Korean J Oral Maxillofac Radiol.  2009 Mar;39(1):19-25.

Radiologic study of the healing process of the extracted socket of beagle dogs using cone beam CT

• Choi DH
• Lee W
• Kim D
• Lee BD

Abstract

PURPOSE
To longitudinally observe the healing process of extracted socket and the alterations of the residual ridge in healthy adult dogs using cone beam CT (CBCT).
MATERIALS AND METHODS
The mandibular premolars of two beagle dogs were removed and the extraction sites were covered with the gingival tissue. CBCTs (3D X-ray CT scanner, Alphard vega, Asahi Co.) were taken at baseline and at 1 week interval for 12 weeks. Radiographic density of extracted wounds was measured on normalized images with a custom-made image analysis program. The amount of alveolar crestal resorption after the teeth extraction was measured with a reformatted three-dimensional image using CBCT. Bony healing pattern of extracted wound of each group was also longitudinally observed and analyzed.
RESULTS
Dimensional changes occurred during the first 6 weeks following the extraction of dogs' mandibular premolars. The reduction of the height of residual ridge was more pronounced at the buccal than at the lingual aspect of the extraction socket. Radiographic density of extracted wounds increased by week 4, but the change in density stabilized after week 6. New bone formation was observed at the floor and the peripheral side of extracted socket from week 1. The entrance of extracted socket was sealed by a hard-tissue bridge at week 5.
CONCLUSION
The healing process of extracted wound involved a series of events including new bone formation and residual ridge resorption.

Keyword

Tomography, Computed; Dog; Mandible; Wound; Healing

MeSH Terms

Adult
Animals
Bicuspid
Cone-Beam Computed Tomography
Dogs
Floors and Floorcoverings
Humans
Imaging, Three-Dimensional
Mandible
Osteogenesis
Tomography Scanners, X-Ray Computed
Tooth