title: The effect of low-speed drilling without irrigation on heat generation: an experimental study.
abstract: OBJECTIVE
  In this study we evaluated heat generation during the low-speed drilling procedure without irrigation.
  
  
  METHODS
  Ten artificial bone blocks that were similar to human D1 bone were used in this study. The baseline temperature was 37.0℃. We drilled into 5 artificial bone blocks 60 times at the speed of 50 rpm without irrigation. As a control group, we drilled into an additional 5 artificial bone blocks 60 times at the speed of 1,500 rpm with irrigation. The temperature changes during diameter 2 mm drilling were measured using thermocouples.
  
  
  RESULTS
  The mean maximum temperatures during drilling were 40.9℃ in the test group and 39.7℃ in the control group. Even though a statistically significant difference existed between the two groups, the low-speed drilling did not produce overheating.
  
  
  CONCLUSIONS
  These findings suggest that low-speed drilling without irrigation may not lead to overheating during drilling.
authors.affiliation: Department of Dentistry, Yonsei University Wonju College of Medicine, Wonju, Korea.
authors.forename: Ji-Hyeon
authors.identifier: 0000-0002-6050-7175
authors.initials: JH
authors.lastname: Oh
authors.affiliation: Department of Dentistry, Yonsei University Wonju College of Medicine, Wonju, Korea.
authors.forename: Yiqin
authors.identifier: 0000-0003-0077-8261
authors.initials: Y
authors.lastname: Fang
authors.affiliation: Department of Dentistry, Yonsei University Wonju College of Medicine, Wonju, Korea.
authors.forename: Seung-Mi
authors.identifier: 0000-0002-1543-7227
authors.initials: SM
authors.lastname: Jeong
authors.affiliation: Department of Dentistry, Yonsei University Wonju College of Medicine, Wonju, Korea.
authors.forename: Byung-Ho
authors.identifier: 0000-0002-6105-6118
authors.initials: BH
authors.lastname: Choi
keywords: Dental implants; Flapless; Low-speed drilling; Surgical guide