Atrophic mandible reconstruction using calvarial bone grafts and implant-supported overdentures: radiographic assessment of autograft healing and adaptation.
ABSTRACT Bone grafting constitutes a vital surgical procedure in the management of severely atrophic mandibles. In this regard, calvarial bone autografts are applied in the reconstruction of wide mandibular defects caused by edentulousness and long-term denture-related resorption. Grafts are used as a framework to augment the residual ridge and provide implant stability for further prosthetic restoration. On the basis that radiographic evidence corresponds to biologic changes in bone response to transplantation and loading, the goal of this article is to document the radiographic assessment of calvarial autologous bone grafts in the recipient site. Panoramic radiographs were used to evaluate bone changes occurring during both the graft healing period and graft adaptation after implant loading. Emerging data show that conventional panoramic radiography may have an effect on the investigation of bone grafts and provide initial information about graft incorporation and adaptation.
- SourceAvailable from: Leonardo Perez Faverani[Show abstract] [Hide abstract]
ABSTRACT: paciente de 65 anos, pontuando todas as características envolvidas no planejamento, assim como da execução do tratamento proposto. Os resultados foram excelentes, com a obtenção de grande volume ósseo após o enxerto da maxila, o que proporcionou a instalação favorável dos implantes na maxila atrófi ca. As próteses protocolos trouxeram maior conforto para as funções mastigatórias e fonéticas, além de promoverem melhor assentamento dos tecidos moles da face. Unitermos – Maxila; Enxertos; Próteses implantossuportadas; Implantes dentários. ABSTRACT The use of autogenous bone grafts for cranial vault is one of the options for the reconstruc-tion of the atrophic maxilla. It has several advantages, mainly due to lower postoperative morbidity when compared to that obtained from the iliac crest, and lower resorption rate during graft incorporation. Thus, oral rehabilitation with dental implants has become a highly predictable treatment modality, particularly in large reconstructions. This work aims to discuss the advantages of autogenous bone graft from the skull in the rehabilita-tion of the atrophic maxilla by means of a clinical case report of a 65 years-old patient, detailing all the features involved in planning, as well as the execution of proposed treatment. The results showed an excellent prognosis for success, obtaining high bone volume after grafting of the maxilla, which provided a very favorable implant placement in the maxillary arch. The prostheses have brought greater comfort for mastication and phonetics, and promoted a better accomodation of the facial soft tissues.01/2012;
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ABSTRACT: Edentulous patients usually request implant supported/fixed rehabilitation. Ridge resorption after teeth loss usually affect three-dimensional implant position. Vertical and/or horizontal bone augmentation procedures are often the only choice the clinician has to deliver prosthetic guided restoration. Gold standard for augmentation procedures such as sinus lift, onlay or inlay grafts, is still autologous bone. The patient in this report underwent a pre-prosthetic reconstruction of the jaws with parietal bone, followed by fixtures insertion and fixed prosthetic rehabilitation. This clinical report aims to underline the importance of multidisciplinary treatment to optimize the results of the rehabilitation.Oral & implantology. 04/2009; 2(2):2-13.
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ABSTRACT: To evaluate graft types used for maxillary sinus augmentation and review success rates of dental implants inserted in these areas, analyzing the graft materials used, implant surface types and the moment of implant placement. A meta-analytic study reviewing articles on sinus augmentation published during the last ten years. 3,975 implants placed in sinus augmentations (with bony windows) were registered, of which 3,749 implants survived, a survival rate of 94.3%. When performing sinus augmentation, bone substitute materials are just as effective as autologous bone, whether used alone or in combination with autologous bone. Implant surface treatments can have an important effect on implant survival and it would appear that roughened surfaces are the best option. When implants are inserted simultaneously to grafting, a higher failure rate can be expected.Medicina oral, patologia oral y cirugia bucal 12/2011; 17(1):e135-9. · 1.10 Impact Factor