Effects of Bio-Aging on Mechanical Properties and Microbial Behavior of Different Resin Composites.

ABSTRACT: Under challenging oral environments, the overall performance of resin composites is affected by bio-aging. This study investigated the effects of saliva biofilm-induced bio-aging on the mechanical properties and microbial behavior of composites with different filler types. Microhybrid, nanohybrid, nano-filled and nano-filled flowable composites were bio-aged with saliva biofilm for 30 days. Surface morphology, roughness, mechanical and aesthetic properties were determined. A 48 h saliva biofilm model was used to evaluate the microbial behavior of different composites in vitro. Biofilm metabolic activity, lactic acid production and live/dead bacterial staining were tested. Six volunteers were selected to wear intra-oral appliances with composite slabs for 24 h and biofilms were collected an

SUBMITTER: Shou Y 

PROVIDER: S-EPMC10377581 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature