Casado Priscila Ladeira, Pereira Marcelo Constante, Duarte Maria Eugenia Leite, Granjeiro José Mauro
Center of Clinical Research - Orthopedics and Traumatology National Institute - INTO - Rio de Janeiro, RJ, Brazil.
Braz Dent J. 2013;24(2):136-41. doi: 10.1590/0103-6440201302006.
The success rates in implant dentistry vary significantly among patients presenting previous history of periodontitis. The aim of this study was to evaluate if patients with history of chronic periodontitis (CP) are more susceptible to peri-implant disease (PID) than those without history of CP. Two hundred and fifteen individuals, under periodontal maintenance, presenting 754 osseointegrated implants, were selected for this study. The patients were divided into two groups according to the peri-implant status: Control group (patients without PID; n=129) and PID group (patients with PID; n=86). All peri-implant regions were clinically evaluated, including analyses of mucosa inflammation, edema and implant mobility. Periapical radiography assessed the presence of peri-implant bone loss. According to the clinical/radiographic characteristics, patients in Control and PID groups were diagnosed as having CP or not. Nominal variables were evaluated by the chi-square test. The distribution of numeric variables was analyzed by Shapiro-Wilk test. Student's t-test and Mann-Whitney test were used to analyze significant differences for parametric and non-parametric data. A p-value <0.05 was considered significant. There was a highly significant correlation between CP history and PID (p<0.0001). Patients with CP had 4 times more chance of developing PID than patients with healthy periodontal tissues. Also, CP patients showed higher bleeding on probing (p=0.002) and bone loss around implant (p=0.004) when compared with patients without CP. In conclusion, history of CP is a high risk factor for the development of PID, irrespective of gender or region of implant placement.
在有牙周炎病史的患者中，种植牙的成功率差异显著。本研究的目的是评估有慢性牙周炎（CP）病史的患者是否比没有CP病史的患者更容易患种植体周围疾病（PID）。本研究选取了215名接受牙周维护治疗、植入754颗骨结合种植体的个体。根据种植体周围状况将患者分为两组：对照组（无PID的患者；n = 129）和PID组（有PID的患者；n = 86）。对所有种植体周围区域进行临床评估，包括黏膜炎症、水肿和种植体松动度分析。根尖片评估种植体周围骨吸收情况。根据临床/影像学特征，将对照组和PID组的患者诊断为是否患有CP。名义变量采用卡方检验进行评估。数值变量的分布采用Shapiro-Wilk检验进行分析。采用Student's t检验和Mann-Whitney检验分析参数数据和非参数数据的显著差异。p值<0.05被认为具有统计学意义。CP病史与PID之间存在高度显著的相关性（p<0.0001）。有CP的患者发生PID的几率是牙周组织健康患者的4倍。此外，与没有CP的患者相比，CP患者在探诊时出血更多（p = 0.002），种植体周围骨吸收更明显（p = 0.004）。总之，CP病史是发生PID的高风险因素，与性别或种植体植入部位无关。
