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M Swanepoel
04-20-1995, 01:38 AM
TOOTH FRACTURE
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Dear netters,

I require information on the fracture strength of teeth (preferably
immediately post-extraction) and the different types of tooth
injuries which result from specific types of loading: e.g. avulsion
and crowns being chipped off. I would prefer references which state
the rate and magnitude of loading, and ideally the energy absorbed
during fracture - something in the way of Charpy fracture toughness
tests. Diagrams of the injuries caused would also be invaluable.

The information is needed due to concerns raised about the design of
the lid of a beverage container, which holds contents under a pressure
of a few bars. Incidentally, does anyone out there know of specific
legal requirements for such designs which are written in engineering
terms?

Thank you for your interest.

Mark W. Swanepoel
Mswan@Hertz.mech.wits.ac.za
UNIVERSITY OF THE WITWATERSRAND, SOUTH AFRICA