24Dental MaterialsMedium
When making a polysulphide impression for a caste crown, custom trays are usually preferred over stock trays for all of the following reasons except________?
ACustom trays require less impression material
BStock trays may be short in the flange area
CCustom trays facilitate uniform contraction of impression material
DImpressions made n the custom trays are easier to remove from the mouth
Correct answer
D. Impressions made n the custom trays are easier to remove from the mouth
Explanation
The correct answer is Impressions made n the custom trays are easier to remove from the mouth.