Measurement of mini-implant stability using resonance frequency analysis

Area of Science:

• Orthodontics
• Biomaterials Science
• Dental Implantology

Background:

• Assessing orthodontic mini-implant stability is crucial for successful treatment outcomes.
• Current methods for stability assessment may have limitations.
• Resonance frequency analysis (RFA) is a potential non-invasive technique for evaluating implant stability.

Purpose of the Study:

• To determine the suitability of RFA for measuring orthodontic mini-implant stability.
• To evaluate if the resonance frequency of mini-implants aligns with the Osstell ISQ device's frequency range.
• To investigate the influence of implant size on resonance frequency measurements.

Main Methods:

• Modified SmartPegs of the Osstell ISQ device were used with 110 orthodontic mini-implants inserted into porcine bone.
• RFA measurements were taken parallel and perpendicular to bone fibers.
• Comparisons were made with Periotest measurements and cone-beam computed tomography (CBCT) for compacta thickness.

Main Results:

• RFA yielded a mean Implant Stability Quotient (ISQ) of 36.36 ± 2.67.
• Significant differences in measurements were observed between parallel and perpendicular directions for both RFA and Periotest (P > .001).
• High correlations were found between RFA and Periotest (r = -0.90), RFA and compacta thickness (r = 0.71), and Periotest and compacta thickness (r = -0.64).

Conclusions:

• Resonance frequency analysis (RFA) is a feasible method for assessing orthodontic mini-implant stability.
• RFA can be utilized for clinical evaluation of mini-implant stability.
• This method may enable stability-related loading protocols to decrease implant failure rates.