Question

Overextension of a mandibular impression may be suspected on the labial and the buccal if group of answer choices

a. a the impression raises when the tip of the tongue is thrust into the cheek.
b the impression raises when the tongue is thrust forward.
c the impression raises when the mouth is opened.
d a portion of the denture border appears to be uncovered when the tissues are in function. b and d

Answer 1

Overextension of a mandibular impression can be suspected on the labial and buccal if a portion of the denture border appears to be uncovered when the tissues are in function and the impression raises when the tip of the tongue is thrust into the cheek.

Step-by-step explanation:

The student's question is related to the overextension of a mandibular impression. Overextension of a mandibular impression can be suspected on the labial and buccal if a portion of the denture border appears to be uncovered when the tissues are in function (answer choice d). Another indication can be the impression raising when the tip of the tongue is thrust into the cheek (answer choice a). Therefore, the correct answer is option b and d.