Assessment of Osstell and Periotest systems in measuring immediate dental implants stability.

Document Type : Original Article

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1 oral medicine - faculty of dentistry - Al-Azhar university - cairo

2 Oral medicine - faculty of dentistry - Alazhar university – cairo

Abstract

Objective: measurement of implant stability through various techniques could assist the clinician in an optimal treatment plan, support decisions regarding implant loading, provides better case documentation, support good communication and increase trust, so it is very important to detect the accuracy of the most popular noninvasive device (Periotest, Osstell) that measure implant stability for evaluating the long term success of implant.
The aim of this study was to evaluate the Osstell and Periotest devices' accuracy in measuring the immediate dental implants stability.
Subject and Methods: The stability was measured for 32 immediate implants (16 male, 16 female with age range from 25 to 45 years old) by the two devices at the time of implant placement, 6 and 12 months after surgery for each observer. Measurements were performed on four groups according to the site of placement of the immediate implants and classified as anterior area of the maxilla (group A), posterior area of the maxilla (group B), anterior area of the mandible (group C) and posterior area of the mandible (group D).
Results: Intra class Correlation Coefficient indicated less reproducibility by the Periotest device compared to Osstell device. This result was confirmed by using the Quantile- Quantile Plot and the distribution of Osstell values was almost linear to the normal distribution in the 1st and 2nd measurements. The Periotest values differed from the normal distribution.
Conclusion: Both the Osstell (ISQs) and Periotest (PTVs) systems may indicate reliable assessments of implant stability.
Key words: Implant stability, osstell, periotest

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