Longitudinal Results of a 10-Year Clinical Trial of Repair of Amalgam Restorations

Inclusion Criteria: * patients having at least one tooth with a localized marginal defective amalgam restoration(s) that was clinically determined to be suitable for repair, according to USPHS criteria * patients with at least 20 teeth; * restorations in functional occlusion with at least one opposing natural tooth; * asymptomatic of post-operative sensitivity; * with occlusal and proximal contact areas; * patients older than 18 years; and * patients who agreed and signed the informed consent form for participating in the study. Exclusion Criteria: * patients with contraindications for regular dental treatment based on their medical history * patients who had special aesthetic needs that could not be solved by repair treatments * patients with xerostomia and/or patients who were taking medication that significantly decreased salivary flow * patients with high risk for caries * patients with psychiatric or physical diseases, which interfered with oral hygiene