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

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. Key words:Dental implants, RFA, ISQ, implant stability, Osstell.

Accuracy of Resonance Frequency Analysis by Third Generation Osstell®

“…The results showed high statistical correlation between the reproducibility and repeatability measurements tested by Osstell ® and are in agreement with other authors of clinical studies with similar objectives (Herrero-Climent et al, 2012;Nedir et al, 2004). However, the assay showed ISQ values with a decreasing tendency when the first and the last measurements recorded for the repeatability test were compared.…”

Assessment of osstell isq’s reliability for implant stability measurement: A cross-sectional clinical study

“…(23-24). RFA allows implant monitoring through sequential stability measurements, as well as indirect assessment of the influence of osseous remodelling around the implant on secondary implant stability.…”

Resonance Frequency Analysis of Sinus Augmentation by Osteotome Sinus Floor Elevation and Lateral Window Technique

“…The use of RFA as a reproducible, noninvasive test of implant stability has been well supported. [19][20][21][22] Moreover, as a metric of stiffness at the interface between the bone and the implant, RFA can serve a diagnostic purpose at placement, during healing, and at subsequent follow-up as the transformation from mechanical stability to biological stability occurs with osseointegration. 23 The purpose of this retrospective clinical study was to use RFA to quantitatively compare the stability of implants placed in the atrophic posterior maxilla using 3 sinus augmentation techniques: 1) OSFE, 2) 1-step LWT, and 3) 2-step LWT.…”