| 释义 |
piezoelectric ultrasonic device pi·e·zo·e·lec·tric ul·tra·son·ic de·vice (pē-ā'zō-ĕ-lek'trik ŭl'tră-son'ik dĕ-vīs') An electronically powered tool that uses the rapid energy vibrations of a powered instrument tip to fracture calculus from the tooth surface and clean the environment of a periodontal pocket. This device consists of a portable electronic generator, a handpiece, and instrument inserts. The instrument tip of a piezoelectric instrument vibrates at 24,000-34,000 cycles per second. pi·e·zo·e·lec·tric ul·tra·son·ic de·vice (pē-ā'zō-ĕ-lek'trik ŭl'tră-son'ik dĕ-vīs') Electronically powered tool that uses rapid energy vibrations of a powered instrument tip to fracture calculus from tooth surfaces and clean environment of periodontal pocket; consists of a portable electronic generator, a handpiece, and instrument inserts. |