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Maxillary sinus augmentation using computer‐aided design/computer‐aided manufacturing (CAD/CAM) technology
Author(s) -
Mangano F.,
Zecca P.,
PozziTaubert S.,
Macchi A.,
Ricci M.,
Luongo G.,
Mangano C.
Publication year - 2013
Publication title -
the international journal of medical robotics and computer assisted surgery
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.556
H-Index - 53
eISSN - 1478-596X
pISSN - 1478-5951
DOI - 10.1002/rcs.1460
Subject(s) - cad , computer aided design , sinus (botany) , cone beam computed tomography , maxillary sinus , block (permutation group theory) , computer science , medicine , computer aided manufacturing , orthodontics , engineering drawing , dentistry , computed tomography , surgery , engineering , mathematics , botany , geometry , biology , genus , operating system
Background Maxillary sinus augmentation is a common method for increasing bone height for insertion of dental implants. In most cases, the graft is manually cut into a roughly appropriate shape by visual estimation during the operation; accordingly, the shape of the graft depends considerably on the experience of the surgeon. We have developed a computer‐aided design/computer‐aided manufacturing (CAD/CAM) technique to generate custom‐made block grafts for sinus augmentation, and a customized cutting guide to precisely position the lateral wall and facilitate membrane elevation, using cone‐beam computed tomography (CBCT). Methods Custom‐made blocks of hydroxyapatite (HA) were preoperatively cut to the required shape, based on a three‐dimensional (3D) simulation, using CAD/CAM technology. The custom‐made HA blocks were used for sinus augmentation. Results Five patients underwent bilateral sinus elevation with custom‐made HA blocks. Six months later, implants were placed. Two years after placement, all implants were in function. No clinical or prosthetic complications were encountered. Conclusions We present a CAD/CAM technique for the fabrication of custom‐made block grafts for sinus augmentation. Copyright © 2012 John Wiley & Sons, Ltd.