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Updated: Jul 16, 2026
04:19
The Establishment of a Murine Mandibular Molar Extraction Socket Healing Model
Published on: January 13, 2023
Spontaneous bone formation on the maxillary sinus floor in association with an extraction socket
1Department of Oral and Maxillofacial Surgery, Oral Science Research Center, College of Dentistry, Yonsei University, Seoul, South Korea. ysjoms@yumc.yonsei.ac.kr
International Journal of Oral and Maxillofacial Surgery
|March 21, 2007
Summary
Spontaneous bone formation occurred in a maxillary sinus after impacted tooth extraction. This healing process allowed for successful dental implant surgery without additional sinus augmentation.
Area of Science:
- Oral and Maxillofacial Surgery
- Regenerative Medicine
- Dental Implantology
Background:
- Surgical extraction of impacted maxillary teeth can lead to complications, including displacement into the maxillary sinus.
- Maxillary sinus floor elevation is a common procedure to augment bone for dental implants.
- Understanding spontaneous bone regeneration is crucial for optimizing treatment outcomes.
Observation:
- An impacted maxillary second premolar was displaced into the maxillary sinus during extraction.
- The displaced tooth was retrieved using a sinus elevation technique.
- Post-extraction healing revealed spontaneous bone fill in the sinus floor defect.
Findings:
- New bone formation occurred in the maxillary sinus within 5 months following tooth extraction and sinus elevation.
- The regenerated bone was sufficient to support subsequent dental implant placement without further sinus augmentation.
- Osteogenic potential of the sinus mucosa and blood clot likely contributed to bone regeneration.
Implications:
- This case highlights the potential for significant spontaneous bone regeneration in the maxillary sinus.
- It suggests that in some cases, sinus augmentation may not be necessary after tooth displacement into the sinus.
- Further research into the mechanisms of sinus bone regeneration could refine surgical protocols and improve implant success rates.
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