Miller Class III recessions can be only partially covered after periodontal plastic surgery, and multiple recession sites further complicate treatment. This study aimed to compare, for the first time, the clinical outcomes of the coronally advanced flap (CAF) and tunnel (TUN) techniques when used in conjunction with connective tissue graft in multiple Miller Class III gingival recessions.
Materials and Methods:
A total of 32 Miller Class III recessions in 13 patients were treated; 18 defects in 7 patients received CAF and 14 defects in 6 patients received TUN. Clinical parameters included recession depth (RD), clinical attachment level (CAL), probing depth (PD), and keratinized gingiva width (KGW). Follow-up examinations were performed at 6 months post-surgery.
At the 6-month follow-up examination, both groups showed a significant increase in KGW and reduction of RD compared with baseline. Mean root coverage (MRC) was 65.5±25.7% in the CAF group and 75±20.4% in the TUN group (p=0.225). Complete root coverage was achieved in 27.7% and 35.7% of defects treated with CAF and TUN, respectively (p=0.631). No significant difference was detected between the 2 groups in terms of the changes in KGW, RD, MRC, and CRC. Significant negative correlations (p=0.028) were found between initial RD and MRC.
The present study suggests that treatment of multiple Miller Class III recessions with CAF or TUN results in comparable clinical outcomes.