MicroCT analisys of dental adhesives loaded with nanoparticles

Abstract

Dental decay is an infectious disease that affects more and more people. Dental Restoration Materials are not infallible, after filling a tooth with composite materials, and secondary caries may appear. One of the possible causes involved in the appearance of secondary caries is generated by the uneven thickness of the layer of adhesive that can be fractured by microinfiltration areas. The purpose of this study is to evaluate a new type of dental adhesive that has been loaded with ferric nanoparticles. The thickness of the adhesive layer used in the restoration of the various types of cavities on the surface of the teeth, which were coated with copolymerizable composite materials, was evaluated, making a comparison between the thickness of the uncoated adhesive layer and the thickness of the adhesive loaded with ferric nanoparticles.In this study, 20 extracted teeth were used which presented various carious lesions. The dental caries were removed resulting class I and II Black cavities. The restoration of the cavities was made using adhesive techniques and photopolymerizable fluid-type composites, the adhesive layer being analyzed by the microCT.