Tissue alterations after tooth extraction with and without surgical trauma: a volumetric study in the beagle dog.

Abstract

OBJECTIVES:

The aim of this study is to evaluate whether tooth extraction without the elevation of a muco-periosteal flap has advantageous effects on the resorption rate after tooth extraction.

MATERIAL AND METHODS:

In five beagle dogs polyether impressions were taken before the surgery. The roots of the first and second pre-molars (P(1) and P(2)) were extracted and the sites were assigned to one of the following treatments: treatment group (Tx) 1, no treatment; Tx 2, surgical trauma (flap elevation and repositioning); Tx 3, the extraction socket was filled with BioOss Collagen and closed with a free soft-tissue graft; Tx 4, after flap elevation and repositioning, the extraction socket was treated with BioOss Collagen and a free soft-tissue graft. Impressions were taken 2 and 4 months after surgery. The casts were scanned, matched together with baseline casts and evaluated with digital image analysis.

RESULTS:

The "flapless groups" demonstrated significant lower resorption rates both when using socket-preservation techniques and without. Furthermore, socket-preservation techniques yielded better results compared with not treating the socket.

CONCLUSION:

The results demonstrate that leaving the periosteum in place decreases the resorption rate of the extraction socket. Furthermore, the treatment of the extraction socket with BioOss Collagen and a free gingival graft seems beneficial in limiting the resorption process after tooth extraction.

• Authors: Stefan Fickl, Otto Zuhr, Hannes Wachtel, Wolfgang Bolz, Markus Huerzeler
• Journal: Journal of clinical periodontology (J Clin Periodontol) Vol. 35 Issue 4 Pg. 356-63 (Apr 2008) ISSN: 1600-051X [Electronic] United States
• PMID: 18353082 (Publication Type: Journal Article)

Chemical References

• Bio-Oss
• Bone Substitutes
• Minerals

Topics

• Alveolar Bone Loss (etiology, prevention & control)
• Analysis of Variance
• Animals
• Bone Substitutes
• Dogs
• Gingiva (transplantation)
• Minerals
• Oral Surgical Procedures (adverse effects)
• Periodontal Ligament (surgery)
• Surgical Flaps
• Tooth Extraction (adverse effects)
• Tooth Socket (surgery)