Light-cured composite resin based on laminar filler and preparation method of light-cured composite resin

Abstract

The invention discloses light-cured composite resin based on a laminar filler for oral cavities and a preparation method of the light-cured composite resin, belonging to the field of oral medical materials. According to the light-cured composite resin disclosed by the invention, a common filler in the conventional light-cured composite resin is replaced by the laminar filler subjected to chemical treatment. The orientation and own characteristics of the laminar filler ensure that during light curing of a light-cured resin matrix, the curing shrinkage ratio of the light-cured resin matrix is greatly reduced and the strength and hardness of the light-cured resin matrix are increased. By using the laminar filler, a seepage path of water molecules is greatly increased, the water absorption rate of the composite resin is greatly reduced, the dehiscence between repair resin and a tooth matrix can be significantly reduced, and clinically most common ruptures and secondary caries causing repair failure can be effectively reduced. The light-cured composite resin is of great significance for reducing pains of patients and promoting the development of oral cavity repair materials.

Description

technical field [0001] The invention belongs to the field of stomatological materials, and in particular relates to a light-cured composite resin based on sheet-like fillers and a preparation method thereof. Background technique [0002] In the 1960s, composite resin was introduced into the field of tooth restoration, which became a revolutionary progress in oral material science. Although composite resin materials have been developed for many years, many of their excellent properties have played an important role in clinical treatment. However, the shortcomings of composite resins in long-term clinical application have gradually been exposed, among which the more prominent ones are: first, during the polymerization process, the volume shrinks, resulting in micro-leakage of the edges between the composite resin and the tooth, and then It is easy to form secondary caries; second, the mechanical properties of composite resin restoration materials are not ideal, especially whe...

AI Technical Summary

Problems solved by technology

However, the shortcomings of composite resins in long-term clinical application have gradually been exposed, among which the more prominent ones are: first, during the polymerization process, the volume shrinks, resulting in micro-leakage of the edges between the composite resin and the tooth, and then It is easy to form secondary caries; second, the mechanical properties of composite resin restoration materials are not ideal, especially when used as a posterior tooth filling restoration, compared with silver amalgam, its strength and wear resistance are still insufficient

[0003] Studies have shown that the shortcomings of photocurable resin materials may be related to the composition and content of the repair resin itself, especially the type and relative content of the resin matrix and the performance and content of inorganic fillers.

Images