Checchi Luigi, Montevecchi Marco, Gatto Maria Rosaria Antonella, Trombelli Leonardo
Department of Oral Surgery, School of Dentistry, University of Bologna - Alma Mater Studiorum, Italy.
J Clin Periodontol. 2002 Jul;29(7):651-6. doi: 10.1034/j.1600-051x.2002.290710.x.
BACKGROUND/AIMS: In this retrospective study, the efficacy of periodontal therapy and maintenance in preventing tooth loss was evaluated.
The study included 92 patients with 2310 teeth diagnosed with chronic adult periodontitis and observed over a mean period of 6.7 years, with each patient receiving surgical therapy in two or more quadrants. The group was divided into two subgroups: those who complied with the recommended maintenance schedule and those whose compliance was erratic. Individual tooth prognosis was assigned according to radiographic parameters.
At the completion of active periodontal therapy, 2184 teeth were present. During the maintenance period, 44 teeth were lost due to periodontal reasons. Tooth mortality revealed a mean annual adjusted tooth loss rate of 0.07/year. Molars were the teeth most frequently lost; canines the least. The number of teeth lost in the three prognostic categories was: one (0.07%) for teeth with good prognoses, 21 (3.63%) for questionable prognoses and 22 (11.34%) for hopeless prognoses. Patients complying erratically with supportive periodontal therapy were at a 5.6 times greater risk for tooth loss following active therapy than regularly compliant patients.
The results demonstrated a low tooth mortality rate in periodontal patients following active treatment combined with a strict maintenance program.
背景/目的：在这项回顾性研究中，评估了牙周治疗及维护在预防牙齿缺失方面的疗效。
该研究纳入了92例患者，共2310颗诊断为慢性成人牙周炎的牙齿，平均观察期为6.7年，每位患者在两个或更多象限接受了手术治疗。该组分为两个亚组：遵循推荐维护计划的患者和依从性不稳定的患者。根据影像学参数确定单颗牙齿的预后。
在积极的牙周治疗结束时，共有2184颗牙齿。在维护期，有44颗牙齿因牙周原因缺失。牙齿死亡率显示平均每年调整后的牙齿缺失率为0.07/年。磨牙是最常缺失的牙齿；犬齿最少。在三种预后分类中缺失的牙齿数量分别为：预后良好的牙齿有1颗（0.07%），预后可疑的有21颗（3.63%），预后无望的有22颗（11.34%）。积极治疗后，牙周支持治疗依从性不稳定的患者牙齿缺失风险比依从性良好的患者高5.6倍。
结果表明，积极治疗并结合严格维护计划的牙周病患者牙齿死亡率较低。
