Development of a dental implant mobility measurement system using an inductive sensor

Area of Science:

• Biomedical Engineering
• Dental Implantology
• Signal Processing

Background:

• Accurate estimation of dental implant stability is vital for successful diagnosis and treatment planning in implant dentistry.
• Existing methods for assessing implant stability may have limitations in precision or scope.

Purpose of the Study:

• To develop and validate a new system for measuring dental implant mobility using an inductive sensor and signal analysis.
• To investigate the relationship between implant-tissue interfacial conditions and measured mobility parameters.

Main Methods:

• A novel system utilizing an inductive sensor and amplification adaptor was developed to measure implant movement.
• Impulse response signals were acquired and analyzed using power spectrum analysis.
• In vitro experiments simulated various implant-tissue conditions using an artificial acrylic model with drilled holes of varying depth and diameter.

Main Results:

• The average peak frequency of the power spectrum demonstrated a statistically significant linear relationship (P<0.01) with both hole depth and diameter.
• The system's ability to differentiate between various simulated conditions was confirmed through ANOVA testing.

Conclusions:

• The developed system provides a reliable method for quantifying dental implant mobility.
• The findings suggest that peak frequency analysis of impulse response signals can effectively assess implant-tissue interfacial conditions and stability.