A proper contact between adjacent teeth stabilizes the dental arches by:
A)preventing food from being trapped between the teeth.
B)holding teeth in positive contact with each other.
C)protecting the interproximal gingival tissue from trauma during chewing.
D)stretching the periodontal ligament fibers.

Question

Quizplus · Accepted Answer

A proper contact stabilizes the dental arch by holding teeth in positive contact with each other.
Helping to prevent food from being trapped between the teeth is one purpose of a proper contact; however,it does not stabilize the dental arches.
Protecting the interproximal gingival tissue from trauma during chewing is one purpose,but it does not stabilize the dental arches.
Orthodontia stretches periodontal ligament fibers on the tension side,resulting in apposition of bone; however,orthodontic force loosens teeth and temporarily destabilizes the dental arch.

A Proper Contact Between Adjacent Teeth Stabilizes the Dental Arches