Microhardness of dentin underneath fluoride-releasing adhesive systems subjected to cariogenic challenge and fluoride therapy

Microbiochemical Analysis of Carious Dentine Using Raman and Fluorescence Spectroscopy

“…The microhardness test is commonly associated with the relative mineral content of dental hard tissues and it is routinely used as a reference for their inherent physical properties, as it is not affected by the variability of dental samples [Bresciani et al, 2010;Kirsten et al, 2010]. Using an Ultra-Micro-Indentation System, Ca:P ratios of affected dentine were found to correlate significantly with the microhardness values [Sakoolnamarka et al, 2005].…”

“…Microhardness testing has been used in in vitro studies to determine the hardness of different carious layers and to detect the changes in the consistency of the dental hard tissues after being subjected to different types of treatments [Banerjee, 1999;Bedini et al, 2010;Bresciani et al, 2010;Kirsten et al, 2010]. Microhardness measurement retains direct clinical translational value to operators using the relative dentine hardness to delineate excavation margins [Banerjee et al, 2010a].…”

Microhardness and chemical analysis of high-viscous glass-ionomer cement after 10 years of clinical service as ART restorations

“…14 Although water is the most employed storage medium, current studies attempt to simulate oral conditions (pH-cycling; demineralization and remineralization solutions) on GICs. [15][16][17][18] However, in vitro studies do not effectively reflect what actually occurs in the oral environment, and in situ studies often have short-term results. 19 Van Duinen et al 20 reported that under oral conditions, glass-ionomer gradually changes into a harder and smoother enamel-like structure with increased calcium and phosphate content.…”

Evaluation of Streptococcus mutans biofilms formed on fluoride releasing and non fluoride releasing resin composites

“…21 A variety of mechanisms are involved in the anti-cariogenic effects of fluoride, including the reduction of demineralization, the enhancement of remineralization, the interference of pellicle and biofilm formation and the inhibition of microbial growth and metabolism. 19,21,22 Although resin composites are being used extensively, it is unclear if the cariogenicity of biofilms on the materials are affected by the amount of fluoride released from the materials.…”