3D printing bionic tooth

Abstract

The utility model discloses a 3D printing bionic tooth which comprises a dental crown and a tooth root, the dental crown and the tooth root are manufactured through the 3D printing technology, an annular groove is formed in the side face of the tooth root, bone meal is filled in the annular groove, an abutment is integrally manufactured on the upper surface of the tooth root, and the dental crown and the abutment are fixed in a pasting mode. According to the utility model, the tooth root of the manufactured bionic tooth is better in biocompatibility through the technology of combining electroplating and dyeing, the appearance of the dental crown is close to that of a normal tooth by using a porcelain technology, and the dental crown and the normal tooth are mounted after being combined, so that tooth implantation and tooth extraction are synchronously carried out, and the problem of repairing deformed teeth is emphatically solved.

Description

Technical Field

[0001] The utility model relates to the technical field of tooth restoration, in particular to a 3D printed bionic tooth. Background Art

[0002] With the improvement of people's oral health awareness and economic level, more and more people are beginning to pay attention to the implant restoration of missing teeth. In order to meet the patients' growing multi-level health needs for oral health, implant restoration is an important part of maintaining oral health.

[0003] Since 1966, when Branemark of Sweden first applied titanium dental implants to clinical practice, dental implant technology has been widely used in clinical practice after years of development and has become one of the important restorative methods for restoring edentulous and missing teeth. Pure titanium implants generally have the problems of stress shielding and low biological activity caused by excessively high elastic modulus, which increases the failure rate of immediate implantation and brings great physiological and psychological pressure to patients. Currently, most commercial implants are made of dense titanium metal materials, whose elastic modulus far exceeds that of human bone tissue. When the implant is under load, it will produce a stress barrier effect with the bone tissue, which will lead to disuse atrophy of cortical bone.

[0004] Traditionally, dentures are made directly. The color of titanium dentures is metallic silver-white. After installation, they are quite different from normal teeth and are not aesthetically pleasing.

[0005] Therefore, we propose a 3D printed bionic tooth that combines titanium metal and porcelain technology to solve the above-mentioned problems. Utility Model Content

[0006] The purpose of the utility model is to provide a 3D printed bionic tooth to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a 3D printed bionic tooth, comprising: a crown and a root, wherein the crown and the root images are collected by CBCT and produced by light-curing 3D printing technology, the crown is made by injection molding of a 3D model and applying a porcelain-baked process, and the root is made by injection molding of a 3D model and applying a titanium casting process, and the two are combined into a finished bionic tooth;

[0008] The side surface of the tooth root is provided with an annular groove, and the annular groove is filled with bone powder;

[0009] The upper surface of the tooth root is integrally made with an abutment, and the crown and the abutment are fixed by bonding.

[0010] Preferably, the tooth root surface is electroplated with Ca / P or apatite is coated on the anodized titanium surface using sol-gel technology to form titanium oxide and hydroxyapatite surface coating to enhance the bone bonding ability of titanium and produce a titanium white bionic tooth root.

[0011] Preferably, the base is designed to be cylindrical, single-strip, or double-strip staggered.

[0012] Preferably, the dental crown is made of porcelain.

[0013] Preferably, the crown and the root are obtained by obtaining tooth samples through CBCT, establishing a missing tooth model, and then produced through light-curing 3D printing technology.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The bionic tooth roots made by combining electroplating and dyeing have good biocompatibility, and the crowns use porcelain technology, which makes their appearance close to that of normal teeth. The two are combined for installation.

[0016] 2. Realize simultaneous tooth implantation and tooth extraction, and focus on solving the problem of repairing deformed teeth. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a top view of the tooth root in the utility model;

[0019] Figure 3 It is a structural schematic diagram of a single strip base in the utility model;

[0020] Figure 4 It is a schematic structural diagram of the double-strip base in the utility model.

[0021] In the figure: 1, crown; 2, root; 21, groove; 22, abutment. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4The utility model provides a technical solution: a 3D printed bionic tooth, comprising: a crown 1 and a root 2, the images of the crown 1 and the root 2 are collected by CBCT, made into a tooth sample, a missing tooth model is established, and the model is solidified by using light-curing 3D printing technology to make the crown 1 and the root 2, the size of which is the same as the CBCT model, and the process of making the model first and then making the denture is adopted, so that the surface structure of the denture model can be freely changed to make it have better bone bonding characteristics;

[0024] An annular groove 21 is provided on the side of the tooth root 2, and the annular groove 21 is filled with bone powder to make it more closely integrated with the alveolar bone, while avoiding the difficulty of implantation caused by too thin alveolar bone;

[0025] The tooth root 2 surface is electroplated with Ca / P or apatite is coated on the anodized titanium surface by sol-gel technology to form a titanium oxide and hydroxyapatite surface coating to enhance the bone bonding ability of titanium and improve its tissue compatibility;

[0026] The upper surface of the tooth root 2 is integrally made with the abutment 22, and the crown 1 and the abutment 22 are glued and fixed;

[0027] The base 22 is designed in cylindrical, single-strip, and double-strip staggered types to accommodate different teeth and crowns 1 of different materials;

[0028] The crown 1 is made of porcelain.

[0029] Working principle: Extract the affected tooth, insert the denture, use bone powder to fill the groove 21 of the bionic root 2 and the remaining position of the alveolar bone, use the craniomandibular positioner (COPA), a removable and reversible occlusal corrector, for temporary bonding, fix the denture on the surrounding abutment teeth, and remove it after one month.

[0030] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0031] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A 3D printed bionic tooth, comprising: A tooth crown (1) and a tooth root (2), characterized in that: the tooth crown (1) and the tooth root (2) are manufactured by 3D printing technology; An annular groove (21) is provided on the side of the tooth root (2), and the annular groove (21) is filled with bone powder; The upper surface of the tooth root (2) is integrally formed with an abutment (22), and the tooth crown (1) and the abutment (22) are fixed by gluing; The dental crown (1) is made of porcelain.

2. A 3D printed bionic tooth according to claim 1, characterized in that: The tooth root (2) is electroplated with Ca / P on its surface or apatite is coated on an anodized titanium surface using sol-gel technology to form a titanium oxide and hydroxyapatite surface coating to enhance the bone bonding ability of titanium, thereby manufacturing a titanium-made white bionic tooth root (2).

3. A 3D printed bionic tooth according to claim 1, characterized in that: The base (22) is designed in a cylindrical type, a single-strip type, or a double-strip staggered type.

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