Pit and fissure sealant based on the concept of tooth surface hydrophobization

Abstract

The invention provides a pit and fissure sealant based on a dental surface hydrophobization concept. The pit and fissure sealant is composed of a single-component pit and fissure sealant and a two-component pit and fissure sealant and further comprises the necessary composition components of a hydrophobic reagent, a solvent, hydrophobic polymeric monomers, a photopolymerization initiator and packing. According to the pit and fissure sealant, the problems that a pit and fissure sealant is poor in sealing property and prone to disengagement are solved. Compared with a traditional pit and fissure sealant, hydrophobic modification is conducted on a dental surface in the pit and fissure sealing process, the hydrophily of the dental surface is changed, and the dental surface is changed from hydrophily to hydrophobicity; the pit and fissure sealant has the advantages that infiltration of the pit and fissure sealant to the dental surface is enhanced, a uniform and stable tooth-pit and fissure sealant interface is formed finally, the sealing property and durability of pit and fissure sealing are improved, and the interface leakage rate is decreased.

Description

technical field [0001] The invention belongs to the field of medical biomaterials, and relates to a pit and fissure sealant based on the idea of ​​hydrophobizing the tooth surface. Background technique [0002] Pit and fissure sealing is a method to prevent pit and fissure caries. The anti-caries effect of pit and fissure sealing depends on the complete retention of the sealant and the adhesion between the sealing material and the tooth surface. Despite the continuous improvement of pit and fissure sealing materials and techniques, the incidence of sealant shedding and microleakage is still high. Therefore, improving the permeability of the sealant and the adhesion to the tooth surface has practical significance for improving the anti-caries effect of pit and fissure sealant. Traditional pit and fissure sealants are usually composed of synthetic organic polymer resins, diluents, initiators and some auxiliary agents (solvents, fillers, fluorides, paints, etc.) to moisturize ...

AI Technical Summary

Problems solved by technology

Traditional pit and fissure sealants are usually composed of synthetic organic polymer resins, diluents, initiators and some auxiliary agents (solvents, fillers, fluorides, paints, etc.) to moisturize the tooth surface after acid etching, cleaning and drying. Poor wetness leads to defects in the interface between the pit and fissure sealant and the tooth surface, especially at the bottom of the pit and fissure. The defect is prone to accumulation of food and bacteria, leading to caries. In addition, the existence of interface defects also leads to pit and fissure sealing. main cause of shedding

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