Effect of the spray pattern, water flow rate, and cutting position on the cutting efficiency of high-speed dental handpieces.
The aim of this study was to evaluate the effect of the spray pattern, water flow rate, and cutting position on the cutting efficiency of high-speed dental handpieces. One- and three-port high-speed handpieces were selected. Cutting efficiency (mm/s) in different cutting positions was evaluated in vitro on machinable ceramic underwater flow rates of 15, 25, and 35 mL/min. Statistical analysis revealed significant differences in cutting efficiency for the various cutting positions and flow rates. The authors recommend multiport handpieces with a flow rate greater than 30 mL/min for use in clinical practice, especially during groove cutting.
Department of Preventive Dentistry, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
Wen-jie
WJ
Yang
Jian
J
Sun
D002516:Ceramics / Q000737:chemistry; D003754:Dental High-Speed Equipment / Q000592:standards*; D003764:Dental Materials / Q000737:chemistry; D003814:Dentistry, Operative / Q000295:instrumentation*; D004867:Equipment Design; D006801:Humans; D012212:Rheology; D013499:Surface Properties; D014867:Water / Q000737:chemistry
D003764:Dental Materials; D014867:Water; C023506:Glass ceramics