Full-mouth planting mold taking and positioning structure

Abstract

The utility model relates to the technical field of oral equipment, in particular to a full-oral implant mold taking and positioning structure, which is characterized in that a plurality of positioning holes and a plurality of overflow holes are formed in a positioning tray, and the plurality of positioning holes are in one-to-one correspondence with an upper jaw / lower jaw implant abutment; the mold taking rod penetrates through the positioning hole to be connected to the upper jaw / lower jaw implant abutment, and the outer wall of the mold taking rod and the inner wall of the positioning hole are fixedly connected together through wax type resin, so that reduction of impression accuracy caused by movement of the mold taking rod during mold taking is prevented, and the time for fixedly connecting the mold taking rod in traditional chair-side operation is shortened. Meanwhile, the positioning tray is designed on the upper jaw to be attached to the mucous membrane at the palate fornix part, and the tray edge is designed on the lower jaw to be attached to the alveolar mucous membrane, so that the stability of the positioning tray is improved; and a high-fluidity impression material can be injected between the positioning tray and the alveolar ridge through the overflow hole, so that the impression material can be uniformly distributed in the reserved gap, and an accurate impression is prepared.

Description

Technical Field

[0001] The utility model relates to the technical field of oral appliances, in particular to a full-mouth implant impression-taking positioning structure. Background Art

[0002] In the past, the method for taking impressions after full-mouth implantation was as follows: First, make a preliminary impression in the mouth, then make an individual tray according to the preliminary impression. Before taking the final impression, it is necessary to first connect and fix the implant impression-taking rod with a bracket or rigid wire to prevent its position from changing, and then use the individual tray to take the final impression. This method is cumbersome to operate and the chairside operation time is relatively long. In addition, if the edentulous jaw is taken by a digital method alone, due to the lack of anatomical landmarks such as teeth as fixed reference points, clear images cannot be captured, and accurate impressions are often not obtained. Content of the Utility Model

[0003] In view of the above problems, the utility model discloses a full-mouth implant impression-taking positioning structure to solve the problems of cumbersome operation of the traditional impression-taking positioning structure and inability to obtain accurate impressions in the prior art.

[0004] The utility model discloses a full-mouth implant impression-taking positioning structure, including a positioning tray and an impression-taking rod;

[0005] The positioning tray is provided with a plurality of positioning holes and a plurality of overflow holes, and the plurality of positioning holes are arranged in one-to-one correspondence with the maxillary / mandibular implant abutments. The impression-taking rod passes through the positioning holes and is connected to the maxillary / mandibular implant abutments, and the outer wall of the impression-taking rod and the inner wall of the positioning holes are fixedly connected together by wax-type resin.

[0006] In some embodiments, the positioning tray is made of transparent resin.

[0007] In some embodiments, the diameter of the positioning hole is 4.5 - 5.5 mm.

[0008] In some embodiments, the diameter of the overflow hole is 1.8 - 2.2 mm.

[0009] In some embodiments, the thickness of the positioning tray is 2.5 - 3.5 mm.

[0010] In some embodiments, the gap between the positioning tray and the alveolar ridge is 3 mm.

[0011] In some embodiments, the positioning tray is a maxillary impression positioning tray, and the positioning tray fits the mucosa at the palatal vault.

[0012] In some embodiments, the positioning tray is a mandibular impression positioning tray, and the edge of the positioning tray fits the alveolar mucosa.

[0013] In some of these embodiments, the impression rod includes an impression rod body and an impression rod screw. The impression rod screw is sleeved inside the impression rod body, and the surface of the impression rod body has concave and convex grooves.

[0014] Compared with the prior art, the above-mentioned utility model has at least one of the following advantages or beneficial effects:

[0015] First, the full-mouth implant impression positioning structure provided by the present utility model is provided with positioning holes corresponding to the maxillary / mandibular implant abutments on the positioning tray, and the impression rod and the positioning tray are directly fixed with wax-type resin through the positioning holes to prevent the impression rod from moving during impression taking, which may cause a decrease in the accuracy of the impression, and shorten the time for the traditional chairside operation to fixedly connect the impression rod. At the same time, the positioning tray is designed to fit the mucosa at the palatal vault in the maxilla, and the tray edge is designed to fit the alveolar mucosa in the mandible, thereby increasing the stability of the positioning tray.

[0016] Second, the full-mouth implant impression positioning structure provided by the present utility model is provided with overflow holes on the positioning tray to inject a highly fluid impression material between the positioning tray and the alveolar ridge through the overflow holes, so that the impression material can evenly fill the reserved gap, and the positional relationship between the implants and the shape of the alveolar mucosa can be accurately obtained at the same time, simplifying the clinical operation steps and saving time. Compared with pure digital impressions, the accuracy of the impression and the restoration effect are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] By reading the detailed description of the non-limiting embodiments with reference to the following drawings, the present utility model and its features, appearance and advantages will become more obvious. The same reference numerals indicate the same parts in all the drawings. The drawings are not drawn to scale, and the emphasis is on showing the gist of the present utility model.

[0018] Figure 1 It is a schematic application diagram of the full-mouth implant impression positioning structure in the embodiment of the present utility model;

[0019] Figure 2 It is a schematic inner side view of the maxillary positioning tray in the embodiment of the present utility model;

[0020] Figure 3 It is a schematic outer side view of the maxillary positioning tray in the embodiment of the present utility model;

[0021] Figure 4 It is a schematic intraoral view of the maxillary implant abutment in the embodiment of the present utility model;

[0022] Figure 5 It is a schematic structural diagram of the impression rod in the embodiment of the present utility model;

[0023] Figure 6 Schematic structural diagram of the mold-taking rod body in the embodiment of the present utility model;

[0024] Figure 7 Schematic structural diagram of the mold-taking rod screw in the embodiment of the present utility model

[0025] Wherein, 1 is a positioning tray; 11 are positioning holes; 12 are overflow holes; 2 is a mold-taking rod; 21 is the mold-taking rod body; 22 is the mold-taking rod screw; 3 is an upper jaw implant abutment. Specific implementation manners

[0026] The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments, but it is not intended to limit the present utility model.

[0027] As Figures 1 to 7 shown, the present utility model discloses a full-mouth implant mold-taking positioning structure, including a positioning tray 1 and a mold-taking rod 2; the positioning tray 1 is provided with a plurality of positioning holes 11 and a plurality of overflow holes 12, and the plurality of positioning holes 11 are arranged in one-to-one correspondence with the upper jaw / lower jaw implant abutments. The mold-taking rod 2 passes through the positioning holes 11 and is connected to the upper jaw / lower jaw implant abutment, and is fixed by the mold-taking rod screw 22. The outer wall of the mold-taking rod 2 and the inner wall of the positioning holes 11 are fixedly connected together by wax-type resin.

[0028] When the above-mentioned positioning tray 1 is an upper jaw impression positioning tray, the positioning tray 1 fits with the mucosa at the palatal vault; specifically, the positioning holes 11 on the upper jaw impression positioning tray are arranged in one-to-one correspondence with the upper jaw implant abutment 3, and the mold-taking rod 2 passes through the positioning holes 11 and is connected to the upper jaw implant abutment 3;

[0029] When the above-mentioned positioning tray 1 is a lower jaw impression positioning tray, the edge of the positioning tray 1 fits with the alveolar mucosa; specifically, the positioning holes 11 on the lower jaw impression positioning tray are arranged in one-to-one correspondence with the lower jaw implant abutment, and the mold-taking rod 2 passes through the positioning holes 11 and is connected to the lower jaw implant abutment;

[0030] Preferably, the material of the above-mentioned positioning tray 1 is transparent resin. Specifically, the above-mentioned positioning tray 1 can be 3D printed using transparent resin material by using oral scan data; the diameter of the above-mentioned positioning holes 11 is 4.5 - 5.5 mm; the diameter of the above-mentioned overflow holes 12 is 1.8 - 2.2 mm; the thickness of the above-mentioned positioning tray 1 is 2.5 - 3.5 mm; the gap between the above-mentioned positioning tray 1 and the alveolar ridge is 3 mm.

[0031] As Figures 5 to 7As shown in the figure, the above-mentioned impression taking rod 2 includes an impression taking rod body 21 and an impression taking rod screw 22; the impression taking rod screw 22 is sleeved inside the impression taking rod body 21, and the impression taking rod body 21 is fixed to the implant abutment through the impression taking rod screw 22, and the surface of the impression taking rod body 21 has a concave-convex groove design to facilitate the fixation of the wax pattern resin.

[0032] Specifically, the present utility model designs the extension range of the positioning tray 1 (the edge of the positioning tray 1 extends to the labial and buccal mucosal fold, the posterior edge of the upper jaw extends to the posterior palatal fovea, and the posterior edge of the lower jaw extends to the posterior edge of the retromolar pad) and the position of the positioning holes 11 on the dental CAD software through the intraoral scan data. The positioning holes 11 can enable the impression taking rod 2 to pass through and be fixed thereon by using wax pattern resin, and the direction and position information of various implants can be obtained; and by injecting impression material (such as light body silicone rubber) from the overflow hole 12, the impression material can be evenly distributed in the remaining gaps, so as to make an accurate impression, shorten the chairside operation time, and improve the clinical diagnosis and treatment efficiency.

[0033] In a specific embodiment of the present utility model, the thickness of the above-mentioned positioning tray 1 is set to 3 mm. At the palatal vault of the upper jaw, the positioning tray 1 fits closely with the mucosa without gaps, and a certain gap is reserved between the tray and the alveolar ridge mucosa at other positions to accommodate the impression material. Specifically, this gap is 3 mm. The diameter of the positioning holes 11 of the positioning tray 1 is set to 5 mm, and the diameter of the overflow holes 12 is 2 mm. In actual application, the number of the positioning holes 11 and the overflow holes 12 can be increased or decreased according to needs.

[0034] Taking the impression taking of full-arch implants in the upper jaw as an example, when a dentist takes an impression of a full-arch implant patient clinically, the dentist can first design the positioning tray 1 on the dental CAD software by using the intraoral scan data of the patient, including the positioning holes 11, the extension range of the edge of the positioning tray 1, the size of the gap between the tray and the alveolar mucosa, the overflow holes 12 of the silicone rubber impression material, and the thickness of the positioning tray 1, etc.; then use transparent resin for 3D printing; then use the positioning holes 11 to accurately position the directions and positions of various implants, and use wax pattern resin to fix the impression taking rod 2 on the positioning holes 11 to ensure that the position of the impression taking rod 2 is stable and does not move. Then slowly inject a highly fluid impression material (such as light body silicone rubber) from the material overflow hole 12 into the gap between the tray and the soft tissue (alveolar ridge), and the position information between the implants and the accurate soft tissue morphology (the morphology of the alveolar mucosa) can be obtained simultaneously, which simplifies the clinical operation steps, shortens the chairside operation time, improves the impression accuracy, and further ensures the subsequent restoration effect.

[0035] Those skilled in the art should understand that those skilled in the art can achieve variations in combination with the prior art and the above embodiments, which will not be elaborated here. Such variations do not affect the essence of the present utility model and will not be elaborated here.

[0036] The preferred embodiments of the present utility model have been described above. It should be understood that the present utility model is not limited to the above specific embodiments, and the devices and structures not described in detail therein should be understood to be implemented in a common manner in the art; any person skilled in the art can, without departing from the scope of the technical solution of the present utility model, make many possible changes and modifications to the technical solution of the present utility model by using the methods and technical contents disclosed above, or modify it into an equivalent embodiment with equivalent changes, which does not affect the essence of the present utility model. Therefore, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present utility model without departing from the content of the technical solution of the present utility model still fall within the scope of protection of the technical solution of the present utility model.

Claims

1. A full-mouth implant impression positioning structure, characterized in that: Including positioning tray and mold removal rod; The positioning tray is provided with a plurality of positioning holes and a plurality of overflow holes, and the plurality of positioning holes are arranged in one-to-one correspondence with the maxillary / mandibular implant bases, the mold removal rod passes through the positioning holes and is connected to the maxillary / mandibular implant bases, and the outer wall of the mold removal rod and the inner wall of the positioning hole are fixedly connected together by wax pattern resin.

2. The full-mouth implant impression positioning structure according to claim 1, characterized in that: The positioning tray is made of transparent resin.

3. The full-mouth implant impression positioning structure according to claim 1, characterized in that: The diameter of the positioning hole is 4.5-5.5 mm.

4. The full-mouth implant impression positioning structure according to claim 1, characterized in that: The diameter of the overflow hole is 1.8-2.2 mm.

5. The full-mouth implant impression positioning structure according to claim 1, characterized in that: The positioning tray has a thickness of 2.5 to 3.5 mm.

6. The full-mouth implant impression positioning structure according to claim 1, characterized in that: The gap between the positioning tray and the alveolar ridge is 3 mm.

7. The full-mouth implant impression positioning structure according to claim 1, characterized in that: The positioning tray is a maxillary impression positioning tray, and the positioning tray is fitted with the mucosa at the palate vault.

8. The full-mouth implant impression positioning structure according to claim 1, characterized in that: The positioning tray is a mandibular impression positioning tray, and the edge of the positioning tray is in contact with the alveolar mucosa.

9. The full-mouth implant impression positioning structure according to claim 1, characterized in that: The die-taking rod comprises a die-taking rod body and a die-taking rod screw. The die-taking rod screw is sleeved in the die-taking rod body, and the die-taking rod body has concave-convex grooves on its surface.

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