3D printing false tooth material

A 3D printing and denture technology, applied in the field of dentures, can solve the problems of poor roasting stability, not smooth enough denture surface, and unattractive surface color, etc., and achieve good roasting stability, vivid and beautiful surface color, superior grinding and polishing performance Effect

Inactive Publication Date: 2016-08-10
AI JIA DENTAL LAB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For this purpose, after modeling the patient's oral situation in the articulator and installing the positive model, before building said teeth in wax, the translational and rotational positions of the teeth concerned are checked and improved if necessary, e.g. Grinding of the occlusal surface or cutting surface, the surface of the denture produced in this way is not smooth enough, the baking stability is poor, and the surface color is not beautiful enough
[0004] Therefore, there is still a large room for improvement in the existing technology

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Embodiment 1, a 3D printing denture material, including zirconia-reinforced lithium silicate glass ceramics as the base material, and the zirconia-reinforced lithium silicate glass ceramics are combined with zirconia-reinforced lithium silicate glass ceramics Personalized decorative finishing material, the finishing material is a low-melting fine-grained feldspar material, and the thermal expansion coefficient of the zirconia-reinforced lithium silicate glass ceramics and the low-melting fine-grained feldspar material is 11.6 (10 -6 K -1 ), through the perfect matching of the thermal expansion coefficients of the base material and the facing material, a good combination between the two materials and a long-term stable stress-free state of the facing material are guaranteed, while the low-melting fine-grained feldspar material is uniform and dense on the surface, Good firing stability, excellent grinding and polishing performance, can make the denture surface smooth and ...

Embodiment 2

[0018] Embodiment 2, the chemical composition and mass percentage of the zirconia reinforced lithium silicate glass ceramics are: ZrO 2 10%-14%, SiO 2 54%-67%, Li 2 O 12%-25%, colorant 0%-10%, stabilizer 0%-15%, wherein, the colorant is selected from Eu 2 o 3 , CeO 2 , Tb 4 o 7 , La 2 o 3 、 Ta 2 o 5 , MnO 2 , Fe 2 o 3 At least one of, the stabilizer is selected from SrO, BaO, Y 2 o 3 at least one of the

Embodiment 3

[0019] Embodiment three, the chemical composition and weight percent of described finishing material are: ZrO 2 0.5%-0.9%, SiO 2 60%-65%, Al 2 o 2 6%-15%, Na 2 O5%-8%, K 2 O8%-15%, CaO1%-2%, B 2 o 2 3%-8%, the facing material has excellent baking characteristics, which can ensure that its shape and size will not be deformed after repeated sintering. In addition, the surface of the facing material has good wettability, which is suitable for multi-layer stacking without a bonding layer Firing or cleaning opaque firing.

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PUM

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Abstract

The invention relates to the technical field of false teeth, in particular to a 3D printing false tooth material .The 3D printing false tooth material comprises zirconia enhanced lithium silicate glass ceramic used as a substrate material, the zirconia enhanced lithium silicate glass ceramic is matched with a facing material for carrying out personalized decoration on the zirconia enhanced lithium silicate glass ceramic .The facing material is the low-melting-point fine particle feldspar material .By means of perfect matching of coefficients of thermal expansion of the substrate material and the facing material, good bonding of the two materials and long-term stability of the facing material are ensured; the low-melting-point fine particle feldspar material is uniform, compact in surface and good in roasting stability and has excellent grinding and polishing performance, and therefore the surfaces of false teeth can be smooth and compact; the low-melting-point fine particle feldspar material has the high permeability and warn tone, meanwhile, the zirconia enhanced lithium silicate glass ceramic has an opalescence effect, and therefore the surface color can be fresh and attractive .

Description

technical field [0001] The invention relates to the technical field of dentures, in particular to a 3D printed denture material. Background technique [0002] Dentures have long been manufactured as partial and / or complete dentures, in which artificial teeth intended to replace natural teeth are embedded in a material that mimics the patient's gums. [0003] In order to at least alleviate possible suffering for the patient, efforts are made to optimize the position of the teeth in terms of occlusion. For this purpose, after modeling the patient's oral situation in the articulator and installing the positive model, before building said teeth in wax, the translational and rotational positions of the teeth concerned are checked and improved if necessary, e.g. Grinding of the occlusal surface or cutting surface, the surface of the denture produced in this way is not smooth enough, the baking stability is poor, and the surface color is not beautiful enough. [0004] Therefore, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K6/02A61K6/027
CPCA61K6/70A61K6/818A61K6/833
Inventor 刘嘉
Owner AI JIA DENTAL LAB
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