Effect of silanized nanosilica addition on remineralizing and mechanical properties of experimental composite materials with amorphous calcium phosphate

Abstract

ACP-based composite resins with modified composition could serve as an effective remineralizing aid as base materials in restorative dental medicine.

Remineralizing amorphous calcium phosphate based composite resins: the influence of inert fillers on monomer conversion, polymerization shrinkage, and microhardness

“…More importantly, this observation is noted in the commercial control material, which suggests that other methods might be more suitable for the evaluation of material’s mechanical properties. The flexural strength and modulus, used in our previous studies (13,14) might be more appropriate. Second, it would be beneficial to simultaneously measure the DC and PS on the same sample, or at least to gather the DC and PS data on different samples of the same material at the same time.…”

“…However, ACP is soft and porous and cannot fulfill this function in ACP composites. In order to use these materials in clinical practice as a restorative material, we have attempted to enhance their mechanical properties (13,14). By incorporating silanized inert fillers into a typical ACP formulation, flexural strength was improved, while optimal ion release needed for remineralization was retained.…”

“…So far, we have shown that the addition of certain inert fillers to ACP based composites improves their mechanical properties without reduction of their remineralizing potential (13,14). From a large pool of materials with different kinds of inert fillers and their amounts (13,14,21), the materials with the best results have been selected for further research. These materials are investigated in the current study, which tests if the same approach can be used to enhance the polymerization related properties of ACP composites, their PS, DC, and HV.…”

Light transmittance and polymerization kinetics of amorphous calcium phosphate composites

“…This paper is one in the series of our investigations on ACP composites reinforced with inert fillers [5][6][7]21]. The aims of this study were to (I) assess the light transmittance of ACP composites with reinforcing fillers; (II) use the real-time light transmittance monitoring to obtain a measure of the polymerization rate; (III) compare the light transmittance, conversion, and temperature data to gain information about polymerization kinetics; and (IV) explore the relationship between the polymerization rate and light transmittance.…”

“…Mechanical properties of ACP composites are generally lower than those of their commercial counterparts [1,4], but can be enhanced by the admixture of reinforcing fillers, such as silanized barium glass and silica [5,6]. This approach improves the material's strength, while maintaining its favorable properties, i.e., remineralizing effect and high degree of monomer conversion [5][6][7].…”