Tooth implantation quick moulding system and tooth implantation quick moulding method based on 3D printing

Abstract

The invention provides a tooth implantation quick moulding system which is used for quickly preparing a human implant material on the basis of 3D printing and a moulding method which can accurately control position and angle of tooth implantation. During the preparation process, the material is dynamically added according to a preset scanning trace. The system is high in accuracy and is high in speed. A prepared tooth implantation body is strong in wear resistance and is high in bending strength. The 3D printing quickly moulding method can reduce rejection rate caused by flexural deflection or temperature, thereby greatly reducing production cost.

Description

technical field [0001] The invention relates to a design and manufacturing technology for implanted teeth, in particular to a rapid prototyping system and method for implants based on 3D printing. Background technique [0002] 3D printing technology has developed rapidly and been widely used in the world after more than 20 years since its development in 1987. This method can quickly, high-precision, and individualize the computer model and CT scan data to manufacture implants of arbitrary shapes and structures. [0003] In the field of dentistry, artificial tooth roots, that is, biologically reconstructed teeth, are often used as restoration treatments for tooth defects. Although a breakthrough has been made in dental implant treatment, researchers still need to solve several key problems. First, in implant treatment, in order to achieve a good occlusion between the implanted tooth and the coupled tooth, it is necessary to master the technology of controlling the size of th...

AI Technical Summary

Problems solved by technology

[0004] The Korean KR10-2014-0079556 patent discloses a technology for molding teeth, which uses a rotating platform to reproduce the teeth using 3D printing data. Superiority. In addition, in terms of materials, the technology uses titanium alloys. Studies have found that Ti-6Al-4V alloys, which are widely used in the field of orthopedics, contain cytotoxic V and Al, and long-term use will inevitably produce toxic side effects; these The elastic modulus of metal alloys is relatively large, titanium alloy is 110GPa, and the elastic modulus of teeth is only about 10-30GPa. Metal implants with high elastic modulus will produce stress shielding phenomenon after dental implants enter the oral cavity, causing tooth root absorption and implantation. The body is loose and needs to be replaced twice, which increases the patient's pain

[0005] In order to solve the above problems, the prior art often uses root canal filling technology to fill the teeth, which can not only restore the tooth body in the shortest time, but also avoid the heavy metal pollution of titanium alloy materials in the past, but the root canal of the prior art The filling material is mainly gutta-percha, supplemented with root canal sealers such as zinc chloride clove oil or calcium hydroxide to complete the root canal treatment. The fluidity at room temperature is too large and requires a large cooling system to shape and solidify. On the one hand, due to the technical differences of doctors, the position and angle of implantation will obviously be inaccurate in the restoration of difficult parts of the teeth, and the patient's occlusal discomfort after surgery

Images