Chambrone Luiz Armando, Chambrone Leandro
Department of Stomatology, School of Dentistry, University of São Paulo, São Paulo, Brazil.
Am J Dent. 2009 Dec;22(6):339-44.
To assess the clinical results obtained with laterally positioned flap (LPF) for the treatment of localized gingival recessions (GR).
32 systemically healthy, non-smoking patients, with one Miller Class I or II buccal GR of > or = 3 mm, were treated with a LPF. At baseline the following measurements were recorded: (1) recession depth; (2) probing depth; (3) clinical attachment level; and (4) width of keratinized tissue. At 24 months post-surgery, all clinical measurements were repeated.
Mean root coverage obtained with the laterally positioned flaps was 93.8%. Complete root coverage was obtained in 62.5% of the recipient sites. The mean recession depth decreased from 4.71 +/- 1.30 mm to 0.28 +/- 0.42 mm. Statistically significant improvements were found for all clinical parameters from baseline to 24 months (P < 0.05). Patients with maxillary recessions recorded statistically superior gains in the width of keratinized tissue than patients with mandibular recessions. The results of the present study demonstrated that the LPF is an effective procedure to cover localized gingival recession. Moreover, both groups (i.e., patients with maxillary or mandibular recessions) recorded similar significant improvements from baseline to 24-month examination, except for the width of keratinized tissue which was statistically higher for maxillary recessions.
评估侧向移位瓣（LPF）治疗局限性牙龈退缩（GR）的临床效果。
32名全身健康、不吸烟的患者，患有一处米勒I类或II类颊侧牙龈退缩且退缩深度≥3mm，接受了侧向移位瓣治疗。在基线时记录以下测量值：（1）退缩深度；（2）探诊深度；（3）临床附着水平；（4）角化组织宽度。术后24个月，重复所有临床测量。
侧向移位瓣获得的平均牙根覆盖率为93.8%。62.5%的受植位点实现了完全牙根覆盖。平均退缩深度从4.71±1.30mm降至0.28±0.42mm。从基线到24个月，所有临床参数均有统计学上的显著改善（P<0.05）。上颌退缩患者的角化组织宽度增加在统计学上优于下颌退缩患者。本研究结果表明，侧向移位瓣是覆盖局限性牙龈退缩的有效方法。此外，两组（即上颌或下颌退缩患者）从基线到24个月检查均有类似的显著改善，但角化组织宽度在上颌退缩患者中统计学上更高。
