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what is the visible portion of the crown called?
clinical crown
where is the clinical crown located?
above the attached periodontal tissues (above free gingiva)
t/f the root can be part of the clinical crown?
True
False
true-gum recession makes root visible
what is the anatomic crown?
part of the tooth covered by enamel- no root
what is the anatomic root?
part of tooth covered by cementum
what is the portion of the anatomic root that is visible called?
clinical root
t/f you can have a clinical root would also be part of the clinical crown?
True
False
true
what are the three types of gingiva
masticatory
lining
specialized
what does masticatory mucosa cover?
gingiva and hard palate
what type of mucosa is firmly attached to underlying tissues and generally keratinized?
masticatory
does stippling occur on masticatory tissue?
yes
what does lining mucosa cover?
inner surface of lips
cheeks
floor of mouth
ventral surface of tongue
soft palate
alveolar mucosa
what type of mucosa is not firmly attached to underlying structures and is not kertatinized?
lining mucosa
what does specialized mucosa cover?
dorsum of tongue
papillae
what are the four types of specialized mucosa papillae?
filiform
fungiform
circumvallate
foliate
what type of papillae are finger like white and fill in most of the tongue?
filiform
what type of papillae are mushroom like and are large and red
fungiform
how many circumvallate papillae are there?
10-14
where are the foliate papillae located
posterior lateral border of the tongue
what makes up the supporting structures of the tooth?
periodontal ligament
gingival fibers
cementum
alveolar processes of maxilla and mandible
what are the supporting structures of the tooth called?
periodontium
what attaches to roots of teeth to the alveolar bone?
periodontal ligament
what kind of tissue is the periodontal ligament?
fibrous connective tissue
what are the fibers that insert into the cementum and alveolar bone?
sharpey's fibers
what are the four gingival fiber groups
dentiogingival fibers
alveologingival fibers
circumferential fibers
dentoperiosteal fibers
what fibers are continuous around the neck of the tooth?
circumferential (circular) fibers
what do circumferential (circular) fibers do?
help maintain tooth position
what fibers go from the cementum of cervical region into free gingiva?
dentogingival (free) fibers
what dot he dentogingival (free) fibers do?
support gingiva
what fibers go from the alveolar crest into free and attached gingiva?
alveologingival (attached gingival) fibers
what dot he alveologingival (attached gingival) fibers do?
provides gingival support
what fibers go from the cervical cementum over the alveolar crest to blend with fibers of the periosteum
dentoperiosteal (alveolar crest) fibers
what do the dentoperiosteal (alveolar crest) fibers do?
provides gingival support
what are the six principal fiber groups?
transeptal fibers
alveolar crest fibers
horizontal fibers
oblique fibers
apical fibers
interradicular fibers
what are the two types of periodontal ligament fiber groups
gingival fiber group
principal fiber group
what fibers go from the cervical area of one tooth across to an adjacent tooth?
transseptal fibers
transseptal fibers travel _____ to ______ only
mesial to distal
what do transseptal fibers do ?
help to keep teeth seperated
if you lose the tooth what element of support do you also lose?
transseptal fibers
what fibers go from alveolar crest to the cementum just below the CEJ?
alveolar crest fibers
what do alveolar crest fibers do?
resist intrusive forces
what do alveolar crest fibers work in conjunction with?
junctional epithelium
what fibers go from the cementum in the middle of each root to the adjacent alveolar bone?
horizontal fibers?
what do horizontal fibers do?
resist tipping of the tooth
what fibers go from the root above the apical fibers obliquely toward the occlusal?
oblique fibers
what do oblique fibers do?
resist vertical and unexpected strong forces
what is an example of a strong force the fibers help to resist against?
trauma
what fibers go from the root apex to the adjacent surrounding bone?
apical fibers
what do the apical fibers do?
resist vertical forces (trauma)
what fibers go from the cementum between the roots of multi-rooted teeth to the adjacent bone
interradicular fibers
what do interradicular fibers do?
resist vertical and lateral forces
what fibers are inbetween the roots of the same tooth?
interradicular fibers
what fibers help to resist vertical and lateral forces
interradicular fibers
what fibers help to resist vertical forces?
apical fibers
what fibers resist vertical and unexpected strong forces?
oblique fibers
what fibers help to resist tipping of the tooth
horizontal fibers
what fibers help to resist intrusive forces?
alveolar crest fibers
what fibers help to keep teeth separated?
transseptal fibers
what fibers provide gingival support?
dentoperiosteal (alveolar crest) fibers
what fibers help to proved gingival support?
alveologingival (attached gingival) fibers
what fibers support the gingiva?
dentogingival (free) fibers
what fibers help to maintain tooth position?
circumferential (circular) fibers
what are two functions of the cementum
seal the tubercles of the root dentin
provide attachment for the perio fiber group
what is the apex cementum thickness?
50-200 micrometeres
what cementum is 50-200 micrometers thick?
apex cementum
what is the cervical cementum thickness?
30- 60 micrometers
what cementum is 30-60 micrometers tick?
cervical cementum
t/f the cementum is sensitive because of its vascular and nerve connections
True
False
false-cementum is insensitive; it has no vascular or nerve connections
what are the two types of cementum?
acellular
cellular
what type of cementum is the primary cementum?
acellular cementum
t/f acellular cementum is fast forming and cellular cementum is slow forming?
True
False
false the acelluar is SLOW forming and cellular cemntum is FAST
what type of cementum has one layer to cover the entire root?
acellular
t/f acellular cementum has more layers at the cervical third
True
False
true
which type of cementum has a static width?
acellular
which type of cementum has no cementocytes?
acellular- cannot reproduce
which type of cementum has sharpey's fibers that are fully mineralized?
acellular
which type of cementum is on top?
cellular
which type of cementum is secondary?
cellular
what are the most common places for cellular cementum?
apical third and interradicular area
t/f the width of cellular cementum is dynamic?
True
False
true-more produced if needed
what type of cementum has sharpey's fibers that are partially mineralized
cellular
what surrounds the tooth socket and supporting bone?
lamina dura
what is reabsorbed when the tooth is lost?
alveolar bone
what is the function of the alveolar bone?
support teeth
provide attachment for periodontal ligament (PDL)
Author
sweetpea281
ID
49521
Card Set
theory
Description
Wilkins Ch. 12 The Gingiva
Updated
2010-11-14T22:12:26Z
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