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Related Experiment Video

Updated: Nov 3, 2025

The Establishment of a Murine Mandibular Molar Extraction Socket Healing Model

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Published on: January 13, 2023

Decompression effects on bone healing in rat mandible osteomyelitis.

Buyanbileg Sodnom-Ish¹, Mi Young Eo¹, Ji Hye Oh¹

¹Department of Oral and Maxillofacial Surgery, Dental Research Institute, School of Dentistry, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Korea.

Scientific Reports

|June 4, 2021

Summary

Decompression drains significantly enhanced jaw osteomyelitis healing in rats by promoting bone growth and increasing osteocyte count. This technique offers improved management for jaw osteomyelitis compared to curettage alone.

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Area of Science:

Oral and Maxillofacial Surgery
Biomaterials Science
Regenerative Medicine

Background:

Jaw osteomyelitis (OM) often stems from chronic odontogenic infections.
Decompression involves releasing pressure within a cystic cavity to encourage peripheral bone regeneration.

Purpose of the Study:

To evaluate the efficacy of decompression in a rat model of jaw osteomyelitis.
To compare the bone healing effects of decompression with curettage alone.

Main Methods:

A 4-mm mandibular defect was created in Sprague-Dawley rats and infected with Staphylococcus aureus.
Four treatment groups were established: non-treatment, curettage only, curettage with decompression, and curettage with decompression and saline irrigation.
Micro-computed tomography (micro-CT) and histological analyses were performed after four weeks.

Main Results:

The decompression with saline irrigation group showed significantly higher bone mineral density and bone volume compared to the non-treatment group.
Histological examination revealed a greater number of osteocytes in the decompression with saline irrigation group.
Osteopontin (OPN) expression was notably higher in the curettage and decompression group.

Conclusions:

Decompression drains promote advanced bone healing in jaw osteomyelitis models.
The use of decompressive drains is recommended for enhancing the management of jaw osteomyelitis.
Saline irrigation alongside decompression may further improve bone regeneration outcomes.