| 摘要 |
An ultrasound system for assessment of distance between an area of interest and a known location of a non-bone canal for use in drilling an implant receiving cavity in the alveolar bone of a human subject's posterior mandibl e or posterior maxilla. The system comprises an ultrasound probe capable of being introduced at the area of interest and transceiving pulse echo ultrasound signal to the alveolar bone and therefrom and an electronic circuitry for processing the ultrasound signal and providing an indication o f the remaining alveolar bone distance between said ultrasound probe and a can al within the alveolar bone.
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