Filling of extraction sockets with autogenous bone in cats

Abstract

PURPOSE: To evaluate bone healing in the extraction socket of the feline mandibular canine tooth after grafting. METHODS: Eighteen adult cats were submitted to unilateral extraction of mandibular canine tooth and divided into three groups. In group 1 (n=6), control, the extraction socket was left empty. In group 2 (n=6), the extraction socket was filled with autogenous cancelous bone from the iliac crest and in group 3 (n=6), with cortical bone chips from the iliac crest. Cats were euthanized at 6 weeks postoperative. RESULTS: Immediate postoperative radiographs in dorsoventral view showed a radiolucent area at the extraction wound. A decreased radiolucency was observed on the radiographs taken at 6 weeks postoperative. Histological examination showed formation of woven bone within the extraction socket. The percentage of newly formed bone within the extraction socket, measured by the histometry, showed no statistically significant difference among the values of the three groups (Kruskal-Wallis'test p>0.05) (group 1: 52.54 ± 15.46, group 2: 50.51 ± 5.01, group 3: 51.85 ± 9.52). CONCLUSION: The bone regeneration observed in the extraction sockets filled with autogenous cancellous bone or autogenous cortical bone chips was similar to that observed in the control sites, given an observation period of 6 weeks after extraction of the mandibular canine tooth.

Filling of extraction sockets of feline maxillary canine teeth with autogenous bone or bioactive glass

“…Intraoral radiology provided better results than the extraoral radiographic technique which was used in another experiment in cats 8 . But probably, the best images of extraction wounds are obtained with microcomputed tomography scan, as demonstrated by Kumarswamy et al Mean values somewhat lower, around 50%, were observed in the histometric examinations of another experiment performed on cats, with an observation period of six weeks, in which the extraction sockets of mandibular canine teeth were filled with autogenous cancellous bone or cortical bone chips 8 .…”

“…The use of a variety of materials to fill extraction sockets has been studied in order to accelerate bone regeneration, maintain alveolar ridge and reinforce the resistance of the maxilla or mandible [1][2][3][4][5][6][7][8] . Some of the more common indications for extraction of teeth in cats include crown fracture with pulp exposure, periodontal disease, feline odontoclastic resorptive lesions and feline chronic gingivostomatitis [9][10][11][12][13] .…”

Applied Feline Oral Anatomy and Tooth Extraction Techniques

“…9 Autogenous bone (cancellous bone and cortical bone chips) as well as allograft- based (demineralized bone of the same species) and ceramic-based (calcium phosphate, calcium sulfate and bioglass) bone graft substitutes are most commonly used in veterinary dentistry, although they are not routinely needed in extraction sites. 12,13 Gauze swabs (size 3 x 3 inches, 7.5 x 7.5 cm) allow digital control of hemorrhage during tooth extraction procedures. Lavage with refrigerated lactated Ringer ‘s solution may also provide good hemostasis.…”

Bridging Plate Development for Treatment of Segmental Bone Defects of the Canine Mandible

“…6,7,9,10,13 The general goals of the treatment are reestablishing bone continuity, obtaining appropriate dental occlusion, and restoring functional aspects. 2,6,15,16 Bone plates and screws are the most frequent alloplastic implants used for mandibular reconstruction. 3,6,[8][9][10]16 In general, reconstruction plates are rigid implants used on the ventral aspect of the mandible in order to stabilize the remaining segments to preserve the facial contour and occlusion as well as to stabilize bone grafts in a suitable position when used.…”