Quantitative Analysis of Force and Torque in Bone Drilling

Abstract

Bone drilling is an important and the most frequent operation in orthopaedics and other bone surgical procedures. Prediction and control of drilling force and torque are critical to safe and efficient surgeries. This paper studies the drilling force and torque arising from bone drilling process. Drilling parameters such as drilling speed, feed rate, drill size and drill condition (sharp and worn) were changed to measure the force and torque in the direction of the drill penetration. Experimental results demonstrated lower drilling force using a sharp drill compared to a worn drill for similar drilling conditions. Contrary to the drilling force, lower torque was measured using a worn drill compared to a sharp drill. The drilling force was found to decrease with increase in drill speed and increased with rise in the feed rate using both types of drills. A linear drop in drilling torque was measured with increase in drilling speed. This study provided scientific information to orthopaedic surgeons and technicians to use appropriate surgical drill and cutting parameters to avoid overstressing of the bone tissue and drill breakage during drilling operations.

Infrared Thermographic Evaluation of Temperature Modifications Induced during Implant Site Preparation with Steel vs. Zirconia Implant Drill

“…Inappropriate pressure during drilling may cause higher bone temperatures, which can further have an influence on the health of the peri-implant bone [28]. Moreover, the implant bed [29] preparation is complex, and the amount of pressure is influenced by multiple factors such as rotation speeds [29,30] and feed rates [31,32]. In clinical practice, it is impossible to control the pressure and feed rates of the drill.…”

Osseodensification Drilling vs. Standard Protocol of Implant Site Preparation: An In Vitro Study on Polyurethane Foam Sheets

“…According to the Misch classification (1988), the decreased bone density and the lack of bone cortical, such as D4 bone type, could influence the obtaining of primary stability during the implant positioning [9]. Several techniques had been proposed to increase primary stability in vivo in maxillary posterior region such as: under-preparation drilling protocols, manual condensation osteotomy, piezoelectric devices [10][11][12][13].…”

Kemik Delme İşlemlerinde Farklı Kesme Koşullarının ve Kesme Parametrelerinin Kesme Sıcaklığı Üzerindeki Etkisinin Araştırılması

“…Literatürde uç açısının kemik delme üzerindeki etkileri ile ilgili farklı görüşler bildirilmiştir. Bu farklı sonuçların temel nedeni; kemiğin anizotropik doğasına, mekanik özelliklerine ve farklı konumlardaki farklı kemik gözenekliliğine atfedilebilir [17]. Lee vd.…”