High strength and high hardness ceramic gum abutment

Abstract

The invention belongs to the technical field of ceramic teeth, and relates to a high-strength and high-hardness ceramic gum base. The ceramic gum abutment comprises the following components calculated in parts by weight: 90-110 parts of zirconia powder, 60-90 parts of titanium dioxide, 20-50 parts of aluminum oxide fibers, 0.2-1.0 parts of iron oxide, dispersed 0.1-2.0 parts of the agent, 20-50 parts of photocurable resin, 0.1-0.5 part of photoinitiator, 0.1-3.0 part of adhesive, 0.5-5.0 part of coloring agent, 0.5-1.0 part of pore-forming agent, and 500 parts of solvent; The particle size of the zirconia powder is 100nm-500nm, the particle size of the titanium dioxide is 400nm-1000nm, the diameter of the aluminum oxide fiber is 50-200nm, and the length is 10μm-200μm. The high-strength and high-hardness ceramic gum abutment has a white surface, no metallic luster, no cracks on the surface during processing, long service life and good safety.

Description

technical field [0001] The invention belongs to the technical field of ceramic teeth, in particular to a high-strength and high-hardness ceramic gum base. Background technique [0002] Dental implants are composed of multiple parts, including implants, abutments, dentures, etc., where the abutment is installed on the implant platform anchored in the bone and extends into the oral cavity for linking, supporting and Fixed prosthesis or implant superstructure; the abutment is usually retained, twisted and positioned through an inner abutment link or an outer abutment link structure. [0003] Gum abutments in the prior art should not only have good biocompatibility, safety and functionality, but also chemical stability and corrosion resistance; the existing gum abutments usually use cast gold alloys, which have high hardness. , It is convenient for the fixation of implants and dentures during tooth restoration, but this type of alloy material has metallic luster, which will pen...

AI Technical Summary

Problems solved by technology

[0003] The gum abutment in the prior art should not only have good biocompatibility, safety and functionality, but also need to have chemical stability and corrosion resistance; the existing gum abutment usually adopts cast gold alloy, which has high hardness , it is convenient for the fixation of implants and dentures during tooth restoration, but this type of alloy material has a metallic luster, which will pass through the denture during use, and the degree of imitation of ceramic dentures is low, which affects the appearance; while the existing zirconia ceramics have low precision, The toughness is low, and the zirconia parts after modification and sintering will obviously produce microcracks, and there is a risk of cracking when the chewing function is performed after installation.