An experiment to reduce the noise output of the four-hole high-speed handpiece by modifying the control box
To reduce the noise produced by a four-hole high-speed handpiece, an old SS White control box was modified by attaching to it a vacuump pump to suction air out of the handpiece through the exhaust tubing. The noise level of the six handpieces used were measured with a sound level meter with and with...
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| Format: | Thesis |
| Language: | English |