Quispe-López Norberto, Sánchez-Santos Juan, Delgado-Gregori Joaquín, López-Malla Matute Joaquín, López-Valverde Nansi, Zubizarreta-Macho Álvaro, Flores-Fraile Javier, Gómez-Polo Cristina, Montero Javier
Department of Surgery, Faculty of Medicine, Dental Clinic, University of Salamanca, Miguel de Unamuno Campus, 37007 Salamanca, Spain.
Department of Surgery, Salamanca Biomedical Research Institute (IBSAL), University of Salamanca, 37007 Salamanca, Spain.
J Clin Med. 2022 May 22;11(10):2918. doi: 10.3390/jcm11102918.
(1) Background: This study compared the clinical and esthetic results of the double lateral sliding bridge flap (DLSBF) and the laterally closed tunnel (LCT) techniques, with a subepithelial connective tissue graft (SCTG), for the treatment of single Miller class II-III recessions in the mandibular anterior teeth. (2) Methods: This pseudorandomized clinical trial evaluated 14 patients, 7 of whom were part of the DLSBF + SCTG group, with an average follow-up of 58.7 ± 24.0 months, and 7 of whom were in the LCT + SCTG group, with an average follow-up of 16.7 ± 3.3 months. Clinical and esthetic evaluations of the following parameters were performed and the results for the two groups were compared: gingival recession depth, probing depth, keratinized tissue width, gingival thickness, percentage of root coverage and root coverage esthetic score. (3) Results: After the follow-up period, each technique provided evidence of a reduction in recession depth and clinical attachment level, as well as increased keratinized tissue width and gingival thickness, with statistically significant differences (p < 0.05). The analysis showed that gingival recession depth decreased less in the DLSBF group (4.3 ± 1.2 mm to 0.6 ± 1.1 mm) than it did in the LCT group (4.9 ± 1.1 mm to 0.1 ± 0.4 mm), but no significant difference was found between the two groups. Similarly, a greater reduction in the clinical attachment level parameter was observed in the LCT group, while a greater increase in gingival thickness was observed in the DLSBF group. The presence of scars was the only parameter for which statistically significant differences (p < 0.05) between the two study groups were found. (4) Conclusions: Within the limitations of the study, it indicates that the LCT + SCTG technique may be considered an optimal technique in terms of reducing gingival recession depth, complete root coverage and esthetic results for the treatment of single gingival recessions in the mandibular anterior teeth.
(1) 背景：本研究比较了双侧滑动桥瓣（DLSBF）技术和侧向闭合隧道（LCT）技术联合上皮下结缔组织移植（SCTG）治疗下颌前牙单颗米勒II - III类牙龈退缩的临床和美学效果。(2) 方法：本伪随机临床试验评估了14例患者，其中7例属于DLSBF + SCTG组，平均随访58.7 ± 24.0个月，另外7例属于LCT + SCTG组，平均随访16.7 ± 3.3个月。对以下参数进行了临床和美学评估，并比较了两组的结果：牙龈退缩深度、探诊深度、角化组织宽度、牙龈厚度、牙根覆盖百分比和牙根覆盖美学评分。(3) 结果：随访期结束后，每种技术均显示出退缩深度和临床附着水平降低，以及角化组织宽度和牙龈厚度增加，差异具有统计学意义（p < 0.05）。分析表明，DLSBF组牙龈退缩深度的减少量（从4.3 ± 1.2毫米降至0.6 ± 1.1毫米）小于LCT组（从4.9 ± 1.1毫米降至0.1 ± 0.4毫米），但两组之间无显著差异。同样，LCT组临床附着水平参数的降低幅度更大，而DLSBF组牙龈厚度的增加幅度更大。瘢痕的存在是两个研究组之间存在统计学显著差异（p < 0.05）的唯一参数。(4) 结论：在本研究的局限性范围内，表明LCT + SCTG技术在减少下颌前牙单颗牙龈退缩的牙龈退缩深度、实现完全牙根覆盖和美学效果方面可能被视为一种最佳技术。
