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The International Journal of Prosthodontics

Edited by George A. Zarb, BChD, DDS, MS, MS, FRCD(C)

ISSN 0893-2174

January/February 2013
Volume 26 , Issue 1

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Effect of the Spray Pattern, Water Flow Rate, and Cutting Position on the Cutting Efficiency of High-Speed Dental Handpieces

Wen-jie Yang, DDS/Jian Sun, DDS, PhD

Pages: 8587
DOI: 10.11607/ijp.3008

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. Int J Prosthodont 2013;26:8587. doi: 10.11607/ijp.3008

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