[The study on three-dimensional laser scanning of dental model and computer aided set-up].
A new laser scanning and measurement method was introduced for dental model three-dimensional form. A laser diode was used as scanning light source, two CCDs (they were fixed specially) received the diffused light reflected from the dental model. The dental model rotating-moved back and forth, and horizontal moved from one side to another along horizontal axis simultaneously. Whole dental model can be scanned in 3 minutes, general precision was up to 0.03 mm. The computer can display distinctly three-dimensional images of dental model in different directions and give three-dimensional coordinate data, distance, angle, and remove teeth and make set-up after scanning. With advantages of high precision, fast speed and excellent object, the new method can be of an important applied value in orthodontic clinic.
Yao
S
S
Fourth Militory Medical University.
Li
Z
Z
Lu
P
P
Ke
J
J
D003198:Computer Simulation; D001330:Electronic Data Processing; D021621:Imaging, Three-Dimensional; D007834:Lasers; D003765:Models, Dental; D009971:Orthodontics, Corrective