Thomé Eloana, Lee Hyung Joo, Sartori Ivete Aparecida de Mattias, Trevisan Roseli Latenek, Luiz Jaques, Tiossi Rodrigo
Department of Implantology, Latin American Institute of Dental Research and Education, Curitiba, PR, Brazil.
Department of Prosthodontics, Latin American Institute of Dental Research and Education, Curitiba, PR, Brazil.
Clin Oral Implants Res. 2015 Dec;26(12):1414-20. doi: 10.1111/clr.12470. Epub 2014 Sep 19.
This randomized controlled trial used resonance frequency analysis (RFA) to assess the effects of the presence or absence of a cast rigid bar splinting multiple implants in the stability of immediately loaded implants.
Twenty-nine edentulous patients were randomly divided into two groups: G1 with full-arch implant-fixed prostheses and G2 with multiple implant splinting via acrylic resin denture bases. All implants were immediately loaded. RFA measurements assessed implant stability at three different times (T0--at baseline, T1--4 months, and T2--8 months. Wilcoxon and Friedman tests and a multivariate model with repeated measures for longitudinal data were used for statistical comparison (α = 0.05).
Twenty-nine patients were assessed (G1 = 15 and G2 = 14). Implant and prostheses survival rates were 100% for both groups after the 8-month observation period and no significant differences in the mean ISQ values were found at the different implant stability assessment times (P > 0.05).
The different splinting protocols did not appear to affect implant stability during the 8-month observation period.
本随机对照试验采用共振频率分析（RFA）来评估在即刻负重种植体稳定性方面，使用或不使用铸造刚性杆夹板固定多个种植体的效果。
29例无牙颌患者被随机分为两组：G1组采用全牙弓种植固定修复，G2组通过丙烯酸树脂义齿基托进行多个种植体夹板固定。所有种植体均即刻负重。通过RFA测量在三个不同时间点（T0——基线时、T1——4个月时、T2——8个月时）评估种植体稳定性。采用Wilcoxon检验、Friedman检验以及针对纵向数据的重复测量多元模型进行统计比较（α = 0.05）。
对29例患者进行了评估（G1组 = 15例，G2组 = 14例）。在8个月观察期后，两组种植体和修复体的生存率均为100%，并且在不同种植体稳定性评估时间点，平均种植体稳定性商数（ISQ）值未发现显著差异（P > 0.05）。
在8个月观察期内，不同的夹板固定方案似乎并未影响种植体稳定性。
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