Jing Wu Di, Xu Li, Xu Xiao, Hou Jian Xia, Li Xiao Tong
Chin J Dent Res. 2019;22(1):9-19. doi: 10.3290/j.cjdr.a41770.
To evaluate the prevalence of periodontal biotypes in patients with skeletal Class III malocclusion and to explore its association with age, gender, other periodontal clinical parameters and width of keratinized gingiva (WKG).
Data were collected for the buccal-middle site of 310 anterior teeth from 26 subjects who received periodontally accelerated osteogenic orthodontics (PAOO) surgery before orthodontic treatment. Univariate and multivariate analysis were performed to calculate and test the correlations between periodontal biotype and age, gender and bleeding index (BI), gingival recession (GR), plaque index (PLI), probing depth (PD) and WKG.
Prevalence of thin periodontal biotype was 33.9% in the anterior region. Mean WKG was 4.37 mm. Univariate analysis showed that a moderately positive correlation was found between WKG and thick biotype (r = 0.544, P < 0.001). A low positive correlation was detected between mandibular teeth and thick biotype (r = 0.387, P < 0.001) and a low negative correlation was detected between GR and thick biotype (r = -0.308, P < 0.001). Multi-level logistic regression showed that biotype was significantly associated with dental arch (odds ratio [OR] = 0.174, P = 0.015) and WKG (OR = 2.043, P = 0.002). No significant associations were detected between biotype and other factors.
Dental arch and WKG were associated with periodontal biotype in patients with skeletal Class III malocclusion.
评估骨性III类错牙合患者牙周生物型的患病率，并探讨其与年龄、性别、其他牙周临床参数及角化龈宽度（WKG）的相关性。
收集26例在正畸治疗前接受牙周加速成骨正畸术（PAOO）手术患者的310颗前牙颊侧中部的数据。进行单因素和多因素分析，以计算和检验牙周生物型与年龄、性别、出血指数（BI）、牙龈退缩（GR）、菌斑指数（PLI）、探诊深度（PD）及WKG之间的相关性。
前部区域薄型牙周生物型的患病率为33.9%。平均WKG为4.37mm。单因素分析显示，WKG与厚型生物型之间存在中度正相关（r = 0.544，P < 0.001）。下颌牙与厚型生物型之间存在低度正相关（r = 0.387，P < 0.001），GR与厚型生物型之间存在低度负相关（r = -0.308，P < 0.001）。多水平逻辑回归显示，生物型与牙弓（优势比[OR] = 0.174，P = 0.015）和WKG（OR = 2.043，P = 0.002）显著相关。未检测到生物型与其他因素之间存在显著关联。
骨性III类错牙合患者的牙弓和WKG与牙周生物型有关。
