PDL Fibers group

Question 1

-Extends to the alveolar crest of the bone and into the gingival connective tissue
-resist vertical and intrusive forces

Answer 1

Alveolar crest group

Question 2

-Extends in a horizontal direction from the midroot cementum to the adjacent alveolar bone.
-resists horizontal and tipping forces

Answer 2

Horizontal fiber group

Question 3

-extends in an oblique direction from
the area just above the apical zone of
the root upward to the alveolar bone
– resist vertical or intrusive

Answer 3

Oblique fiber group

Question 4

-extends perpendicular from the
surface of the root apices to the
adjacent fundus of the alveolar bone
– resist vertical and extrusive forces
applied to the tooth

Answer 4

Apical fiber group

Question 5

-located between the roots of
multirooted teeth; they
extend perpendicular to the
tooth’s surface and the
adjacent alveolar bone
–these fibers resist vertical
and lateral forces

Answer 5

Interradicular fiber group

Question 6

extending from the cervical
cementum to the lamina propria
of the free and attached gingivae

Answer 6

Dentogingival group

Question 7

fibers radiate from the alveolar crest of the bone and extend into the lamina propria of the free and attached gingivae

Answer 7

Alveologingiva group

Question 8

group of fibers forms a band around the neck of the tooth and helps to bind the free gingiva to the tooth

Answer 8

circumferential/circular group

Question 9

extends from the cementum near the CEJ and insert to the alveolar process or the vestibular muscle and floor of the mouth

Answer 9

Dentoperiosteal group

Question 10

fibers run interdentally from the cementum of the mesial of one tooth to the cementum of the distal of the adjacent tooth except the 4 central incisors

Answer 10

Transseptal group