Clinical comparison of localized gingival recession coverage in root surfaces restored with giomer and intact root surfaces

Abstract

This controlled clinical study was aimed to evaluate the root coverage procedures using connective tissue graft (CTG) on non-carious root surfaces in comparison with carious lesions, restored by giomer (g-CTG). Fifteen (15) patients with 30 Miller class I or II defects including 15 carious root lesion (test group) and 15 sound root surfaces (control group) were selected. The carious roots were restored with giomer prior to surgery and then, all the test and control groups were treated with CTG. Probing depth (PD), recession height (RH), recession width (RW), relative clinical attachment level (rCAL), keratinized tissue height (KTH), mucogingival line (MGL), clinical attachment level gain (CALG), recession width reduction (RWR) and percentage of root coverage (RC) were recorded at baseline 1, 3 and 6 months post-operatively. The Friedman test was used to evaluate differences within groups and the Mann-Whitney U test was used to evaluate differences between the groups. Both groups demonstrated significant CALG and RC. The recession width reduction (RWR) was greater for the control group (P < 0.05). However, all other Intra-and inter-group analyses showed no significant differences among the groups. The estimated RC was 81.08+/-19.82% for test and 73.31+/-23.85% for control group. This study indicated that the use of CTG for treatment of root surfaces restored with giomer was effective over the 6-month period without any noxious effect on periodontal tissues.