Section of Periodontology, Faculty of Medicine and Health Sciences, University Clinic of Odontology, University of Oviedo, Oviedo, Spain.
International University of Cataluña (UIC), Barcelona, Spain.
Clin Oral Implants Res. 2018 Jun;29(6):557-567. doi: 10.1111/clr.13153. Epub 2018 Apr 17.
To analyze retrospectively interproximal crestal bone loss (CBL) on external-hex "non-identical" (NI) dental implants with different surface topography, when placed in the same intra-oral location in patients with a history of chronic periodontitis following maintenance care.
The patient population consisted of 206 consecutive patients with a history of chronic periodontitis who underwent implant surgery between 2007 and 2010; 755 NI implants with different implant surfaces were placed at posterior mandibular sites: 72 machined, 145 acid-etched/machined (hybrid), and 538 anodized. Crestal bone loss measurements were carried out analyzing the calibrated digital X-rays taken at 1-year intervals as part of the maintenance program, being the time of this retrospective examination from 1 to 3 years.
At 3 years (51 patients), the mean CBL was 1.36/1.35 mm at implant/patient level (range: 0-6 mm). A higher CBL was observed at anodized surface implants, when compared to machined and hybrid implants, being the mean CBL 1.48, 0.96, and 0.77 mm, respectively (p = .005). CBL between 2 and 3.9 mm was found in 10.6% of the implants at 3 years (95% CI: 6%-15%), ≥4 mm in 5% (95% CI: 2%-8%). Anodized surface implants had CBL >2 mm at 2 years of 9% (95% CI: 6%-12%) and at 3 years of 18% (95% CI: 12%-24%), which were 2.5 times higher than hybrid implants with 3.6% (95% CI: 0.8%-4%) and 7.4% (95% CI: 0%-17%), respectively.
A higher CBL was observed in the anodized surface implants group, when compared to the hybrid implants group in patients with a history of chronic periodontitis followed during 1-3 years.
分析患有慢性牙周炎病史的患者在接受维护治疗后，同一口腔内相同位置植入不同表面形貌的外六方“非一致”（NI）牙种植体的近中颊侧骨丧失（CBL）情况。
本研究共纳入 206 例连续患者，这些患者均患有慢性牙周炎病史，并于 2007 年至 2010 年期间接受种植手术。755 个 NI 种植体被植入下颌后牙区，其中 72 个为机械加工表面，145 个为酸蚀/机械加工（混合）表面，538 个为阳极氧化表面。在维护计划中，以 1 年为间隔拍摄校准数字 X 射线，以分析 CBL 测量值，本次回顾性检查的时间为 1 至 3 年。
3 年后（51 例患者），种植体/患者水平的平均 CBL 为 1.36/1.35mm（范围：0-6mm）。与机械加工和混合表面种植体相比，阳极氧化表面种植体的 CBL 更高，分别为 1.48、0.96 和 0.77mm（p=0.005）。3 年后，有 10.6%（95%CI：6%-15%）的种植体 CBL 为 2-3.9mm，5%（95%CI：2%-8%）的种植体 CBL ≥4mm。阳极氧化表面种植体在 2 年时 CBL>2mm 的比例为 9%（95%CI：6%-12%），在 3 年时为 18%（95%CI：12%-24%），是混合表面种植体的 2.5 倍，分别为 3.6%（95%CI：0.8%-4%）和 7.4%（95%CI：0%-17%）。
患有慢性牙周炎病史的患者在接受 1-3 年的随访后，与混合表面种植体相比，阳极氧化表面种植体的 CBL 更高。
