Liu Hao-Hao, Hu Yi, Zhang Chen, Chen Mei-Hua
Department of Periodontology, Shanghai Stomatological Hospital and School of Stomatology, Fudan University; Shanghai Key Laboratory of Craniomaxillofacial Development and Diseases. Shanghai 200001, China. E-mail:
Shanghai Kou Qiang Yi Xue. 2022 Oct;31(5):507-511.
To evaluate the effect of keratinized tissue width (KTW) on periodontal regenerative surgery for the treatment of intrabony defects.
The clinical data of 14 patients (44 intrabony defect sites) treated with periodontal regenerative surgery were retrospectively analyzed at baseline and 2-year of follow-up. Forty four sites were divided into KTW2 mm group and KTW≤2 mm group according to KTW at baseline. Periodontal clinical indicators of the 2 groups were analyzed by SPSS 25.0 software package.
At 2-year post-treatment, probing depth (PD) and clinical attachment loss (CAL) in the 2 groups were decreased significantly compared with those at baseline(P<0.05). There was no significant difference in ΔPD, but ΔCAL in KTW2 mm group was significantly greater than that in KTW≤2 mm group.
Periodontal regenerative surgery for the treatment of intrabony defects can effectively reduce periodontal pocket inflammation, decrease periodontal pocket depth and increase the level of attachment. When the width of the keratinized gingiva is insufficient(KTW≤2 mm), the regeneration of the attachment level obtained by surgery is limited, and the efficacy of regenerative surgery is poor.
评估角化组织宽度（KTW）对牙周再生手术治疗骨内缺损的效果。
回顾性分析14例接受牙周再生手术治疗的患者（44个骨内缺损部位）在基线和随访2年时的临床资料。根据基线时的KTW将44个部位分为KTW>2mm组和KTW≤2mm组。采用SPSS 25.0软件包分析两组的牙周临床指标。
治疗后2年，两组的探诊深度（PD）和临床附着丧失（CAL）均较基线时显著降低（P<0.05）。两组间的ΔPD无显著差异，但KTW>2mm组的ΔCAL显著大于KTW≤2mm组。
牙周再生手术治疗骨内缺损可有效减轻牙周袋炎症，降低牙周袋深度，增加附着水平。当角化龈宽度不足（KTW≤2mm）时，手术获得的附着水平再生有限，再生手术效果较差。
