Resumo

CARINI, F. et al. Pre-implant recostruction with autologous bone from mental symphysis during transverse maxillary bone atrophies rehabilitation: surgery protocol. Avances en Periodoncia [online]. 2009, vol.21, n.1, pp.11-19. ISSN 2340-3209.

Introduction: in the case studies the moderate atrophies (Cawood and Howell’s 4^th class) is observed a transverse thickness lower than 4 mm, therefore carring out a riabilitation by prosthesis appears very difficoult. Aims: Implanto-prosthesis rehabilitation of moderate maxillary atrophies (Cawood and Howell’s 4^th class) (1). Materials and Methods: 42 implants in 18 patients (8 males and 10 females, of medium age of 47.1 years), in an atrophic maxilla rehabilitated through interposition of autologous bone drawed from mental simphysis. The implantans were located after 6 months from the cross-sectional increase operation of edentulous crest. We have considered: the osteointegration related to bony loss, the perimplant soft tissue condition, depth index of gingival pocket, plaque and bleeding, and even patients satisfaction index. Results: at a complete follow-up no implants were lost. The mean of marginal perimplant bony loss was 0.17 mm. Conclusions: to manage moderate atrophies we have shown a technique with a good prognosis by using autologous drawings from intraoral centers, wich let successfull execution of implanto-prosthesic treatments. Clinical implications: even if the tecnique involves two simultaneous surgery sites, needing an high compliance by the patient, is unquestionable the vantage to can operate without narcosis, only availing of local anesthesia.

Palavras-chave : Bone atrophy; autologous bone graft; chin symphysis.

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