Management of postop sensitivity in class 1 amalgam restorations: A clinical study evaluating the efficacy among bonded amalgam,the use of cavity varnish and conventional amalgam restoration

Aim: to investigate which lining material is responsible for decreased post operative sensitivity among bonded amalgam,cavity varnish and conventional silver amalgam filling in class 1 amalgam restoration methods: this study was carried out at nishtar institute of dentistry from 1-7-2016 to 30-9-2016. a total number of 51 patients were selected after oral examination having black's class 1 cavity in mandibular molars. patients were divided in three groups. group i got amalgam filling with zinc phosphate lining. group ii got the amalgam restoration with cavity varnish coating and group iii received bonded amalgam restorations. results: the results rejected the null hypothesis (ho) which denotes that all the restorations would present similar findings in reducing the post operative sensitivity. there is difference among all three modes of restorations which was confirmed by tukey hsd test. conclusion: the post operative sensitivity in class 1 cavity can be minimized by the bonded amalgam restoration. the use of cavity varnish is also of positive value minimizing the post operative sensitivity.