Reliability and Agreement of Three Devices for Measuring Implant Stability Quotient in the Animal Ex Vivo Model

Resonance frequency analysis (RFA) is the most extended method for measuring implant stability. The stability quotient (ISQ) measure obtained by different RFA devices; however, inter- and intra-rater reliability agreement of these instruments remain unknown. Thirty implants were placed in three pig mandibles. ISQ was measured parallel perpendicular (lingual) to peg axis with Osstell® Beacon, Penguin® MegaISQ® two investigators furthermore, one performed a test-retest. Intraclass correlation coefficient calculated assess intra- inter-rater reliability. Pearson used agreement. coefficients ranged from 0.20 0.65 Beacon; 0.57 0.86 Penguin®; −0.01 0.60 MegaISQ®. highest values using (66.3) measurement; lowest, (60.1) measurement. other devices Beacon showed lower than Penguin®. had good both perpendicular, best parallel.