Effect on the Compressive and Diametral Tensile Strength of Type II GIC reinforced with Nanohydroxyapatite Derived from “Anadara granosa”: An In Vitro Study

Abstract

ORIGINAL RESEARCHmodality is the use of additives such as silver amalgam, photo polymeric resin, silicone whiskers, and hydroxyapatite (HA) nanoparticles. 3 IntroductIonGlass ionomer cement (GIC) has several advantages over other cement. Their primary advantage is the ability to chemically bond to enamel and dentin. Other advantages are ease of handling, anticariogenic property as a result of fluoride release, improved biocompatibility, and thermal expansion coefficient since it is comparable to natural dentition. 1 In addition to these advantages GIC has several disadvantages. It is highly sensitive to moisture, lacks sufficient strength, and is wear resistance to be used as a posterior restorative material. Therefore, improvements are constantly being made to bring about an enhancement in the physical properties of the cement, considering its other advantages. 2 The said deficiency in mechanical properties of GIC limits its use to low-stress bearing areas. Major requirements of mechanical properties for cement to be used in the posterior dental region are with regard to CS and diametral tensile strength. Therefore, these have been used as predictors of clinical performance. 3 Among the various methods used to improve the mechanical characteristics of traditional GIC, by far the most predominant 1,