Peridontium

Question 1

The main fxn of the gingiva is to protect the underlying tissue. WHat are the three components of the attachment apparatus

Answer 1

PDL

Cementum

Alveolar bone

Question 2

Sharpies fibers insert into bone and _______. They are the terminal position of principal fibers.

Answer 2

cementum

Question 3

What provides the sensory function (v3 innervated) of the gingiva surrounding roots

Answer 3

PDL

Question 4

These fibers are embedded into the cementum of adjacent teeth and do not have osseous attachment. They keep teeth aligned

Answer 4

Transseptal fibers of PDL principle fibers

Question 5

These are the largest group of principle PDL fibers. They bear the brunt of occlusal forces by attaching from the cementum coronally to alveolar bone

Answer 5

Oblique fibers

Question 6

45-50% of _______ is inorganic calcium hydroxyapatite.

Answer 6

cementum

Question 7

50% of _______ is organic collagen and protein polysaccharides

Answer 7

cementum

Question 8

The primary function of cementum is to

Answer 8

attach sharpeys fibers

Question 9

Ankylosis

Answer 9

fusion of cementum and alveolar bone where no PDL is present

Question 10

Thinnest alveolar bone in body

Answer 10

facial surface of anterior teeth. Mandibular centrals thinnest.

Question 11

The three types of oral mucosa

Answer 11

masticatory-gingiva hard palate, parakaratinized

lining mucosa- floor, vestibule, buccal…nonkeratinized

specialized mucosa- dorsal tongue, keratinized mostly

Question 12

most oral mucosa is ___keratinized, but some such as the hard palate and attached gingiva is ___keratinized

Answer 12

para-common

otho-not common

Question 13

Facial attached gingiva is thickest and thinnest where?

Answer 13

thickest facial incisors, thinnest 1st promolar.

Decreases front to back of oral cavity