The effect of low-speed drilling without irrigation on heat generation: an experimental study
Ji-Hyeon Oh1, Yiqin Fang1, Seung-Mi Jeong1
1Department of Dentistry, Yonsei University Wonju College of Medicine, Wonju, Korea.
Objectives:
In this study we evaluated heat generation during the low-speed drilling procedure without irrigation.
Materials And 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.
Conclusion:
These findings suggest that low-speed drilling without irrigation may not lead to overheating during drilling.
Related Concept Videos
Hot Weather Concreting
Mitigating the heat increase in concrete can be economically achieved by shading aggregate stockpiles to prevent heating from solar radiation,...
Mechanisms of Heat Transfer I
Mechanisms of Heat Transfer II
Mechanisms of Heat Transfer
Conduction, accounting for approximately 3% of body heat loss at rest, is the process of exchanging heat between molecules of two materials in direct contact. This can result in both heat loss and gain. For instance, when the body is submerged in water, which conducts heat 20 times more effectively than air, it can either lose or gain significant...


