Retrospective Cohort Study: Five-Thread Guideline for Predicting Dental Implant Stability in Fresh Extraction Sites

Area of Science:

• Dentistry
• Oral Surgery
• Biomaterials Engineering

Background:

• Predicting primary implant stability in fresh extraction sites is clinically challenging.
• Accurate stability forecasting is crucial for treatment decisions and patient communication.
• Existing methods for assessing implant stability in immediate extraction sockets require refinement.

Purpose of the Study:

• To evaluate the predictive accuracy of the 5-thread guideline (5-TG) for primary dental implant stability.
• To determine if engaging at least 5 implant threads in native bone reliably indicates high primary stability.
• To establish a framework for assessing implant stability probabilities in fresh extraction sites.

Main Methods:

• Retrospective cohort study design.
• Analysis of 150 dental implant cases in fresh extraction sites.
• Evaluation of the 5-thread guideline (5-TG) based on thread engagement in native bone.

Main Results:

• The 5-thread guideline (5-TG) demonstrated significant predictive accuracy (p < .0000207).
• The 5-TG effectively categorizes stability probabilities into none, low, moderate, or high.
• A strong correlation was observed between engaging ≥5 threads and achieving high primary implant stability.

Conclusions:

• The 5-thread guideline (5-TG) is a reliable tool for predicting primary implant stability in fresh extraction sites.
• This guideline aids clinicians in making informed decisions for dental implant placement.
• The 5-TG enhances the predictability of immediate dental implant procedures.