A General Correlation of Primary Implant Stability between the Non-Invasive Methods Osstell and Periotest

Abstract

Background: Dental implants have become one of the widest spread reliable treatment options in replacing missing teeth restoring both function and esthetics. One of the important criteria for a successful osseointegration of dental implants is achieving good primary and secondary implant stability. Various invasive and non-invasive methods have been used for measuring primary implant stability. Periotest damping device, and resonance frequency analysis (RFA) with the Osstell device have been classified as non-invasive methods. Primary and secondary implant stability measurements using both devices have given a reproducible quantitative value. Aim/ Objectives: In this clinical randomized trial, a general correlation was done between the primary implant stability recorded using Osstell and that recorded using Periotest at the day of implant installation. Materials and Method: Eighty completely edentulous patients were recruited. A single implant was placed in the midline of the mandible and primary implant stability was tested on the day of implant installation using the Osttell and Periotest devices. The implant stability quotient values (ISQ) and the Periotest values (PTV) were collected and statistically analyzed to detect if there was a general correlation between the two devices regarding primary implant stability. Results: There is a general weak negative correlation between the readings of the two devices with a statistically significant difference between the Osstell readings to that of the Periotest readings (r=-0.335, -0.314). Conclusion: Periotest readings on the day of implant installation seem to be as reliable as the readings of the Osstell device for recording primary stability.