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Up to then, this procedure had required a bur changer. 1983: In 1983, W&H developed Elcomed, the most powerful and rapid device for minor operations of its day. The motor reached a drive speed of up to 45,000 rpm. With this instrument, W&H expanded its range in the area of oral surgery. 1989: W&H presented a unique Endo contra-angle handpiece ...
Air turbine used in a dental handpiece Correlation between rotational speed and torque Correlation between rotational speed and turbine output power. The turbine is powered by compressed air between 35 and 61 pounds per square inch (~2,4 to 4,2 bar), [1] [2] which passes up the centre of the instrument and rotates a Pelton wheel in the head of the handpiece.
A selection of carbide burrs.. Burrs or burs (sometimes called rotary files) [1] [2] are small cutting tools; not to be confused with small pieces of metal formed from cutting metal, used in die grinders, rotary tools, or dental drills.
Burs are also classified by: - The type of material the bur is made of - The shank type and total length of the bur - The shape of the head - The size of the grit - The maximum diameter of the head For instance, a latch type, or right angle bur, is only used in the slow-speed handpiece with contra-angle attachment.
This page was last edited on 10 February 2022, at 10:20 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.
The process of preparation usually involves cutting the tooth with a rotary dental handpiece and dental burrs, a dental laser, or through air abrasion (or in the case of atraumatic restorative treatment, hand instruments), to make space for the planned restorative materials and to remove any dental decay or portions of the tooth that are ...
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