The periodontal ligament is constantly undergoing functional change because the fibers are constantly subjected to a variety of pressures exerted on the tooth.
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

Because a variety of pressures continually exert pressure on teeth,the fibers of the periodontal ligament are constantly undergoing functional changes.The tooth itself is actually suspended by the ligament in such a way that some degree of movement within the bony cavity is possible.To a degree this provides a protective feature.For example,pressure exerted on the mesial surface will compress periodontal fibers of the distal surface,allowing more space between the tooth and bone.

The Periodontal Ligament Is Constantly Undergoing Functional Change Because the Fibers