• Mahvish Wahad Khan, Naveed Inayat, Muhammad Sohail Zafar, and Abdul Mueed Zaigham.
• Mahvish Wahad Khan, BDS, FCPS Assistant Professor, Department of Prosthodontics Avicenna Medical & Dental College, Phase IX, DHA, Bedian Road, Lahore, Pakistan.
• Pak J Med Sci. 2024 Jul 1; 40 (6): 126112661261-1266.

ObjectiveRecent years have seen a rise in the usage of dental implants to restore lost teeth. The stability of a dental implant is the main factor in determining its success. Implant stability is influenced by various factors. Several approaches have been employed clinically to evaluate stability at different time intervals. One non-invasive way to assess implant stability is by resonance frequency analysis. Utilizing the resonance frequency analysis method, this study seeks to understand how implant length and diameter affect primary and secondary stability.MethodsThe current prospective study was conducted in the Prosthodontics Department of Institute of Dentistry, CMH Lahore Medical College. The duration of the study was six months. A total of 90 implants of sizes 4.5 x 8.5 mm and 4 x 10mm were placed. Resonance frequency measurements were recorded using Osstell™ AB device for primary stability at implant insertion and at 12 weeks for secondary stability. All the measurements were carried out by only one of the researchers to minimize inter-observer bias.ResultsThe average primary stability was 70.33±6.60, and the average secondary stability was 71.43±5.44. The data was stratified for age, gender, and implant site, and the mean primary and secondary stability of both sizes didn't show any statistically significant differences.ConclusionWithout forfeiting implant stability, both implant sizes (4 x 10mm and 4.5 x 8.5mm) can be used interchangeably, depending on available space and anatomical constraints.Copyright: © Pakistan Journal of Medical Sciences.

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