Resonance frequency analysis (RFA) and insertional torque (IT) stability comparisons of implants placed using...

Area of Science:

• Dental Implantology
• Biomaterials Science
• Oral and Maxillofacial Surgery

Background:

• Achieving adequate implant stability in the posterior maxilla with poor bone density is a clinical challenge.
• Insertional Torque (IT) and Resonance Frequency Analysis (RFA) are objective measures for monitoring osseointegration.
• Understanding primary and secondary stability is crucial for successful dental implant outcomes.

Purpose of the Study:

• To quantitatively compare the primary and secondary stability of dental implants placed via osteotome versus conventional drilling in soft bone.
• To evaluate the correlation between Insertional Torque (IT) and Resonance Frequency Analysis (RFA) measurements.
• To assess the impact of surgical technique on implant stability over 90 days.

Main Methods:

• Sixteen implants were randomized into two groups: osteotome technique and conventional drilling technique.
• Insertional Torque (IT) was recorded during implant placement.
• Resonance Frequency Analysis (RFA), measured as Implant Stability Quotient (ISQ), was recorded at baseline, 30, 60, and 90 days post-placement.

Main Results:

• Average IT was 36 Ncm and average RFA was 61.5 ISQ.
• The osteotome group showed an increase in RFA from baseline to 30 days, while the conventional drilling group showed a decrease.
• No statistically significant difference in IT or RFA was observed between the two groups at any time interval, with similar results at 90 days.

Conclusions:

• Insertional Torque (IT) and Implant Stability Quotient (ISQ) values can fluctuate due to local anatomical factors like bone density.
• Further clinical and radiographic studies are necessary to establish the routine use of RFA and IT in various bone types (Type 1-4).
• Accurate stability measurements are critical for implant success, potentially guiding loading protocols and improving overall success rates.