Int J Periodontics Restorative Dent. 2021 Nov-Dec;41(6):e233-e242. doi: 10.11607/prd.4819.
This retrospective study compares clinical and radiographic results of implants with and without a laser-microtextured collar placed in patients with a past history of periodontitis after 10 years of follow-up. A total of 57 implants (29 implants with laser-microtextured collar, 28 implants with a smooth collar) were placed in 35 patients. After 10 years of follow up, the survival rates (SRs) were 87.9% and 84.8% for implants with and without a laser-microtextured collar, respectively. No statistically significant differences (P > .05) were found between groups in terms of full-mouth plaque and bleeding scores. However, a statistically significant difference (P < .05) was recorded in terms of probing depth (PD) and marginal bone loss (mBL). Within the limitations of this study, implants with a laser-microtextured collar and implants with a smooth collar placed in patients with a past history of periodontitis yielded no statistically significant differences in SRs after 10 years of follow-up. However, implants with a laser-microtextured collar showed lower PD and mBL compared to implants with a smooth collar.
本回顾性研究比较了在有牙周病史的患者中，使用和不使用激光微纹理颈圈的种植体 10 年后的临床和影像学结果。共有 35 名患者共植入 57 个种植体（29 个带激光微纹理颈圈，28 个带光滑颈圈）。经过 10 年的随访，带和不带激光微纹理颈圈的种植体的存活率（SR）分别为 87.9%和 84.8%。两组之间在全口菌斑和出血评分方面没有统计学差异（P>.05）。然而，在探诊深度（PD）和边缘骨丧失（mBL）方面存在统计学差异（P<.05）。在本研究的限制范围内，在有牙周病史的患者中，使用激光微纹理颈圈和光滑颈圈的种植体在 10 年的随访后，SR 没有统计学差异。然而，与光滑颈圈的种植体相比，激光微纹理颈圈的种植体具有更低的 PD 和 mBL。
