| 摘要 |
PROBLEM TO BE SOLVED: To provide an ultrasonic diagnostic apparatus for obtaining a three-dimensional image of the surface of dentition or a three-dimensional image of the inside of the dentition using ultrasonic waves. SOLUTION: A dentition mounting frame 10, in which ultrasonic vibrator array is arranged to face the front and rear surfaces of the dentition and the occlusion surface of the dentition to be read, is used in the ultrasonic diagnostic apparatus, and the dentition mounting frame 10 is attached to the dentition. Ultrasonic waves are transmitted to the outer surface of the dentition from the ultrasonic vibrators 11 under the control of an ultrasonic data obtaining means 40 and the reflection waves reflected on the outer surface are received by the ultrasonic vibrators 11 to obtain ultrasonic data. Three-dimensional data on the shape of the outer surface of the dentition are computed and obtained by a dentition three-dimensional data obtaining means 50 based on the ultrasonic data obtained by the ultrasonic data obtaining means 40 and known positional relation data among the ultrasonic vibrators 11 for transmission/receiving. COPYRIGHT: (C)2007,JPO&INPIT
|
