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Updated: Apr 23, 2026
Oral Biofilm Formation on Different Materials for Dental Implants
Published on: June 24, 2018
A randomized controlled trial comparing interim acrylic prostheses with and without cast metal base for immediate
Eloana Thomé1, Hyung Joo Lee2, Ivete Aparecida de Mattias Sartori2
1Department of Implantology, Latin American Institute of Dental Research and Education, Curitiba, PR, Brazil.
Objectives:
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.
Material And Methods:
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).
Results:
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).
Conclusions:
The different splinting protocols did not appear to affect implant stability during the 8-month observation period.
