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KMID : 0362820110300010079
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Journal of the Korean Academy of Implant Dentistry
2011 Volume.30 No. 1 p.79 ~ p.84
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Alveolar bone reconstruction and multiple dental implantations with Guided bone generation in the complete edentulous patients: Case Report
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Ohn Byung-Hun
Park Seul-Ji
Chee Young-Deok
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Abstract
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The treatment of completely edentulous patients by implant restoration is difficult that most edentulous patients have vertical and/or horizontal bone resorption of residual ridge and lack of resistance of the oral mucosa. When multiple implantations are planned for the severely atrophied alveolar ridge, usually delayed implant placement is recommended after the procedure of onlay block bone graft. Block bone graft has the advantage of maintaining the contour of bone and stabilizing the reconstructed site. It however, shows the reduced capability of osteogenesis and has slower revasculization tendency and more possibility of complication in the recipient site. Guided bone generation(GBR) using particulate bone is the most popular procedure, when bone graft is needed like the cases of dehiscence or fenestration wound with implant installations. Even though this method provides convenience for operator and satisfaction for patients, it is not usually indicated for reconstruction of severely atrophied alveolar bone because of its poor prognosis. These are the cases we performed minimal invasive approach with GBR procedure for the case of complete edentulous arch with
large bone defects using the absorbable membrane rather than using non-absorbable membrane or onlay block bone graft to make sufficient bone reconstruction for multiple implant placement.
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KEYWORD
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Complete edentulism, Implant, GBR
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