Repeatability of the resonance frequency analysis values in implants with a new technology

Area of Science:

• Biomaterials Science
• Dental Implantology
• Biomedical Engineering

Background:

• Assessing the reliability of the PenguinRFA system for dental implant stability is crucial.
• Understanding the relationship between implant stability and insertion torque is essential for successful procedures.

Purpose of the Study:

• To evaluate the reproducibility and repeatability of the PenguinRFA system.
• To analyze implant stability quotient (ISQ) values across different implant types.
• To correlate ISQ values with insertion torque during implant placement.

Main Methods:

• 120 rough surface implants were placed in bovine bone (Type II and III).
• Insertion torque was recorded, followed by primary stability measurement using PenguinRFA and Osstell ISQ devices.
• Multiple measurements were taken with each device's transducers for reliability assessment.

Main Results:

• The PenguinRFA system exhibited high reliability with Intraclass Correlation Coefficients (ICC) of 0.933 and 0.944.
• Reproducibility was high at 0.906.
• A low correlation was observed between ISQ and insertion torque (r values ranging from 0.193 to 0.533, with p<0.000 for most bone type II correlations).

Conclusions:

• The PenguinRFA system offers excellent reproducibility and repeatability, making it valuable for monitoring implant stability over time.
• The correlation between insertion torque and resonance frequency analysis (RFA) is low.
• No significant differences in ISQ were found between implant types.