A method for making a dental restoration with low food impaction

Abstract

The application discloses a kind of low food jam rate's oral prosthetic tooth manufacturing method, applied to medical health field, comprising: obtaining the full surface three-dimensional data of tooth to be repaired area;Based on full surface three-dimensional data, the complete three-dimensional form of prosthesis is designed, and filling hole type is designed on the proximal surface area of prosthesis and tooth abutment, and the three-dimensional data of prosthesis is obtained;Based on the three-dimensional data of prosthesis, prosthesis is made, filling hole type is filled when in-mouth trial is carried out and adjusted in position, and the final prosthesis is obtained.The application designs filling hole type on the proximal surface area of prosthesis and tooth abutment in the design process of the complete three-dimensional form of prosthesis, and filling hole type is filled when in-mouth trial of prosthesis is carried out and adjusted in position, so that the relative position relationship of the abutment surface of prosthesis and adjacent tooth is close to the same level of the abutment relationship of teeth naturally and normally grown, and food jam possibly occurred after permanent bonding of prosthesis is maximized avoided.

Description

Technical Field

[0001] This invention relates to the field of medical and health care, and in particular to a method for manufacturing oral prostheses with low food impaction rate. Background Technology

[0002] Currently, various fixed dental prostheses used to treat missing teeth, such as natural tooth supports and implant supports, often suffer from cumulative errors in the design and manufacturing process. This often results in the contact area, strength, and position with the remaining teeth failing to meet the expected design requirements after placement. This easily leads to vertical food impaction, primarily manifesting as food fibers instantly becoming trapped between the prosthesis and adjacent teeth when chewing fibrous foods. This causes pain, discomfort, interproximal caries, gingivitis, and periodontitis. If not cleaned regularly, it is one of the root causes of alveolar bone loss in the interproximal area, periodontal abscesses, tooth loosening and loss, peri-implant disease, and implant failure. This problem is particularly prominent in implant restorations.

[0003] In existing technologies, the proximal surfaces of prostheses are fabricated as a whole before the dentures are placed in place. However, errors can occur at each stage, from scanning and design to fabrication and final placement. These cumulative errors can cause the dentures to fail to be accurately positioned as expected. Even if they are positioned accurately, the relative position between the proximal surfaces and adjacent teeth may not reach the same level as that of naturally growing teeth due to issues such as loosening or partial defects. This can easily lead to food impaction.

[0004] Therefore, how to provide a method for fabricating oral prostheses that can make the relative positional relationship between the proximal surface of the prosthesis and the adjacent teeth approach the same level as the natural and normally growing teeth, and minimize the possibility of food impaction after permanent bonding of the prosthesis, is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] In view of this, the present invention proposes a method for fabricating dental prostheses with a low food impaction rate. Through innovative prosthesis design and fabrication methods, as well as proximal surface shaping schemes, a near-perfect personalized proximal surface design and manufacturing is achieved, minimizing the possibility of food impaction after permanent bonding of the prosthesis.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A method for fabricating a dental prosthesis with low food impaction rate includes:

[0008] Step (1): Obtain full-surface three-dimensional data of the area of ​​the tooth to be restored;

[0009] Step (2): Based on the full surface three-dimensional data, design the complete three-dimensional shape of the restoration, and design the filling cavity in the proximal area where the restoration is adjacent to the tooth to obtain the three-dimensional data of the restoration;

[0010] Step (3): Based on the three-dimensional data of the prosthesis, the prosthesis is fabricated. During the intraoral trial fitting and adjustment, the cavity is filled and the final prosthesis is obtained.

[0011] Optionally, in step (1), full-surface three-dimensional data of the area to be repaired of the tooth are obtained by intraoral three-dimensional scanning.

[0012] Optionally, in step (2), the complete three-dimensional shape of the restoration is designed using restoration three-dimensional design software, and the filling cavity is designed on the proximal area where the restoration is adjacent to the tooth to obtain the restoration three-dimensional data.

[0013] Optionally, in step (2), the orientation of the filling cavity includes near-center and far-center.

[0014] Optionally, in step (2), the filling cavity type includes Class I filling cavity type and Class II filling cavity type.

[0015] Optionally, in step (2), the outer diameter of the filling cavity is 1-2 mm larger than the ideal adjacent area.

[0016] Optionally, in step (2), the inner diameter of the filling cavity is concave and the depth is 0.3-2mm.

[0017] Optionally, in step (3), after filling the cavity, the procedure also includes: waiting for the filling material to solidify, removing the restoration to trim any excess material and polishing the entire restoration to obtain the final restoration.

[0018] Optional filling materials include amalgam, light-cured, and dual-cured resin materials.

[0019] As can be seen from the above technical solution, compared with the prior art, the present invention proposes a method for fabricating oral prostheses with a low food impaction rate. By designing a complete three-dimensional shape of the prosthesis, a filling cavity is designed on the proximal surface area where the prosthesis meets the tooth. This cavity is then filled during the intraoral fitting and adjustment of the prosthesis, ensuring that the relative positional relationship between the proximal surface of the prosthesis and the adjacent tooth is close to the level of a naturally growing tooth, thus minimizing the risk of food impaction after permanent bonding of the prosthesis. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the method flow of the present invention. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Example 1:

[0024] Embodiment 1 of this invention discloses a method for fabricating a dental prosthesis with a low food impaction rate, comprising:

[0025] Step (1): Obtain full-surface three-dimensional data of the area to be repaired of the tooth through intraoral three-dimensional scanning.

[0026] Step (2): Based on the full surface three-dimensional data, design the complete three-dimensional shape of the restoration using restoration three-dimensional design software, such as iPDenture, including crowns, fixed bridges, implant bridges, etc., and design Class I or Class II filling cavities with a mesial or distal orientation on the proximal area where the restoration meets the tooth. The outer diameter of the filling cavity is 1-2 mm larger than the ideal proximal area, the inner diameter is undercut, and the depth is 0.3-2 mm, thus obtaining the three-dimensional data of the restoration.

[0027] The outer diameter of the filling cavity is 1-2 mm larger than the ideal adjacent area to accommodate possible errors.

[0028] The inner diameter of the filling cavity is concave, with a depth of 0.3-2mm, which can lock the filling material inside the cavity and prevent it from dislodging.

[0029] Step (3): Based on the three-dimensional data of the restoration, the restoration is made. During the intraoral trial and adjustment, the cavity is filled. The filling material is amalgam or light-cured and dual-cured resin material. After the filling material solidifies, the restoration is removed and excess material is trimmed and the whole is polished to obtain the final restoration.

[0030] Long-term clinical studies have found that when the prosthesis is fully positioned in the patient's mouth, all errors are eliminated. Under these conditions, the three-dimensional morphology of the proximal surface of the oral prosthesis is optimal. Therefore, filling the cavity during the intraoral trial and adjustment of the prosthesis can make the relative positional relationship between the proximal surface of the prosthesis and the adjacent teeth approach the same level as the natural adjacent relationship of teeth, thus minimizing the risk of food impaction that may occur after the prosthesis is permanently bonded.

[0031] This invention discloses a method for fabricating dental prostheses with a low food impaction rate. During the design of the prosthesis's complete three-dimensional morphology, a filling cavity is designed on the proximal surface of the prosthesis adjacent to the tooth. This cavity is then filled during the intraoral fitting and adjustment of the prosthesis. This ensures that the relative position of the proximal surface of the prosthesis to the adjacent tooth closely approximates the level of naturally occurring tooth contact, minimizing the risk of food impaction after permanent bonding of the prosthesis.

[0032] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0033] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for fabricating a dental prosthesis with low food impaction rate, characterized in that, include: Step (1): Obtain full-surface three-dimensional data of the area of ​​the tooth to be restored; Step (2): Based on the full surface three-dimensional data, design the complete three-dimensional shape of the restoration, and design the filling cavity in the proximal area where the restoration is adjacent to the tooth to obtain the three-dimensional data of the restoration; Step (3): Based on the three-dimensional data of the prosthesis, fabricate the prosthesis, fill the filling cavity during intraoral fitting and adjustment, and remove it to obtain the final prosthesis; In step (2), the orientation of the filling cavity includes near-center and far-center; In step (2), the filling cavity type includes type I filling cavity type and type II filling cavity type; In step (2), the outer diameter of the filling cavity is 1-2 mm larger than the ideal adjacent area; In step (2), the inner diameter of the filling cavity is concave and the depth is 0.3-2mm.

2. The method for fabricating a dental prosthesis with low food impaction rate according to claim 1, characterized in that, In step (1), the full surface three-dimensional data of the tooth to be repaired area is obtained by intraoral three-dimensional scanning.

3. The method for fabricating a dental prosthesis with low food impaction rate according to claim 1, characterized in that, In step (2), the complete three-dimensional shape of the restoration is designed using restoration three-dimensional design software, and the filling cavity is designed on the proximal area where the restoration is adjacent to the tooth to obtain the restoration three-dimensional data.

4. The method for fabricating a dental prosthesis with low food impaction rate according to claim 1, characterized in that, In step (3), after filling the cavity, the procedure also includes: waiting for the filling material to solidify, removing the restoration, trimming excess material, and polishing the entire restoration to obtain the final restoration.

5. The method for fabricating a dental prosthesis with low food impaction rate according to claim 4, characterized in that, The filling material is amalgam, photocurable, or dual-curable resin material.

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