E2- Intro to dentistry Flashcards
(36 cards)
_____ - toward the midline of the dental arch
mesial
_____ -away from midline (caudal)
distal
_____- contact surface facing adjoining teeth
proximal
_____- b/t proximal surfaces of adjoining teeth
interproximal
____ - wider space b/t teeth
diastema
____ always means toward the root or away from the crown
apical
___ means toward the crown
coronal
where is the red line pointing?
mucogingival line
____ - potential space b/t tooth and gingiva
gingival sulcus
___ is the only visible part of the periodontium in a normal mouth
gingiva
What are the functions of the periodontal ligament?
attached tooth to alveolus
absorbs shock
supplies nutrients to alveolar bone and cementum
provides tactile and proprioceptive info (sensation)
The periodontal ligament isolates the tooth from the surrounding bone and importantly, the ____
osteoclasts that remodel surrounding bone
If the periodontal ligament ossifies, what happens?
the osteoclasts invade the tooth and remodel it so it is not flexible and full of dentinal tubules - this causes the roots to essentially disappear and the crown to break off since the tooth doesnt flex with chewing
Thickness of dog vs cat enamel
dog- <0.1mm - 0.6mm
cat- <0.1mm - 0.3mm
T/F: enamel can be replaced if damaged
FALSE
Should we be concerned about a chevron sign?
no- normal anatomic structure that can mimic or appear as pathology
What is the role of dentinal tubules?
deliver nutrients to ondontoblasts
what is this structure?
incisive papilla- vomeronasal organ
clients often think its a tumor
incisive ducts
incisive papilla in feline
Parotid salivary gland papilla function
Dentin is formed by?
odontoblasts throughout life
