Mechanical and aesthetic gradient false tooth integrated design and 3D printing method

A 3D printing and denture technology, applied in 3D object support structures, metal processing equipment, household components, etc., can solve the problems of unable to solve the individual requirements of denture mechanics, unable to simplify the production procedures, etc., to improve the wear resistance and simplify the production. effect of the program

Pending Publication Date: 2020-05-12
PEKING UNIV SCHOOL OF STOMATOLOGY
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Problems solved by technology

2. Use 3D printing technology to process directly, but there is no directly available product at present
However, none of the above methods can solve t...

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  • Mechanical and aesthetic gradient false tooth integrated design and 3D printing method
  • Mechanical and aesthetic gradient false tooth integrated design and 3D printing method

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specific Embodiment

[0026] Such as dentition: 1) The first layer has the highest hardness and is used for the occlusal surface. It uses ceramic fillers, PMMA with a mass ratio of 70-85%, the color is A1, and the translucency is 50%. The second layer has lower hardness and uses Pure PMMA, the color is A2, and the translucency is 30%; the third layer has the same hardness as the second layer, which is also pure PMMA, but the color is A3, and the translucency is 10%.

[0027] Gums: The first layer is pink in color; the second layer is red.

[0028] The PMMA material wires include base material wires and artificial tooth material wires. The base material wires are gingival pink, and the artificial tooth material wires are tooth white. They are divided into multiple types according to the chroma, saturation, and lightness of the color of the material wires. According to the clinical colorimetric results, different types of bases and artificial tooth material filaments can be individually selected and ...

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Abstract

The invention relates to a mechanical and aesthetic gradient false tooth integrated design and 3D printing method. The method includes the following steps that a dentition portion and a base plate portion of a false tooth are designed through CAD software; the dentition is divided into 3-5 layers from an occlusal surface to a gingiva, and cross transition layers are arranged between the layers forgradient transition of the hardness, the abrasion resistance and the colors; the base plate is divided into an upper layer and a lower layer from the occlusal surface to the gingiva for gradient transition of the hardness and the colors; color layers distinguished by colors and specifications are set in the normal direction of an occlusal plane according to an individual clinical colorimetric result of teeth of a patient, each layer represents one color, and the start-stop surface of each color layer in the normal direction of the occlusal plane is marked to serve as an interface for replacing different materials; and numerical control machining equipment and bundled software thereof are applied, false tooth printing forming is carried out, and the false tooth is manufactured. The manufacturing process can be simplified, the individual requirements of the mechanical and aesthetic gradient false tooth are met, and precise integrated forming is carried out.

Description

technical field [0001] The invention relates to a volumetric digital design method of dentures, in particular to a method for integrated design and 3D printing of dentures with gradient gradients in mechanics and aesthetics. Background technique [0002] CAD / CAM technology has been widely used in dental multidisciplinary. Dental restoration CAD / CAM system mainly includes three parts: data acquisition, computer-aided design and computer-aided processing. After more than 40 years of research, this technology has occupied a place in the field of fixed oral restorations, and it well reflects the superiority of CAD / CAM technology, improves efficiency, reduces the labor intensity of medical technicians, improves the quality of restorations, and is accurate and weakened. Due to the influence of factors such as the experience and personal quality of medical technicians, etc. [0003] At present, the research results in this field shown in domestic and foreign literature are mainly...

Claims

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Application Information

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IPC IPC(8): B29C64/386B29C64/112B33Y10/00B33Y50/00B29L31/00
CPCB29C64/386B29C64/112B33Y10/00B33Y50/00B29L2031/7536
Inventor 孙玉春周永胜王勇陈虎邓珂慧白鹤飞马珂楠陈科龙
Owner PEKING UNIV SCHOOL OF STOMATOLOGY
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