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Dental restorations are often made from a combination of precious metals. [5] As the dental industry adopted CAD/CAM processes for most of the crown and bridge fabrication, gold manufacturing still relied on the ancient "lost wax" technique, which requires a significant amount of time, skill, and labor. Recent developments have seen the advent ...
If porcelain is to be applied to the gold crown, an additional minimum of 1 mm of tooth structure needs to be removed to allow for a sufficient thickness of the porcelain to be applied, thus bringing the total tooth reduction to minimally 1.5 mm. For porcelain or ceramic crowns the amount of tooth reduction is 2 mm. For metal, it is 1 mm.
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.
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However, most dental forceps are not designed for comfort, nor do they take the account of the dental practitioners hand positions throughout the procedure to mind. [9] Dental forceps have been designed to the point where dentists experience medical complications of their own on the carpal scale considering their hands are always placed in an ...
The tooth could then be replaced with a dental implant. Alternatively, orthodontic extrusion can be used to achieve crown lengthening. Using brackets, light forces can be used to pull the tooth away from the gums within a few months. A fiberotomy is performed after crown lengthening and is easily performed by the general dentist.