Division of Periodontics, Piracicaba Dental School/State University of Campinas, Piracicaba, São Paulo, Brazil.
Division of Restorative Dentistry, Amazonas State University, Manaus, Amazonas, Brazil.
J Clin Periodontol. 2018 Oct;45(10):1255-1265. doi: 10.1111/jcpe.12999.
To evaluate clinical and radiographic characteristics in peri-implant marginal tissues in patients with a history of chronic periodontitis, rehabilitated using tissue-level or bone-level implants.
Using a split-mouth design, 20 patients with a history of chronic periodontitis were selected and received two different implants, tissue-level group (n = 20) and the bone-level group (n = 20). Peri-implant probing depth, relative peri-implant mucosal margin position, relative peri-implant clinical attachment level, peri-implant plaque index and peri-implant bleeding on probing were evaluated at prosthesis installation, 1, 3, 6, 12 and 24 months after implant loading. Radiographic marginal bone level was evaluated at implant insertion, prosthesis installation, 6 and 24 months after implant loading.
The mean difference of peri-implant marginal bone resorption from implant installation to 24 months in function was 0.75 ± 1.12 mm for the tissue-level group and 0.70 ± 0.72 mm for the bone-level group. No statistically significant difference was found between groups at all assessment periods for clinical and radiographic peri-implant evaluation.
Under a rigid supportive therapy, both approaches performed likewise regarding clinical and radiographic parameters for rehabilitation of patients with a history of chronic periodontitis.
评估患有慢性牙周炎病史患者的种植体边缘组织的临床和影像学特征，这些患者使用组织水平或骨水平种植体进行修复。
采用分口设计，选择 20 名患有慢性牙周炎病史的患者，分别接受两种不同的种植体，即组织水平组（n=20）和骨水平组（n=20）。在修复体安装时、植入后 1、3、6、12 和 24 个月，评估种植体探诊深度、相对种植体黏膜边缘位置、相对种植体临床附着水平、种植体周围菌斑指数和种植体探诊出血情况。在植入时、修复体安装时、植入后 6 和 24 个月，评估影像学边缘骨水平。
在功能方面，从植入到 24 个月，组织水平组的种植体边缘骨吸收平均差值为 0.75±1.12mm，骨水平组为 0.70±0.72mm。在所有评估期，两组在临床和影像学种植体评估方面均无统计学差异。
在严格的支持性治疗下，这两种方法在患有慢性牙周炎病史患者的修复方面表现相似，在临床和影像学参数方面均表现良好。
