There is not enough evidence to support the bevelled technique over non-bevelled for NCCLs over longer periods of time .
OBJECTIVES To identify if enamel bevelling , compared to no treatment , improves the retention rates and marginal discolouration of cervical composite restorations in non-carious cervical lesions ( NCCLs ) of adult patients , through a systematic review of the literature and meta- analysis .
Effect of bevelling on marginal microleakage of buccal-surface fissure sealants in permanent teeth
AIM : This was to assess the effect of bevelling the margins of fissures on buccal surfaces in permanent molars on marginal microleakage of fissure sealants . METHODS : The in vitro study was performed on buccal surfaces of 20 extracted permanent third molars , r and omly divided into two groups of 10 teeth . Group I : performing enameloplasty ( opening the fissures using fissurotomy bur ) , conditioning with phosphoric acid ( 37 % phosphoric acid for 20 s ) , placing bonding ( enamel bonding agent ) , and then fissure sealant . Group II : all stages were similar to Group I , except for bevelling the margins of buccal fissures ( 0.5 mm bevel ) after enameloplasty . Teeth were then thermocycled , stained with 0.5 % basic fuchsin , sectioned and examined for marginal microleakage . The Mann-Whitney test was used for statistical analysis . RESULTS : No dye penetration was seen in Group II ( with bevel ) , but there was a 60 % microleakage in Group I ( without bevel ) ( P=0.005 ) . CONCLUSIONS : In permanent molar teeth , bevelling the margins of fissures on the buccal surfaces appears to reduce the marginal microleakage of fissure sealants
There is not enough evidence to support the bevelled technique over non-bevelled for NCCLs over longer periods of time .
OBJECTIVES To identify if enamel bevelling , compared to no treatment , improves the retention rates and marginal discolouration of cervical composite restorations in non-carious cervical lesions ( NCCLs ) of adult patients , through a systematic review of the literature and meta- analysis .