Clinical experiences of digital model surgery and the rapid-prototyped wafer for maxillary orthognathic surgery.
OBJECTIVE
The aim of this study was to present our clinical experience regarding the production and accuracy of digitally printed wafers for maxillary movement during the bimaxillary orthognathic surgery.


METHODS
Fifty-five consecutive patients requiring maxillary orthognathic surgery were included in this study. The plan for digital model surgery (DMS) was dictated by the surgical plans for each clinical case. We carried out digital model mounting, DMS, wafer printing, and confirmation of the accuracy of the procedure.


RESULTS
Moving the reference points to the target position in DMS involved a mean error of 0.00-0.09 mm. The mean errors confirmed by the model remounting procedure with the printed wafer by DMS were 0.18-0.40 mm (for successful cases; n = 42) and 0.03-1.04 mm (for poor cases; n = 3).


CONCLUSIONS
The accuracies of the wafers by DMS were similar to those for wafers produced by manual model surgery, although they were less accurate than those produced by DMS alone. The rapid-prototyped interocclusal wafer produced with the aid of DMS can be an alternative procedure for maxillary orthognathic surgery.
Kim
Bong Chul
BC
Division of Oral and Maxillofacial Surgery, Armed Forces Chuncheon Hospital, Seoul, Korea.
Lee
Chae Eun
CE
Park
Wonse
W
Kim
Moon-Key
MK
Zhengguo
Piao
P
Yu
Hyung-Seog
HS
Yi
Choong Kook
CK
Lee
Sang-Hwy
SH
D002508:Cephalometry / Q000379:methods; D017076:Computer-Aided Design; D019465:Craniofacial Abnormalities / Q000601:surgery; D003725:Dental Articulators; D006801:Humans; D021621:Imaging, Three-Dimensional / Q000379:methods; D007574:Jaw Relation Record / Q000295:instrumentation*; D008310:Malocclusion / Q000601:surgery; D008437:Maxilla / Q000002:abnormalities / Q000601:surgery*; D008953:Models, Anatomic; D003765:Models, Dental; D056948:Orthognathic Surgical Procedures / Q000295:instrumentation / Q000379:methods*; D010347:Patient Care Planning; D014057:Tomography, X-Ray Computed / Q000379:methods; D014584:User-Computer Interface