Dental drill anatomy

  • Can a dentist drill to deep?

    Drilling Too Deep into the Canal
    There are several injuries that could occur when a dentist drills too deep into a tooth's canal.
    First, the patient could suffer nerve damage as a result of a root canal procedure if the dentist drills through the apex of the tooth and into the inferior alveolar nerve..

  • How does a dentist drill?

    Air-driven dental handpieces contain an air turbine in the head.
    When compressed air delivered through a tube is forced through the blades of the turbine, the movement of the turbine converts that air pressure into the rotational force that makes the chuck (which holds the cutting bur) spin..

  • What are dental drill bits called?

    Dental burs, the dentist's drill bits, are made of stainless steel, diamond, or tungsten carbide combined with cobalt or nickel.
    The latter combinations could pose health hazards due to their heavy metal content if fragments of the material are left behind on the tooth or inhaled..

  • What are three 3 important properties required of a material for use in dental drill bit?

    The most important part of the dental drill is the drill bit, or bur, which needs to be robust, durable, and be able to rotate at very high speeds..

  • What is a dentist drill tool called?

    Contra-angle.
    The modern incarnation of the dental drill is the air turbine (or air rotor) contra-angle handpiece, where the shaft of the rotary instrument is at an angle allowing it to reach less accessible areas of the mouth for dental work..

  • What is a drill in dentistry?

    While the dental drill, sometimes known as a dental handpiece, is used to drill holes (preparing teeth for fillings), it is also used for removing decay, polishing fillings, performing cosmetic dentistry, and altering prostheses.
    It truly is one of the most handy dental tools out there (no pun intended)..

  • What is drilling of teeth?

    Tooth Drilling Procedure
    A dental drill is a mechanical tool that dental professionals use to clean decayed enamel and dentine.
    Tooth decay or cavities occur when the bacteria in the mouth combine with sugar, which produces acids that breakdown tooth enamel..

  • During your dental consultation, your dentist will most likely use a dental drill to remove damaged parts of the tooth so that dental procedures to repair and restore the function of your pearly whites can be performed.
    Dental drills are used for dental bonding, root canal treatment, and tooth extraction, among others.
  • Speed-increasing handpiece is driven by electrical motor, also known as micromotor.
    The power to the handpiece is provided by the micromotor.
    Within the handpiece is internal gearings which allow the friction grip burr to rotate at a constant speed independent of torque.
  • The most important part of the dental drill is the drill bit, or bur, which needs to be robust, durable, and be able to rotate at very high speeds.
As dental drill rotational speeds increased in the late 1950s, a cycle of modifications of bur sizes and shapes occurred. Smaller-diameter burs replaced larger- 
The burr is the dental drill's analogue to a power drill's bit—the piece used at the business end to shape and cut the tooth. And like with a power drill, there 

High-speed handpiece

High-speed handpieces may cut at speeds of up to 180,000 rpm. Depending on their mechanisms

Speed-increasing handpiece

Electric motors cannot turn as fast as air turbines. To power a high-speed handpiece, gears are needed to increase the speed of an electric motor

Slow speed handpiece

Slow speed handpieces work at a much slower rate that high speed and speed-increasing handpieces, and are usually driven by rotary vane motors

Speed decreasing handpiece

Designed to work at slower speeds

Dental burr

A dental burr or bur is a type of cutter used in a handpiece. The burrs are usually made of tungsten carbide or diamond

Dental drill anatomy
Dental drill anatomy

Tool used to create holes

A drill is a tool used for making round holes or driving fasteners.
It is fitted with a bit, either a drill or driver chuck.
Hand-operated types are dramatically decreasing in popularity and cordless battery-powered ones proliferating due to increased efficiency and ease of use.

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