Title:
【発明の名称】歯冠表面における平滑面の損傷の超音波探傷装置及びその検出方法
Document Type and Number:
Japanese Patent JP2001504379
Kind Code:
A
Abstract:
This invention is a device and method for the detection of smooth surface lesions such as caries and tooth crown surface cracks on a tooth crown surface, the device having an ultrasonic surface wave transmitter/receiver (20) capable of transmitting ultrasonic surface waves along a tooth crown surface. Surface lesions encountered by the ultrasonic surface waves produce ultrasonic surface wave reflections which are receivable at the generator/receiver, thus enabling the presence of the lesion to be detected. The ultrasonic surface wave generator/receiver may comprise a transducer operatively connected to a wedge-like coupler (30). Longitudinal ultrasonic waves generated by the transducer are imparted onto the tooth surface by the coupler which has a contact surface in contact with the tooth surface being tested. The coupler also enables ultrasonic surface wave reflections to be received by the transducer.
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Inventors:
Baby itai
Fewerstein male nut
Jib belled bibi
Fewerstein male nut
Jib belled bibi
Application Number:
JP52448498A
Publication Date:
April 03, 2001
Filing Date:
November 26, 1997
Export Citation:
Assignee:
Novadent Limited
International Classes:
A61C19/04; G01N29/07; A61C; (IPC1-7): A61C19/04
Attorney, Agent or Firm:
Akira Koike (2 outside)