Objective: The aim of this retrospective study was to assess the marginal
bone levels around platform-switched dental implants placed subcrestally
in partially or totally edentulous patients who had been treated in a private
practice.
Methods: A total of 200 implants placed in 64 patients, with a mean follow-
up time of 5.3±1.7 years, were included in the study. Implants were
placed 0.5 mm subcrestally via one- or two-stage surgical approach. Data
regarding the distribution and diameter of the implants, the type of the
prosthetic restoration, and marginal bone levels were assessed by one calibrated
examiner.
Results: Overall, the mean marginal bone loss was found to be 0.82±1.6
mm, and 66% of the implants (n=81) showed no bone loss, whereas 28%
(n=35) showed bone loss >1mm, and 20% (n=25) showed bone loss >2mm.
Out of 18 implants in use for 1–3 years, 14 of them showed no bone loss.
Among implants that were in function for 3–5 years, 25% (n=15) showed
bone loss >1mm, and 12% (n=7) showed bone loss >2mm. In this study, the
majority of the implants were in use for more than 5 years (n=122). Out of
them, 66% (n=81) showed no bone loss, whereas 28% (n=35) showed bone
loss >1 mm, and 20% (n=25) showed bone loss >2mm.
Conclusion: Within the limits of this retrospective study, one can say
that slight amount of marginal bone loss is observed around the platform-
switched implants placed subcrestally in a long-term follow-up. However,
further studies are needed to confirm this finding.
Primary Language | English |
---|---|
Journal Section | Articles |
Authors | |
Publication Date | June 15, 2018 |
Submission Date | April 18, 2017 |
Published in Issue | Year 2018 Volume: 8 Issue: 2 |