When sizing an aluminum temporary crown, which of the following must occur?
The crown must be trimmed and contoured to fit the preparation.
The crown must fit the area both mesially and distally.
The crown must not impinge on the gingiva.
All of the above.
All of the above.
Rationale: all of the above-the crown must fit both mesially and distally to maintain spacing between the teeth while the permanent crown is being fabricated and cover the margins to prevent sensitivity.
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This system contains a central primary supply pipe that feeds branch distribution lines throughout the jurisdiction
A. Loop, or belt, system B. Grid system C. Tree system
The ________________ was formed in 1936 as Great Britain prepared for war with Germany and was charged with contemplating the effects of aerial attacks and recommending national standards of response of cover
A. Riverdale Committee B. Integrated Risk Management Planning Committee C. National Board of Fire Underwriters D. National Standards of Fire Cover Committee
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