow dot is the midpoint of the tragus, and the line connecting the two is the alar-tragus line. When both alar-tragus lines are parallel to the alar plates of the occlusal plane, the plane represented by the occlusal plane is the dividing plane of the upper and lower teeth when the artificial teeth are arranged later.
[0043] S3, the upper tray body 1 and the silicone rubber are located in the mouth, the silicone rubber is placed in the arc groove 12 of the lower tray body 2, and put into the mouth, and the cavity 11 of the upper tray body 1 and the protrusion 21 of the lower tray body 2 are embedded together.
[0044] Instruct the patient to bite slowly and gently to the position that the doctor considers appropriate and keep it still until the silicone rubber solidifies. At this time, the position recorded by the upper tray body 1, the lower tray body 2 and the silicone rubber is the jaw position relationship of the upper and lower alveolar ridges of the edentulous jaw.
[0045] S4. Model matching
[0046] Take out the upper tray body 1, the lower tray body 2 and the silicone rubber respectively embedded therewith, and scan to obtain the digital model of the silicone rubber (equivalent to the digital jaw position relationship, which also includes the jaw plane information, the position about 1mm below the upper lip, the upper lip support degree and other information);
[0047] By matching it with the digital models of the upper and lower alveolar ridges obtained in advance, the jaw position relationship of the upper and lower alveolar ridges of the edentulous jaw can be obtained.
[0048] The upper and lower tray bodies embedded together and the silicone rubbers respectively embedded therewith can be separated into upper and lower parts by opening the embedding of the upper and lower tray bodies.
[0049] By matching the edentulous jaw digital model and jaw relationship with the patient's facial scan model, it can be seen that the jaw plane recorded by the split jaw relationship recording tray is completely parallel to the nasal wing and tragus line.
[0050] It can be seen from the description of the above specific scheme that the use of the split jaw relationship recording tray can obtain accurate jaw plane information, the position about 1mm below the upper lip, the upper lip support fullness information, and the jaw relationship of the upper and lower alveolar ridges. Compared with the existing one-piece centromandibular tray, the above information obtained is more accurate and more conducive to guiding the demarcation of the upper and lower artificial teeth of the subsequent full denture, the length of the maxillary central incisor (commonly known as the front teeth) under the upper lip, and the measurement of the fullness of the lip support by the arrangement position of the maxillary anterior teeth. Combined with the edentulous jaw digital model and the facial scanning model, the full denture can be designed and produced for the patient. It basically realizes the full digital design and production of full dentures, completely eliminating the cumbersome steps of traditional plaster models and hand-made dentures.
[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the utility model can still be modified or replaced by equivalents, and any modification or equivalent replacement that does not depart from the spirit and scope of the utility model should be included in the scope of protection of the claims of the utility model.
Claims
1. A split jaw relationship recording tray, characterized in that: It comprises an upper tray body (1) and a lower tray body (2), wherein the upper tray body (1) and the lower tray body (2) are detachably connected; The upper surface of the upper tray body (1) and the lower surface of the lower tray body (2) are prefabricated with arc-shaped grooves (12), and the arc-shaped grooves (12) are used to place silicone rubber; A plurality of holes (11) are prefabricated on the lower surface of the upper tray body (1), and a plurality of protrusions (21) are prefabricated on the upper surface of the lower tray body (2) to fit into the holes (11) of the upper tray body (1); the holes (11) and the protrusions (21) form a mortise and tenon structure; A perforated plate (4) is also prefabricated on the inner side of the upper tray body (1), and a plurality of holes are prefabricated on the perforated plate (4).
2. A split jaw relationship recording tray according to claim 1, characterized in that: A handle (3) is detachably connected to the outer end of the upper tray body (1) or the lower tray body (2).
3. A split jaw relationship recording tray according to claim 1, characterized in that: Mounting grooves (13) are prefabricated at the outer ends of the upper tray body (1) and the lower tray body (2), and the handle (3) is embedded in the mounting groove (13).
4. A split jaw relationship recording tray according to claim 1, characterized in that: The upper tray body (1) and the lower tray body (2) are both arc-shaped bodies matching the lip shape, and the two arc-shaped bodies have the same curvature.
5. The split jaw relationship recording tray according to claim 1, characterized in that: The upper tray body (1) and the lower tray body (2) are both made of plastic.
6. A split jaw relationship recording tray according to claim 1, characterized in that: The edges of the upper tray body (1) and the lower tray body (2) are both rounded.