Dental Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Department of Periodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Clin Oral Investig. 2022 Feb;26(2):1637-1645. doi: 10.1007/s00784-021-04136-8. Epub 2021 Aug 16.
This retrospective study was aimed to compare the clinical and radiographic outcomes of implants with the same body design but different collar surface (laser-microtextured vs. not laser-microtextured) after functional loading.
Forty-three patients (29 females, 14 males) with 139 implants (60 laser-microtextured and 79 without laser microtexturing) were included in this study. Patients were consecutively included, and the data were collected during their implant maintenance visit. Clinical and radiographic parameters including probing depth (PD), bleeding on probing (BoP), and marginal bone loss (MBL) were recorded. In addition, the implant success index (ISI) score was determined. Statistical analysis was performed using the Mann-Whitney U test, the Kruskal-Wallis rank test, or the Pearson χ test, along with binary logistic regression (p < 0.05 was considered to be statistically significant).
The median post-loading follow-up was 24 months with 100% survival rate. There was no significant differences in terms of mean PD (3.01 mm vs. 2.63 mm), mean MBL (0.54 vs. 0.49 mm), BoP (56.7% vs. 53.2%), and ISI score between laser-microtextured collars and implants without laser microtexturing. Logistic regression revealed arch as a significant predictor of peri-implantitis (p = 0.02).
Within the limitations of this study, there was no statistically significant difference between the clinical and radiographic outcomes of implants with laser-microtextured and non-laser-microtextured collar designs. Clinical relevance Prospective studies with larger sample sizes and careful monitoring of implant placement protocols are needed for definite conclusions.
本回顾性研究旨在比较具有相同主体设计但不同表面处理（激光微纹理与无激光微纹理）的种植体在功能负载后的临床和影像学结果。
本研究纳入了 43 名患者（29 名女性，14 名男性），共植入 139 枚种植体（60 枚为激光微纹理，79 枚为无激光微纹理）。患者连续纳入，数据在种植体维护就诊时收集。记录临床和影像学参数，包括探诊深度（PD）、探诊出血（BoP）和边缘骨丧失（MBL）。此外，还确定了种植体成功指数（ISI）评分。使用 Mann-Whitney U 检验、Kruskal-Wallis 秩检验或 Pearson χ检验以及二元逻辑回归进行统计分析（p<0.05 被认为具有统计学意义）。
加载后中位随访时间为 24 个月，存活率为 100%。激光微纹理和无激光微纹理种植体的平均 PD（3.01mm 与 2.63mm）、平均 MBL（0.54mm 与 0.49mm）、BoP（56.7%与 53.2%）和 ISI 评分均无显著差异。逻辑回归显示，牙弓是种植体周围炎的一个显著预测因素（p=0.02）。
在本研究的限制范围内，激光微纹理和无激光微纹理种植体颈圈设计的临床和影像学结果之间没有统计学上的显著差异。
需要更大样本量的前瞻性研究和仔细监测种植体植入协议，以得出明确的结论。
