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Download Functions and Composition of Cementum: A Dental Tissue and more Quizzes Health sciences in PDF only on Docsity!
functions of cementum
Seals the surface of the root dentin & covers the ends of the
open dentinal tubules. Attaches the tooth to the alveolar
bone via embedded fibers from the periodontal ligament--
these are called extrinsic fiber bundles
TERM 2
cementum is _% mineral
DEFINITION 2
TERM 3
two layers of
cementum
DEFINITION 3
intermediate and secondary
TERM 4
_ cementum has alternating _ & _
layers
DEFINITION 4
Secondary; acellular; cellular
TERM 5
_ cementum contains cells in lacunae
DEFINITION 5
Cellular
cells in lacunae have _ that contact adjacent
cells and are housed in _
processes; canaliculi
TERM 7
Acellular cementum does not contain
DEFINITION 7
cells
TERM 8
Cementum does not contain
DEFINITION 8
nerves or blood vessels
TERM 9
cementum is more _ to resorption, compared
to bone because of its lack of _ which allows _
_
DEFINITION 9
resistant; vascularity; orthodontic movement
TERM 10
In % of the time cementum overlaps enamel a
short distance
DEFINITION 10
Because cementum is epithelial in origin it is
made up of _, instead of _
enamelin; collagen
TERM 17
The cementoid layer is _ mineralized than
other types of cementum, thus it has a _
consistency
DEFINITION 17
more; harder
TERM 18
intermediate cementum seals _ _ and is
completely formed before the _ _ _ _ _
DEFINITION 18
dentinal tubules; deposition of secondary cementum begins
TERM 19
after the cementoid layer is completely
formed, _ begin to form secondary, or
cellular-acellular cementum
DEFINITION 19
cementoblasts
TERM 20
cementoblasts
DEFINITION 20
arise initially from mesenchymal cells in the dental follicle &
later from fibroblasts in the periodontal ligament
The first layer of secondary cementum is _ &
is deposited on _ _
acellular; intermediate cementum
TERM 22
In incisor teeth the first acellular layer may
extend to the _ area of the tooth
DEFINITION 22
apical
TERM 23
In posterior teeth the first acellular layer may
extend down the root to varying degrees, but
usually stops at about _
DEFINITION 23
midroot
TERM 24
The second layer of secondary cementum is _
& subsequent layers alternate between
acellular & cellular
DEFINITION 24
cellular
TERM 25
secondary cementum is thickest at the
DEFINITION 25
apex
_ may also occur as cementum ages
Resorption
TERM 32
resorption is followed by a period of
DEFINITION 32
cementum depositon & formation of reversal lines
TERM 33
_ _ may also be found associated with
attrition to teeth & _
DEFINITION 33
Cemental repair; hypereruption
TERM 34
occur in the PDL with aging
DEFINITION 34
Cementicles
TERM 35
cementicles are
DEFINITION 35
calcified ovoid or round nodules found in the periodontal
ligament
cementicles occur
singly, or in groups
TERM 37
as far as attachment, cementicles
DEFINITION 37
may be free in the PDL, attached to, or embedded in the
cementum
TERM 38
cementicles are probably formed from
DEFINITION 38
a nidus of epithelial cells that calcify
TERM 39
once calcified, cementicles have a
composition similar to
DEFINITION 39
cementum
TERM 40
Cementicles are usually associated with _, but
may also be found in areas of _
DEFINITION 40
aging; trauma
