Accuracy of chairside-milled CAD/CAM drill guides for dental implants
Ritter, L.; Palmer, J.; Bindl, A.; Irsen, S.; Cizek, J.; Karapetian, V.-E.; Zöller, J.E.
International Journal of Computerized Dentistry 17(2): 115-124
2014
ISSN/ISBN: 1463-4201 PMID: 25098159 Document Number: 675546
To describe a chairside method for producing implant guides based solely on digital data and present a first assessment of in vitro accuracy on plaster models. Twenty-four implants were planned and pilot drillings were performed according to a new protocol, which is based on the registration of CBCT and CAD/CAM data. Chairside-milled one-piece drill guides were used to transfer the virtual plan into reality. Accuracy measurements were acquired. Chairside-milled drill guides were successfully fabricated and accuracy for pilot drillings was between 0.17 and 1.3 mm. Within the limits of this experimental study, chairside-milled drill guides are feasible and do not require any preparation before CBCT scanning.