Measuring the effectiveness of biochemical autoanalyser and laser device in detection of WSLs around orthodontic brackets

摘要

This study used two quantitative methods to investigate the efficacy of different methods in preventing enamel deminer-alization around orthodontic brackets under similar in vitro conditions. The study included 90 extracted bovine incisors randomized into six groups: fluoride toothpaste(FT), non-fluoride toothpaste(NFT), fluoride varnish plus fluoride toothpaste(FV+FT), casein phosphopeptide-amorphous calcium phosphate(CPP-ACP) varnish plus fluoride toothpaste(CPP-ACP+FT), medical mineral gel plus non-fluoride toothpaste(MMG+NFT), and no intervention(control). All groups were subjected to a pH cycle. The buccal surfaces were assessed with a DIAGNOdent pen(DD) at baseline(T0) and the 19th day(T1). For each group, the mean Ca2+ loss was also measured by the colorimetric method. The current study focused on the assessment of total mineral loss using DD and colorimetric methods.