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As the speed of a handpiece increases, its torque subsequently decreases (slow-speed handpieces have high torque, whereas high-speed handpieces, like the air turbine system, have a low torque) The free running speed of 1:5 gear ratio electric handpiece is the same as its cutting speed; thus, 40,000 motor speed x 5 = 200,000 rpm burr speed.
A Lentulo spiral. The notches at left allow it to fit into a slow-speed latch handpiece. A Lentulo spiral is a dental instrument used to properly distribute root canal sealer and cement evenly throughout the root canal system, as when performing endodontic therapy or a post and core cementation.
There are two popular types of prophy cups: 4 webs and 6 webs. Risk of generating frictional heat, and increased abrasion to the tooth surface may result from increased contact time, increased speed of rotation, and increased pressure of the cup on the tooth. [5] Short intermittent strokes should be used in order to avoid damage.
A major rockslide prompted two highways to be shut down in Colorado over the weekend and witnesses captured the frightening moment on video. Highways 96 and 165 from Wetmore to Westcliffe in ...
Low speed aerospace, full scale automotive and general purpose Switzerland Lockheed Martin Low Speed Wind Tunnel [39] Operational 8 m × 9 m × 19 m (26 ft × 30 ft × 63 ft) 7.0 m × 4.9 m × 13 m (23 ft × 16 ft × 43 ft) Aeronautics, Full Scale Automotive, V/STOL Aircraft, General Purpose United States
Kyle Birch, a theater actor known for playing the lead role of Usher in the Tony-winning musical A Strange Loop in London's West End, has died. He was 26 years old. The late star's longtime agent ...
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