However , variability was substantial .
Restoration type , material s , the patient , the operator , the practice environment and type of care system appeared to influence longevity .
Objective To conduct a systematic review of the literature on the longevity of routine dental restorations in permanent posterior teeth , and to identify and examine factors influencing its variability .
Longevity of glass-ionomer restorative materials: results of a 10-year evaluation.
Three restorative material s used for cervical erosion /abrasion lesions were evaluated clinical ly after 10 years . Thirty adult patients with at least four cervical lesions received one restoration of each of Ketac-Fil , finished immediately , Ketac-Fil , finished after a delay , Chelon-FIl ( all glass-ionomer cements ) , and Cervident ( a resin composite ) . Restorations were placed without any tooth preparations . Eighteen patients returned for their 10-year examinations . Two experienced examiners provided the periodic evaluations . Complete retention at 10 years was 83 % for Ketac-Fil , finished immediately ; 78 % for Ketac-Fil , finished after a delay ; 67 % for Chelon-Fil ; and 17 % for Cervident . All three glass-ionomer restorative material s exhibited statistically significantly greater retention that did Cervident . When a noninvasive procedure is desired , glass-ionomer material s are the restorative material of choice for abrasion/erosion lesions because of their long-term retention values
However , variability was substantial .
Restoration type , material s , the patient , the operator , the practice environment and type of care system appeared to influence longevity .
Objective To conduct a systematic review of the literature on the longevity of routine dental restorations in permanent posterior teeth , and to identify and examine factors influencing its variability .