The high-speed handpiece and the air/water syringe waterlines were both supplied by the water reservoir, but the mean HPC values for the air/water syringe samples were lower than the high-speed handpiece samples although the difference was not statistically significant (p=0.915).
Water samples collected from the output of the DUWLs were found to be more contaminated than the water sources that supplied them; the samples obtained from the output of the high-speed handpiece and the air/water syringe waterlines were more contaminated, although non-significantly, than the reservoir water samples (p=0.262 and 0.227, respectively).
need to be cleaned and lubricated between each patient.
Although other factors like environmental noise exposure were comparable for both groups, occupational exposure to high-speed handpieces
and other noisy devices can be an additional burden for the hearing.
Sometimes the noise level can reach to 100dB with the use of older high-speed handpiece
The new device is compatible with all Lares MX model swivel handpieces as well as all other lighted high-speed handpieces
with MULTIflex back end connections.
(19) Additionally, the vibrations produced by rotary diamond instruments in high-speed handpieces may affect the post/tooth cement layer, consequently jeopardizing post stability and retention.
The core-finishing procedures involving high-speed handpieces and diamond burs produce vibrations that can be compared with those produced by ultrasound devices.
"We found the high-speed handpieces
that the dentists brought were not always compatible with our units," Blair said.