Mechanisms Power Air turbine used in a dental handpiece Correlation between rotational speed and torque Correlation between rotational speed and turbine output power However, in a clinical context, air turbine handpieces are commonly referred to as "high-speeds." Handpieces have a chuck or collet, for holding a cutter, called a burr or bur. Depending on their mechanisms, they are classified as air turbine or speed-increasing. High-speed handpieces may cut at speeds of up to 180,000 rpm. The burrs are usually made of tungsten carbide or diamond.
It is common for a light source and cooling water-spray system to also be incorporated into certain handpieces this improves visibility, accuracy and overall success of the procedure. The type of apparatus used clinically will vary depending on the required function dictated by the dental procedure. The handpiece itself consists of internal mechanical components which initiate a rotational force and provide power to the cutting instrument, usually a dental burr. Head of the dental drillĪ dental drill or dental handpiece is a hand-held, mechanical instrument used to perform a variety of common dental procedures, including removing decay, polishing fillings, performing cosmetic dentistry, and altering prostheses. Dental instrument A high-speed dental handpiece.
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