Effect of fluoride gel on microhardness of flowable composites: An in vitro study

ABSTRACT

Objective: Adequate knowledge about restorative materials particularly flowable composite resins with favorable physical properties like optimal microhardness and resistance to environmental factors is a big concern for many dentists. Flowable composites have several applications for fissure sealant therapy and preventive resin restorations [PRR]; which are common treatments in pediatric dentistry. Acidulated Phosphor Fluoride [APF] topical gels can cause surface degradation and weight loss in composite resins and decrease their wear resistance. This study aimed to assess the effect of APF gel on the microhardness of flowable composites