Revascularization after surgical repositioning of one-tooth dento-osseous segments

Vascularization, revascularization, and bone healing were studied after two different surgical techniques for surgical repositioning of single-tooth dento-osseous segments in adult mongrel dogs. Microangiographic and histologic studies of both one-stage and two-stage techniques for immediate surgical repositioning of single-tooth dento-osseous segments showed early but transient vascular ischemia, minimal osteonecrosis, and osseous union between most of the osteotomized segments. The attached soft tissue provided an adequate vascular pedicle for immediate repositioning of small dento-osseous segments by interdental and subapical osteotomies. The results of these clinically analogues studies support the clinical use of techniques that maximize the attachment of the gingiva to the mobilized dento-osseous segment.