Faculty of Dental Medicine, Universidade Católica Portuguesa, Viseu, Portugal.
Faculty of Medicine, University of Salamanca, Salamanca, Spain.
Sci Rep. 2021 Oct 14;11(1):20399. doi: 10.1038/s41598-021-99573-6.
This research aimed to develop a new digital evaluation protocol to objectively quantify the volumetric changes of root coverage periodontal plastic surgery when combined with connective tissue graft. Consecutive patients with Cairo recession type 1 (RT1) or Cairo recession type 2 (RT2) were treated. Accurate study models obtained at baseline and follow-ups were optically scanned. Healing dynamics were measured by calculating volume differences between time points. Nineteen patients were treated between December 2014 and January 2019. At 3-month follow-up, root coverage was 95.6% (± 14.5%) with tunnel and connective tissue graft (TUN + CTG) technique, and 88.9% (± 20.5%) with the vestibular incision subperiosteal tunnel access and connective tissue graft (VISTA + CTG) technique. Recession decreased 1.33 (± 0.86) mm and 1.42 (± 0.92) mm, respectively (p = 0.337). At 6-month follow-up, root coverage was 96.5% (± 10.4%) with the TUN + CTG and 93.9% (± 10.3%) with the VISTA + CTG. Recession decreased 1.35 (± 0.85) mm and 1.45 (± 0.82) mm, respectively (p = 0.455). Complete root coverage was achieved in 86.7% (± 0.4%) with TUN + CTG and 70.6% (± 0.5%) with VISTA + CTG. No statistically significant differences were found between techniques. The digital protocol presented proved to be a non-invasive technique for accurate measurements of clinical outcomes. Both techniques reduce gingival recessions, with no statistically significant differences.
本研究旨在开发一种新的数字评估方案，以客观量化结合结缔组织移植的牙周整形手术后的体积变化。连续患有开罗Ⅰ型（RT1）或开罗Ⅱ型（RT2）牙龈退缩的患者接受治疗。在基线和随访时获得准确的研究模型，并进行光学扫描。通过计算各时间点之间的体积差异来测量愈合动态。2014 年 12 月至 2019 年 1 月期间，共 19 名患者接受了治疗。在 3 个月的随访中，隧道和结缔组织移植（TUN+CTG）技术的根覆盖面积为 95.6%（±14.5%），而隧道和结缔组织移植（VISTA+CTG）技术的根覆盖面积为 88.9%（±20.5%）。退缩减少了 1.33（±0.86）mm 和 1.42（±0.92）mm，分别（p=0.337）。在 6 个月的随访中，TUN+CTG 的根覆盖面积为 96.5%（±10.4%），VISTA+CTG 的根覆盖面积为 93.9%（±10.3%）。退缩减少了 1.35（±0.85）mm 和 1.45（±0.82）mm，分别（p=0.455）。TUN+CTG 的完全根覆盖面积为 86.7%（±0.4%），VISTA+CTG 的完全根覆盖面积为 70.6%（±0.5%）。两种技术之间无统计学差异。所提出的数字方案被证明是一种非侵入性技术，可用于准确测量临床结果。两种技术均减少牙龈退缩，无统计学差异。
