Rosa Enéias Carpejani, Deliberador Tatiana Miranda, Nascimento Tuanny Carvalho de Lima do, Kintopp Cibele Cândida de Almeida, Orsi Juliana Shaia Rocha, Wambier Letícia Maíra, Khajotia Sharukh Soli, Esteban Florez Fernando Luis, Storrer Carmen Lucia Mueller
Universidade Positivo, School of Health Sciences, Graduate Program in Dentistry, Curitiba, PR, Brazil.
The University of Oklahoma Health Sciences Center, Division of Dental Biomaterials, Department of Restorative Sciences, Oklahoma City, Oklahoma, USA.
Braz Oral Res. 2019 Sep 30;33(suppl 1):e068. doi: 10.1590/1807-3107bor-2019.vol33.0068. eCollection 2019.
The objective of this systematic review was to compare the conical internal connection (IC) with the external hexagonal connection (EH) on the occurrence of marginal bone loss (ΔMBL). Different databases were used to carry out the selection of the elected studies. The studies were judged according to the risk of bias as "high", "low" and "unclear" risk. For the meta-analysis we included only studies that could extract the data of ΔMBL, survival rate (SR) and probing depth (PD). No statistically significant differences were found for ΔMBL data at one, three- and five-year survival rates between implant connections (p <0.05), however statistically significant differences were found for PD between EH and IC implants (1-year follow-up) -0.53 [95%CI -0.82 to -0.24, p = 0.0004]. This present systematic review demonstrated that there are no significant differences between IC and EH implants for both ΔMBL and SR at 1, 3 e 5 years after functional loading, although better PD values were observed for implants pertaining to the IC connections. Considering the high heterogeneity, more well-delineated, randomized clinical trials should be conducted.
本系统评价的目的是比较锥形内连接（IC）和外六角连接（EH）在边缘骨丢失（ΔMBL）发生率方面的差异。使用不同的数据库来筛选入选研究。根据偏倚风险将研究判定为“高”、“低”和“不清楚”风险。对于荟萃分析，我们仅纳入能够提取ΔMBL、生存率（SR）和探诊深度（PD）数据的研究。在种植体连接的1年、3年和5年生存率时，ΔMBL数据未发现统计学显著差异（p<0.05），然而，在EH和IC种植体之间的PD方面发现了统计学显著差异（1年随访）-0.53 [95%CI -0.82至-0.24，p = 0.0004]。本系统评价表明，在功能加载后1年、3年和5年，IC和EH种植体在ΔMBL和SR方面均无显著差异，尽管与IC连接相关的种植体观察到更好的PD值。考虑到高度异质性，应开展更多明确的随机临床试验。
