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January 1972

Lateral Alveolo-Maxillary Osteotomies: Revascularization Studies

Author Affiliations

St. Paul, Minn
From the Department of Otolaryngology, University of Minnesota Medical School, St. Paul.

Arch Otolaryngol. 1972;95(1):18-23. doi:10.1001/archotol.1972.00770080066004

Revascularization studies were done on lateral alveolomaxillary osteotomies of primates. The techniques used were histologic examinations and 85Sr and carmine gelatin injections. In adult healthy animals, all the bony segments and mucoperiosteal flaps survived. The teeth adjacent to the osteotomies showed evidence of fibrosis in the periodontal space and pulp with associated mild absorption to the root structure. Those teeth surrounded by unviolated bone were vital and showed normal histology. Three animals with dental and peridontal disease or unerupted teeth developed complications. Clinical application for the maxillofacial surgeon are reinsertion and preservation of free dental osseous segments are feasible even in adverse situations and regular follow-up dental radiographs with special attention to the teeth adjacent to the osteotomies is mandatory since absorption may occur.

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