Latimer Jessica M, Gharpure Amit S, Kahng Hahngoo J, Aljofi Faisal E, Daubert Diane M
Department of Periodontics, University of Washington School of Dentistry, Seattle, WA, USA.
Division of Oral Medicine, Infection, and Immunity, Harvard School of Dental Medicine, Boston, MA, USA.
Clin Oral Implants Res. 2021 May;32(5):598-607. doi: 10.1111/clr.13730. Epub 2021 Mar 8.
The primary aim of this study was to investigate the relationship between interproximal open contacts and peri-implant disease. The secondary aim was to assess patient-reported outcome measures in relation to contact status.
A cross-sectional study was performed on 61 patients with 142 implants adjacent to at least one natural tooth. Patients underwent a clinical examination to assess contact status and width, plaque index (PI), gingival index (GI), periodontal probing depths (PPD), and bleeding on probing (BoP). Radiographic marginal bone level was measured in vertical bitewings taken within one year. A diagnosis was given to each implant. Last, subjects completed a brief questionnaire. Rao-scott chi-squared tests and generalized estimating equations (GEE) models were used to compare outcomes between groups.
Seventy-seven (54.2%) implants were found to have ≥1 interproximal open contact. Sixty-five (45.8%) implants had closed contacts only. Implants with interproximal open contacts were significantly associated with peri-implant mucositis and peri-implantitis (p = .003) and increased prevalence of peri-implant disease (adjusted PR = 1.57; 95% CI: 1.09-2.27, p = .015). Open contact status was also associated with higher PPD (p = .045), PI scores (p = .036), and GI scores (p = .021). Open contact prevalence was 75.4% on the patient-level and 54.2% on the implant-level, involving the mesial surface of the implant restorations 68.5% of the time (p < .001).
Interproximal open contacts between implant restorations and adjacent natural teeth are a risk indicator for peri-implant disease. Adequate contact between implant restorations and natural teeth may contribute to the health of peri-implant tissues.
本研究的主要目的是调查邻面开放接触与种植体周围疾病之间的关系。次要目的是评估与接触状态相关的患者报告结局指标。
对61例患者的142颗种植体进行了横断面研究，这些种植体至少与一颗天然牙相邻。患者接受临床检查以评估接触状态和宽度、菌斑指数（PI）、牙龈指数（GI）、牙周探诊深度（PPD）和探诊出血（BoP）。在一年内拍摄的垂直咬合翼片上测量影像学边缘骨水平。对每个种植体进行诊断。最后，受试者完成一份简短问卷。使用Rao-scott卡方检验和广义估计方程（GEE）模型比较组间结局。
发现77颗（54.2%）种植体有≥1个邻面开放接触。65颗（45.8%）种植体仅有封闭接触。有邻面开放接触的种植体与种植体周围黏膜炎和种植体周围炎显著相关（p = .003），且种植体周围疾病的患病率增加（调整后的PR = 1.57；95% CI：1.09 - 2.27，p = .015）。开放接触状态还与更高的PPD（p = .045）、PI评分（p = .036）和GI评分（p = .021）相关。在患者层面，开放接触患病率为75.4%，在种植体层面为54.2%，其中68.5%的情况涉及种植体修复体的近中面（p < .001）。
种植体修复体与相邻天然牙之间的邻面开放接触是种植体周围疾病的一个风险指标。种植体修复体与天然牙之间的充分接触可能有助于种植体周围组织的健康。
