Method of Surgical Planning

摘要

A method of pre-operatively forming a surgical splint configured to receive a patient's dentition can include combining a 3-D facial computer model and a 3-D dental computer model. The method includes the step of obtaining a 3-D facial computer model of at least the patient's maxilla, mandible, and dentition from a CT scanner and the step of obtaining a 3-D dental computer model of the patient's dentition with an optical scanner. The 3-D dental computer model is then combined with the 3-D facial computer model to form a composite virtual model. The composite virtual model can be manipulated into a planned post-operative shape, and a surgical splint can be custom constructed to match the planned post-operative shape. The surgical splint can be configured to receive the patient's dentition.

主权项

1. A method of pre-operatively forming a surgical splint configured to receive a patient's dentition when the patient's skull is in a post-operative shape, the method comprising:
obtaining a 3-D facial computer model in a computer of at least the patient's maxilla, mandible, and dentition, the 3-D facial computer model including first virtual dentition, wherein at least a portion of the first virtual dentition has a first virtual surface geometry that defines at least one first fiduciary marker, the at least one first fiduciary marker defining a first location that identifies a first anatomical feature of the first virtual dentition; obtaining a 3-D optical scan of the patient's dentition in the computer, the 3-D optical scan including second virtual dentition, wherein at least a portion of the second virtual dentition has a second surface geometry that defines at least one second fiduciary marker, the at least one second fiduciary marker defining a second location that identifies a second anatomical feature of the second virtual dentition; aligning the first fiduciary marker with the second fiduciary marker; and after the aligning step, replacing the first virtual dentition of the 3-D facial computer model with the second virtual dentition to form a composite 3-D virtual model, the composite 3-D virtual model having third virtual dentition in a planned post-operative configuration.