Tokgöz Selen Ergin, Bilhan Hakan
Private Dental Practice, Prosthodontist, Dentaglobal Oral Health Centre, Bayraklı/İzmir, Turkey.
Department of Periodontology, School of Dentistry, Faculty of Health Witten/Herdecke University, Alfred-Herrhausen Str. 45, Witten, Germany.
J Adv Prosthodont. 2021 Feb;13(1):46-54. doi: 10.4047/jap.2021.13.1.46. Epub 2021 Feb 23.
The design of the implant-abutment complex is thought to be responsible for marginal bone loss (MBL) and might affect the condition of the peri-implant tissues. This the present study aimed to evaluate the influence of the implant-abutment complex on MBL and the peri-implant tissues in partially edentulous patients treated with dental implants and determine the most advantageous design.
A total of ninety-one endosseous implants with different designs of implant-abutment complex [tissue level-TL (n = 30), platform switch-PS (n = 18), and platform match-PM (n = 43)] were reviewed for MBL, Probing Pocket Depth (PPD) and Bleeding on Probing (BoP). MBL was calculated for first year of the insertion and the following years.
The median MBL for the PM implants (2.66 ± 1.67 mm; n = 43) in the first year was significantly higher than those for the other types ( =.033). The lowest rate of MBL (0.61 ± 0.44 mm; n = 18) was observed with PS implants ( =.000). The position of the crown-abutment border showed a statisticallysignificant influence ( =.019) and a negative correlation (r=-0.395) on MBL. BoP was found significantly higher in PM implants ( =.006). The lowest BoP scores were detected in PS implants, but the difference was not significant ( =.523). The relation between PPD and connection type revealed no statistically significant influence ( >.05).
Within the limitations of the present study, it may be concluded that PS implants seem to show better peri-implant soft tissue conditions and cause less MBL.
种植体-基台复合体的设计被认为是导致边缘骨吸收（MBL）的原因，并且可能影响种植体周围组织的状况。本研究旨在评估种植体-基台复合体对接受牙种植治疗的部分牙列缺损患者的MBL和种植体周围组织的影响，并确定最有利的设计。
对91颗具有不同种植体-基台复合体设计[组织水平-TL（n = 30）、平台转换-PS（n = 18）和平台匹配-PM（n = 43）]的骨内种植体进行MBL、探诊深度（PPD）和探诊出血（BoP）的评估。计算植入后的第一年及随后几年的MBL。
PM种植体在第一年的MBL中位数（2.66±1.67 mm；n = 43）显著高于其他类型（P =.033）。PS种植体的MBL率最低（0.61±0.44 mm；n = 18）（P =.000）。冠-基台边界位置对MBL有统计学显著影响（P =.019）且呈负相关（r = -0.395）。发现PM种植体的BoP显著更高（P =.006）。PS种植体的BoP得分最低，但差异不显著（P =.523）。PPD与连接类型之间的关系未显示出统计学显著影响（P>.05）。
在本研究的局限性内，可以得出结论，PS种植体似乎显示出更好的种植体周围软组织状况，并导致更少的MBL。
