Gultekin B Alper, Sirali Ali, Gultekin Pinar, Yalcin Serdar, Mijiritsky Eitan
Department of Oral Implantology, Istanbul University Faculty of Dentistry, Istanbul, Turkey.
Department of Periodontology, Bezmialem Vakif University Faculty of Dentistry, Istanbul, Turkey.
Biomed Res Int. 2016;2016:9695389. doi: 10.1155/2016/9695389. Epub 2016 Aug 31.
. To compare marginal bone loss between subgingivally placed short-collar implants with machined collars and those with machined and laser-microtextured collars. . The investigators used a retrospective study design and included patients who needed missing posterior teeth replaced with implants. Short-collar implants with identical geometries were divided into two groups: an M group, machined collar; and an L group, machined and laser-microtextured collar. Implants were evaluated according to marginal bone loss, implant success, and probing depth (PD) at 3 years of follow-up. . Sixty-two patients received 103 implants (56 in the M group and 47 in the L group). The cumulative survival rate was 100%. All implants showed clinically acceptable marginal bone loss, although bone resorption was lower in the L group (0.49 mm) than in the M group (1.38 mm) at 3 years ( < 0.01). A significantly shallower PD was found for the implants in the L group during follow-up ( < 0.01). . Our results suggest predictable outcomes with regard to bone loss for both groups; however, bone resorption was less in the L group than in the M group before and after loading. The laser-microtextured collar implant may provide a shallower PD than the machined collar implant.
比较龈下放置的带有机械加工颈部的短颈种植体与带有机械加工及激光微纹理颈部的短颈种植体之间的边缘骨吸收情况。研究人员采用回顾性研究设计，纳入需要用种植体替代缺失后牙的患者。将具有相同几何形状的短颈种植体分为两组：M组，机械加工颈部；L组，机械加工及激光微纹理颈部。在随访3年时，根据边缘骨吸收、种植体成功率和探诊深度（PD）对种植体进行评估。62例患者接受了103枚种植体（M组56枚，L组47枚）。累积生存率为100%。所有种植体均显示出临床上可接受的边缘骨吸收，尽管3年时L组（0.49mm）的骨吸收低于M组（1.38mm）（P<0.01）。随访期间发现L组种植体的PD明显更浅（P<0.01）。我们的结果表明两组在骨吸收方面都有可预测的结果；然而，在加载前后，L组的骨吸收均少于M组。激光微纹理颈部种植体可能比机械加工颈部种植体提供更浅的PD。
