Fate of autologous and fresh-frozen allogeneic block bone grafts used for ridge augmentation. A CBCT-based analysis

Autor(es)

Spin-Neto, Rubens ^[1] ; Stavropoulos, Andreas ^{[2, 3]} ; Violin Dias Pereira, Luis Antonio ^[4] ; Marcantonio, Jr., Elcio ^[1] ; Wenzel, Ann ^[5]

Afiliação do(s) autor(es)

^[1] Univ Estadual Paulista, UNESP, Dept Periodontol, Araraquara Dent Sch, Sao Paulo - Brazil

^[2] Aarhus Univ, Sch Dent, Dept Periodontol, Aarhus - Denmark

^[3] CEPBR, Athens - Greece

^[4] Univ Estadual Campinas, UNICAMP, Inst Biol, Dept Histol & Embryol, Sao Paulo - Brazil

^[5] Aarhus Univ, Sch Dent, Dept Oral Radiol, Aarhus - Denmark

• Tipo de documento: Artigo Científico
• Fonte: Clinical Oral Implants Research; v. 24, n. 2, p. 167-173, FEB 2013.
• Citações Web of Science: 25

Resumo

Objectives To evaluate dimensional changes in autologous (AT) and fresh-frozen allogeneic (AL) block bone grafts 6 months after alveolar ridge augmentation. Material and methods Twenty-six partially or totally edentulous patients treated either with fresh-frozen AL bone or AT bone onlay block grafts prior to implant placement (13 patients in each group), were included in this analysis. Patients received CBCT (i-CAT Classic) examinations prior to surgery and 14 days and 6 months after grafting. Differences in alveolar ridge area among the various observation times were evaluated by planimetric measurements on two-dimensional CBCT images of the grafted regions. Nineteen grafted blocks from each group were evaluated. Results Significant increase in alveolar ridge dimensions, allowing implant placement, was obtained with both types of grafts 6 months after grafting; no significant differences in alveolar ridge area were observed between the groups at the various observation times. However, graft resorption in the AL group was significantly larger compared to that in the AT group at 6 months. Conclusions Larger bone graft resorption was seen in patients treated with fresh-frozen AL bone than in those treated with AT bone 6 months following alveolar ridge augmentation. (AU)

• Processo FAPESP: 08/09207-9 - Enxertos ósseos homólogos em humanos: avaliação imunológica, tomográfica, histológica e histométrica de sua incorporação e capacidade de osseointegrar implantes
• Beneficiário: Elcio Marcantonio Junior
• Modalidade de apoio: Auxílio à Pesquisa - Regular