| 释义 |
sonic device son·ic de·vice (sonik dĕ-vīs) Electronically powered device that uses energy to vibrate tip to break calculus from the tooth surface; consist of a handpiece that attaches to the dental units high-speed handpiece tubing and interchangeable instrument tips. Its instrument tip vibrates between 3000 and 8000 cycles/sec (3-8 kHz). |