Protrusion of the maxillary anterior teeth can be caused by tongue-thrusting because improper tongue placement during swallowing exerts powerful pressure against lingual surfaces of anterior teeth.
A) Both the statement and the reason are correct and related.
B) Both the statement and the reason are correct but are NOT related.
C) The statement is correct,but the reason is NOT correct.
D) The statement is NOT correct,but the reason is correct.
E) NEITHER the statement NOR the reason is correct.

Question

Quizplus · Accepted Answer

Tongue-thrusting exerts a powerful force against the lingual surface of anterior teeth.The result is a protrusion of maxillary teeth with disruption of normal eruption.In normally developed swallowing patterns protrusion of anterior teeth is prevented because the tongue is placed against the roof of the mouth,not against teeth.

Protrusion of the Maxillary Anterior Teeth Can Be Caused by Tongue-Thrusting