Method for improving bonding of oral cavity restoration through in-vitro negative pressure

Abstract

The invention provides a method for improving bonding of an oral cavity restoration through in-vitro negative pressure, and belongs to the technical field of oral cavity restoration. After the various-shape bonding face of the to-be-bonded personalized restoration is subjected to conventional processing and coated with bottom pigmentum, a bonding agent and the like, negative pressure can be generated by the bonding face of the to-be-bonded restoration through a negative pressure box, then, the pressure returns to the natural atmospheric pressure (normal pressure) or is increased, the negative pressure-normal pressure or pressure increase process can be repeated, the bottom pigmentum, the bonding agent and the like which are sprayed on the bonding face of the to-be-bonded restoration can more deeply permeate the bonding surface of the restoration through the negative pressure-normal pressure or pressure increase process, the depth by which the bottom pigmentum or the bonding agent permeates the restoration and the attachment degree of the restoration and the bonding agent are effectively increased, the bonding area is effectively enlarged, gomphosis retention is effectively increased, meanwhile, the intermolecular force between the bonding agent and the restoration is increased, and therefore the bonding retention and durability of the bonding agent and the restoration are effectively increased.

Description

technical field [0001] The invention belongs to the technical field of dental prosthetic bonding, and relates to a method for improving the bonding of dental prosthetics with negative pressure. Background technique [0002] Due to the improvement of aesthetic requirements, various new dental materials are constantly coming out. Zirconia ceramics have gradually become the material of choice for fixed restorations due to their excellent properties such as high hardness, high strength, high toughness, extremely high chemical corrosion resistance and wear resistance, as well as excellent aesthetic properties and biocompatibility. The scope of application of fixed restorations continues to expand, but the phenomenon of adhesive failure still occurs clinically, which is considered to be one of the common reasons for the failure of fixed restorations. At present, dental zirconia restorations, such as veneers, crowns, inlays, etc., are precisely produced by computer-aided design / co...

AI Technical Summary

Problems solved by technology

At present, dental zirconia restorations, such as veneers, crowns, inlays, etc., are precisely produced by computer-aided design / computer-aided manufacturing (CAD / CAM) technology, but due to its high surface stability, it is difficult to bond with adhesives. It is difficult to produce good chemical bonding and more mechanical retention between them, so that it is difficult to establish a durable and stable bond

Hydrofluoric acid etching and silane coupling agent treatment have little effect on improving the bonding strength of zirconia ceramics, which limits the application of zirconia ceramics in poor abutment retention, partial veneers, crowns, inlays, etc.

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