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

Grant number: 10/12114-2
Support Opportunities:Regular Research Grants
Start date: July 01, 2011
End date: June 30, 2012
Field of knowledge:Health Sciences - Dentistry - Oral and Maxillofacial Surgery
Principal Investigator:Adelina Maria da Silva
Grantee:Adelina Maria da Silva
Host Institution: Faculdade de Medicina Veterinária (FMVA). Universidade Estadual Paulista (UNESP). Campus de Araçatuba. Araçatuba , SP, Brazil

Abstract

The most common dental diseases in cats are: periodontal disease, feline odontoclastic resorptive lesions and feline chronic gingivostomatitis. These diseases often cause the loss of teeth or require dental extraction. Complicated crown fracture, with pulp exposure, is an injury that may also require extraction. The filling of extraction sockets has been recommended to promote osseous growth and maintain alveolar ridge and maxilla strength. A variety of bone graft materials have been tried, including autografts, allografts, synthetic materials, osteoinductive substances and osteogenic cells. The objective of the present study will be to evaluate bone formation resulting from the placement of autogenous cancellous bone or bioactive glass into fresh extraction sockets in cats. Eighteen adult cats will be submitted to unilateral extraction of maxillary canine tooth and divided into three groups. In group 1, control, the extraction socket will be left empty. In group 2, the extraction socket will be filled with autogenous cancelous bone from the iliac crest and in group 3, with bioactive glass. Cats will be euthanized at 4 weeks postoperative. Healing will be evaluated by clinical, radiographic, macroscopic, histopathological and histometric exams. (AU)

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