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


METHODS
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.
Department of Dentistry, University of Seville, Facultad de Odontología, C/Avicena, s/n, 41009 Sevilla, Spain.
Mariano
M
Herrero-Climent
Matteo
M
Albertini
Jose-Vicente
JV
Rios-Santos
Pedro
P
Lázaro-Calvo
Ana
A
Fernández-Palacín
Pedro
P
Bullon
D003757:Dental Implantation / Q000295:instrumentation*; D015921:Dental Implants; D006801:Humans; D015203:Reproducibility of Results
D015921:Dental Implants