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Resonance Frequency Analysis in Assessing Implant Stability: A Retrospective Analysis
The International Journal of Prosthodontics
|July 9, 2019
Summary
Low initial implant stability quotient (ISQ) values may indicate a higher risk of dental implant failure. While ISQ generally increases over time, no significant correlation was found with marginal bone level changes.
Area of Science:
- Dental Implantology
- Biomaterials Science
- Periodontology
Background:
- Implant stability quotient (ISQ) is a key indicator of dental implant success.
- Long-term data on ISQ and its correlation with clinical parameters are valuable for understanding implant performance.
- Marginal bone level (MBL) changes are critical markers for peri-implant health.
Purpose of the Study:
- To retrospectively assess implant stability quotient (ISQ) values in patients followed from 1998 to 2014.
- To evaluate correlations between ISQ and clinical parameters, specifically marginal bone level (MBL) changes.
- To analyze the long-term clinical performance of resonance frequency analysis (RFA) in dental implantology.
Main Methods:
- Retrospective analysis of 383 implants in 173 participants (65 men, 108 women; age 21-85).
- ISQ, MBL, and implant location recorded at surgery and recall.
- Mixed-model analysis used to assess ISQ variations and correlations with MBL and demographic factors (time, gender, location).
Main Results:
- A 10-year cumulative implant survival rate of 95% was observed.
- Failed implants showed significantly lower ISQ values at surgery and baseline compared to surviving implants (P < .05).
- No statistically significant correlation was found between ISQ changes and MBL changes (P = .211), despite an inverse relationship.
Conclusions:
- Low initial ISQ values may predict higher risk of dental implant failure.
- ISQ values can exhibit diverse patterns of change over time, with an overall increasing trend.
- A direct correlation between resonance frequency analysis (RFA) and MBL change was not identified in this long-term study.
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