Clinical Evaluation of a Restorative Glass Ionomer and a Composite Resin for the Restoration

The clinical performances of a restorative glass ionomer and a composite resin will be compared in the restoration of non-carious cervical lesions (NCCLs) at patients with systemic diseases. After recruiting participants with at least 2 NCCLs and at least one systemic disease, all restorations will be placed by a single clinician. All lesions will be cleaned before restoring. NCCLs will be divided into two groups: a conventional restorative glass ionomer cement \[Fuji Bulk (GC, Tokyo Japan) (FB)\] and a posterior composite resin \[G-ænial Posterior (GC, Tokyo Japan) (GP)\] All restorative procedures will be conducted according to manufacturers' instructions. Restorations will be scored using modified United States Public Health Service (USPHS) criteria after a week (baseline) 6, 12, 24, 36 and 48 months. Descriptive statistics will be performed using chi-square tests.