Sculean Anton, Cosgarea Raluca, Stähli Alexana, Katsaros Christos, Arweiler Nicole Birgit, Miron Richard John, Deppe Herbert
Quintessence Int. 2016;47(8):653-9. doi: 10.3290/j.qi.a36562.
To clinically evaluate the healing of multiple adjacent maxillary Miller Class I, II, and III gingival recessions (MAGR) treated with the modified coronally advanced tunnel (MCAT) in conjunction with an enamel matrix derivative (EMD) and subepithelial connective tissue graft (SCTG).
Twelve systemically healthy patients (6 females) with a total of 54 adjacent maxillary Miller Class I, II, or III MAGR were consecutively treated with MCAT in conjunction with EMD and SCTG. Out of the 54 recessions, 44 were classified as Miller Class I, five as Miller Class II, and five as Miller Class III. Patients were included in the study if they presented at least two adjacent recessions with a depth of ≥ 3 mm. Measurements were made at baseline (immediately before reconstructive surgery) and at 12 months postoperatively. The primary outcome variable was complete root coverage (CRC) (ie, 100% root coverage).
Healing was uneventful in all cases without any complications such as postoperative bleeding, allergic reactions, abscesses, or loss of SCTG. At 12 months, statistically highly significant (P < .0001) root coverage was obtained in all patients and recessions. CRC was obtained in 37 Miller Class I, three Miller Class II, and one Miller Class III recessions, respectively. Mean root coverage was 96%. Mean keratinized tissue width increased statistically highly significantly (P < .004) from 2.04 ± 0.95 mm at baseline to 2.37 ± 0.89 mm at 12 months.
The present findings indicate that the proposed treatment concept results in predictable coverage of multiple adjacent maxillary Miller Class I, II, and III MAGR.
临床评估采用改良冠向推进隧道术(MCAT)联合釉基质衍生物(EMD)和上皮下结缔组织移植术(SCTG)治疗多个相邻的上颌Miller I、II和III类牙龈退缩(MAGR)的愈合情况。
12例全身健康的患者(6例女性),共有54个相邻的上颌Miller I、II或III类MAGR,连续接受了MCAT联合EMD和SCTG治疗。在54处退缩中,44处被分类为Miller I类,5处为Miller II类,5处为Miller III类。如果患者至少有两处相邻退缩深度≥3mm,则纳入本研究。在基线(重建手术前即刻)和术后12个月进行测量。主要结局变量为完全牙根覆盖(CRC)(即100%牙根覆盖)。
所有病例愈合过程顺利,无任何并发症,如术后出血、过敏反应、脓肿或SCTG丢失。12个月时,所有患者和退缩处均获得了统计学上高度显著(P < .0001)的牙根覆盖。分别在37处Miller I类、3处Miller II类和1处Miller III类退缩处获得了CRC。平均牙根覆盖率为96%。平均角化组织宽度从基线时的2.04±0.95mm在12个月时统计学上高度显著增加(P < .004)至2.37±0.89mm。
目前的研究结果表明,所提出的治疗理念可实现多个相邻上颌Miller I、II和III类MAGR的可预测覆盖。