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Saturday, March 10, 2001

89 Prosthodontics MCQs Answer

Saturday, March 10, 2001

The Correct option is D

Beryllium is a very toxic substance but is nevertheless still used in certain dental materials.

Beryllium is not used as an implant substance, although it can be found a component of nickel chromium alloys.

Beryllium in base metal alloys can present a dental occupational health problem. There is strong evidence that occupational exposure to certain nickel compounds is associated with increased incidence of specific types of cancer.
Skinner, p 559.

The best method to etch a beryllium-free base metal alloy is with 0.5 normal nitric acid.


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