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Extraction site healing in rats. A radiologic densitometric study
L Bodner1, I Kaffe, M M Littner
1Maurice and Gabriela Goldschleger School of Dental Medicine, Tel Aviv University, Section of Oral and Maxillofacial Surgery, Israel.
Oral Surgery, Oral Medicine, and Oral Pathology
|March 1, 1993
Summary
This study introduces a radiographic method to assess tooth socket healing in rats. Densitometry revealed increased bone density in sockets by day 7, peaking by day 28, confirming its reliability for evaluating bone formation.
Area of Science:
- Oral surgery
- Radiology
- Bone biology
Background:
- Tooth extraction sites undergo complex healing processes involving bone regeneration.
- Radiographic methods are crucial for non-invasively monitoring bone healing.
- Objective assessment of socket healing aids in understanding and improving clinical outcomes.
Purpose of the Study:
- To develop and validate a simple, objective radiographic method for evaluating extraction socket healing in rats.
- To correlate radiographic findings with established histological timelines of bone healing.
- To assess bone formation and mineralization during the healing process.
Main Methods:
- Extraction of mandibular first molars in 35 Wistar rats.
- Radiographic imaging of healed sockets using an aluminum step-wedge.
- Densitometric analysis of socket images to quantify bone density.
- Comparison of densitometry readings with aluminum step-wedge calibration.
Main Results:
- Radiographic socket density increased significantly by day 7 post-extraction.
- Maximum apical socket density was achieved by day 28.
- Crestal socket density showed a slower but progressive increase.
- Densitometric findings aligned with known histological patterns of rat socket healing.
Conclusions:
- Densitometric evaluation of extraction sockets is a reliable and objective method for assessing bone healing.
- This radiographic technique provides quantitative data on bone formation and mineralization.
- The method supports histological findings and offers a valuable tool for research in oral wound healing.