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Med Oral Patol Oral Cir Bucal. 2012 Sep 1;17(5):e801-6.

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

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  • 1Department of Dentistry, University of Seville, Facultad de Odontología, C/Avicena, s/n, 41009 Sevilla, Spain.

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.

PMID:
22322519
[PubMed - indexed for MEDLINE]
PMCID:
PMC3482525
Free PMC Article
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