Treatment of multiple adjacent recessions with the modified coronally advanced tunnel or laterally closed tunnel in conjunction with cross-linked hyaluronic acid and subepithelial connective tissue graft: a report of 15 cases
Treatment of multiple adjacent recessions with the modified coronally advanced tunnel or laterally closed tunnel in conjunction with cross-linked hyaluronic acid and subepithelial connective tissue graft: a report of 15 cases
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DOI：
10.3290/j.qi.a44808
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发表时间：
2020-10-01
影响因子：
1.9
通讯作者：
Sculean, Anton
中科院分区：
文献类型：
--
作者：
Lanzrein, Carla;Guldener, Kevin;Sculean, Anton
目的：评价改良冠状推进通道(MCAT)或侧向封闭通道(LCT)联合透明质酸和上皮下腭部结缔组织移植治疗多个相邻的1型和2型牙龈萎缩(RT1和RT2)的愈合情况。方法和材料：15例健康患者，表现为多个相邻的下颌或上颌RT1和RT2，深度为2 mm，采用MCAT或LCT联合交联型透明质酸和上颌骨上皮下结缔组织移植治疗。结果在基线时和至少6个月后进行评估。主要结果变量是牙根覆盖率。在照片上使用牙根覆盖率美学分数来评估美学效果。结果：术后疼痛和不适程度低，无并发症发生。数据分析在患者水平进行。平均随访17+/-5.4个月，15例患者均获得统计学意义的根面覆盖(P<；.0001)。15例患者中有3例(20%)获得了完全的根管覆盖。3名患者的牙根覆盖率达到95%，4名患者的牙根覆盖率在90%到95%之间，另一名患者的牙根覆盖率达到87.5%。在另外三名患者中，牙根覆盖率分别为75%、77%和64.6%。平均根覆盖率为85.1+/-23.2%。从基线到随访，平均角化组织宽度从2.5+/-1.0 mm增加到3.7+/-0.7 mm(P<；0.0001)，而平均探测深度没有显著变化(1.3+/-0.5 mm比1.5+/-0.5 mm)。平均根面覆盖美学评分为7.9+/-1.9，而在三个完全根面覆盖的病例中，所有治疗牙的最高根面覆盖美学评分为10分。结论：在它们的范围内，目前的结果表明，所描述的治疗方法可能导致可预测的下颌和上颌多个rt1和rt2的牙根覆盖。
Objectives: To evaluate the healing of multiple adjacent type 1 and 2 gingival recessions (RT1 and RT2) treated with the modified coronally advanced tunnel (MCAT) or the laterally closed tunnel (LCT) in conjunction with a cross-linked hyaluronic acid and subepithelial palatal connective tissue grafts. Method and materials: Fifteen healthy patients exhibiting multiple adjacent mandibular or maxillary RT1 and RT2 of a depth of >= 2 mm, were treated with the MCAT or LCT in conjunction with cross-linked hyaluronic acid and subepithelial palatal connective tissue grafts. Results were assessed at baseline and after a minimum of 6 months. The primary outcome variable was root coverage. Esthetic outcomes were evaluated on photographs using the root coverage esthetic score. Results: Postoperative pain and discomfort were low and no complications occurred. Data analyses were performed at patient level. After a mean follow-up of 17 +/- 5.4 months, statistically significant root coverage was obtained in all 15 cases (P < .0001). Complete root coverage was obtained in 3 out of 15 cases (20%). Root coverage amounted to > 95% in three patients, was between 90% and 95% in four patients, and reached 87.5% in another patient. In three further patients root coverage measured 75%, 77%, and 64.6%, respectively. Mean root coverage measured 85.1 +/- 23.2%. Mean keratinized tissue width increased from 2.5 +/- 1.0 mm to 3.7 +/- 0.7 mm (P < .0001) from baseline to follow-up, while mean probing depth showed no statistically significant changes (1.3 +/- 0.5 mm vs 1.5 +/- 0.5 mm). The mean root coverage esthetic score was 7.9 +/- 1.9, while in the three cases exhibiting complete root coverage, a maximum root coverage esthetic score (10) was given for all treated teeth. Conclusion: Within their limits, the present results indicate that the described treatment approach may lead to predictable root coverage of multiple mandibular and maxillary RT1 and RT2.