Treatment of Maxillary Gingival Recessions Using the Modified Coronally Advanced Tunnel Technique in Combination with a Volume-Stable Collagen Matrix: A Prospective Case Series with a 12-Month Follow-up.

The aim of this case series was to evaluate the clinical performance of a new volume-stable collagen matrix (VCMX) in combination with the modified coronally advanced tunnel technique (MCAT) for the treatment of gingival recessions. Thirteen patients with a total of 33 maxillary RT1 single and multiple gingival recessions were included in the study. Probing pocket depth (PPD), recession width (RECW), recession depth (REC), height of keratinized tissue (HKT), and gingival thickness (GT) were assessed at baseline and at the 12-month follow-up. Postoperative healing was uneventful in all cases without any complications. At 12 months, mean root coverage (MRC) was 92.88%, with complete root coverage (CRC) in 87.88% of treated sites. The present findings suggest that VCMX in combination with MCAT results in predictable coverage of maxillary RT1 gingival recessions. Further studies with larger sample sizes and control groups are needed to support these preliminary outcomes.