Department of Dentistry, Federal University of Jequitinhonha and Mucuri Valleys, Diamantina, MG, Brazil.
J Periodontol. 2013 Jun;84(6):768-75. doi: 10.1902/jop.2012.120479. Epub 2012 Aug 16.
Root exposure due to gingival recession (GR) can cause cervical dentin hypersensitivity (CDH), which is characterized by tooth pain. The aim of this study is to evaluate the effect of surgical defect coverage on CDH and quality of life in patients with GR.
Twenty-five GRs in maxillary canines and premolars were treated with coronally positioned flap plus connective tissue graft. GR dimensions, amount of keratinized gingiva, and clinical attachment level were evaluated. CDH was assessed by thermal and evaporative stimuli. Quality of life was assessed by use of the Oral Health Impact Profile-14 (OHIP-14) questionnaire. All parameters were evaluated at baseline and after 3 months.
Statistically significant reduction in CDH (P <0.001), significant reduction in impact of oral health on quality of life (P <0.001), and significant changes in periodontal parameters were observed after 3 months. Mean defect coverage of 67.90% was achieved, with full coverage in 11 cases. Percentage defect coverage showed no correlation with air blast-stimulated CDH (P = 0.256) or cold stimulus (P = 0.563). The OHIP-14 physical disability dimension was correlated with the amount of keratinized tissue (P = 0.010) and also with defect coverage (P = 0.035).
Surgical defect coverage may reduce CDH and improve patient quality of life, by keratinized gingiva augmentation and impact on physical disability, irrespective of amount of defect coverage.
由于牙龈退缩（GR）导致的牙根暴露会引起牙颈部牙本质过敏症（CDH），其特征是牙齿疼痛。本研究旨在评估冠状皮瓣加结缔组织移植术对 GR 患者 CDH 和生活质量的影响。
对 25 例上颌尖牙和前磨牙的 GR 采用冠状皮瓣加结缔组织移植术进行治疗。评估 GR 尺寸、角化龈量和临床附着水平。通过热和蒸发刺激评估 CDH。使用口腔健康影响量表-14（OHIP-14）问卷评估生活质量。所有参数均在基线和 3 个月时进行评估。
3 个月后，CDH 显著减少（P <0.001），对生活质量的口腔健康影响显著降低（P <0.001），牙周参数也发生了显著变化。平均缺损覆盖率达到 67.90%，11 例实现了完全覆盖。缺损覆盖率与空气刺激引起的 CDH（P = 0.256）或冷刺激（P = 0.563）之间无相关性。OHIP-14 身体残疾维度与角化组织量（P = 0.010）和缺损覆盖率（P = 0.035）相关。
通过角化龈的增加和对身体残疾的影响，手术缺损覆盖可以减轻 CDH 并改善患者的生活质量，而与缺损覆盖的量无关。
