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. 2012 Sep 1;17(5):e801-6.
doi: 10.4317/medoral.17861.

Resonance frequency analysis-reliability in third generation instruments: Osstell mentor®

Mariano Herrero-Climent  1 , Matteo Albertini, Jose-Vicente Rios-Santos, Pedro Lázaro-Calvo, Ana Fernández-Palacín, Pedro Bullon
Affiliations

Resonance frequency analysis-reliability in third generation instruments: Osstell mentor®

Mariano Herrero-Climent et al. Med Oral Patol Oral Cir Bucal. .

Abstract

Few studies assess repeatability and reproducibility in registers of resonance frequency analysis (a value of dental implant stability).

Objective: Few studies assess repeatability and reproducibility in resonance frequency analyses (implant stability evaluation). This study is aimed at assessing reliability (repeatabilty and reproducibility) in the Osstell Mentor® system using the intraclass correlation coefficient (ICC) as the statistical method.

Study design: ISQ measurements of RFA were carried out by means of the Osstell Mentor® instrument in 58 implants in 19 patients. Six measurements were performed on each implant by means of two different Smart-Pegs (I and II). Three consecutive measurements were registered with each transducer.

Results: Average ISQ varied from 72.43 to 72.60 and 73.26 in the first, second and third measurements, respectively with the SamrtPeg I and from 72.98 to 73.26 and 73.74 in the first, second and third measurements, respectively with the SamrtPeg II . Exactly equal values were observed in 10.43 and 12.1% of the cases with Smart-Pegs I and II, respectively. The intraclass correlation coefficient was 0.96 and 0.96 for Smart Pegs I and II, respectively. Repeatability and reproducibility was 0.97 for both Smart-Pegs I and II.

Conclusions: The RFA system contributed by Osstell Mentor® renders almost perfect reproducibility and repeatability, as proven by statistical analysis carried out by means of ICC with 95% confidence level. This instrument contributes highly reliable RFA measurements in dental implants.

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Figures

Figure 1
Figure 1
Means and interquartile difference of the obtained values with different Smart-Pegs (I and II) (3 measurements with each one).
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