Scientific ArticlesHeat generation during implant drilling: The significance of motor speed☆,☆☆,★
Section snippets
Materials and methods
The present study was conducted on porcine jaw bone following the clinical procedures commonly used in implant dentistry.7, 18 The rationale for choosing pig jaws was the histologic and chemical similarity of pig bone with human bones.19
Nine fresh pig heads were obtained and prepared in a manner to separate the maxillae from the mandibles. The edentulous region between the canine and the first premolar was selected for drilling and was radiographed to observe the limiting structures and
Internal irrigated systems
In the Steri-Oss system, the mean rise in temperature (ΔT) in Md and Mx specimens with different speeds is presented in Figure 1.
Discussion
Previous studies have shown that osteonecrosis after bone drilling is a function of the rpm (degree and time).8, 9, 17 In this study, 3 speeds were evaluated and the time of drilling (t) or time required for the bone to return to baseline temperature (TB) was monitored. Results of this investigation clearly show that the higher the speed, the less was the heat generated. These findings were true regardless of the site of drilling, whether Md or Mx, or the implant system used. This is not to
Acknowledgements
The authors would like to thank Dr Carl Russell, Medical College of Georgia, for analyzing the data of this study.
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2023, Materials Today: ProceedingsCitation Excerpt :Drilling time (t) was found to be inversely proportional to drill speed of rotation. Drilling takes longer with slower rotating rates, resulting in more frictional heat [22]. Raj et al conducted a similar in vitro study on bovine femur considering diameters of drill as 2.01 mm and 2.801 mm at 1500 RPM, 2000 RPM, 2500 RPM including hand pressure of 1.19 kgf and 2.41 kgf using external irrigation and the results were recorded applying the technique of infrared thermography utilizing the forward-looking infrared (FLIR) camera.
Cortical bone drilling: A time series experimental analysis of thermal characteristics
2021, Journal of Manufacturing Processes
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The study was funded in part by the Misch Implant Institute, Birmingham, MI.
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Dr Misch is a consultant for and stockholder of BioHorizons Implant Company.
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Address correspondence and reprint request to Dr Sharawy: School of Dentistry, Room 1411, Medical College of Georgia, 1120 15th St, Augusta, GA 30912-1122; e-mail: [email protected]