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

Abstract

Objective: 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. Therefore, it is very important to detect the accuracy of the most popular noninvasive devices (Periotest, Osstell) that are used in measuring 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. Subjects & Methods: The stability was measured for 32 immediate implants (16 males, 16 females 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 1 st and 2 nd 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. The Osstell system may exhibit better reliability compared to Periotest in measuring the implant stability at time of placement and during healing, up to 12 months.