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Orofacial Anatomy
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True or False
A healthy tooth will exhibit a slight mobility when pressure is applied?
True
NUMBER OF PULP CANALS
Maxillary first premolar
Two Canals
NUMBER OF PULP CANALS
Mandibular first premolar
One canal
NUMBER OF PULP CANALS
Mandibular third molar
Unpredictable
NUMBER OF PULP CANALS
Maxillary first molar
Three Canals
Which incisor is most likely to have
two pulp canals?
Mandibular lateral
Canines usually have how many root canals?
One
What does
Anoxia
mean?
lack of oxygen
TRUE OF FALSE
If there is an infection within a tooth, harmful gases can cause the root canal to expand.
False
The gases expand but the root canal remains the same size.
What does
furcation
mean?
The region of division of tooth root.
It is a
bifurcation if there are two roots
or a
trifurcation if there are three roots.
TRUE OR FALSE
Furcations are closer to the CEJ on mandibular molars than on maxillary molars.
TRUE
TRUE OR FALSE
All anterior teeth have a ridge-like biting edge.
FALSE
Incisors do have an incical ridge, but canines have a cone shaped cusp point.
TRUE OR FALSE
A central incisor is better able to resist displacement from forces than a canine.
False
Canines have longer roots than central incisors.
TRUE OR FALSE
Mandibular incisors show a slight attrition (or wearing down) on the labioincisal surface.
TRUE
TRUE OR FALSE
Tertiary anatomy refers to the numerous grooves, pits, and lines that third molars often have.
TRUE
TRUE OR FALSE
Because of their longer roots, maxillary lateral incisors have a greater crown-to-root ratio than maxillary centrals.
FASLE
They have a lesser crown to root ratio.
TRUE OR FALSE
The more posterior a molar is located, the closer together the roots will be.
TRUE
TRUE OR FALSE
Maxillary centrals and laterals are wider labiolingually than mesiodistally.
Fasle
Mandibular incisors are wider labiolingually.
TRUE OR FALSE
The Mandibular Lateral is most likely to have a proximal groove in its root.
TRUE
When does the mandibular lateral incisor erupt?
7-8 years
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Author
melinda
ID
38858
Card Set
Orofacial Anatomy
Description
Chapter *11 & 12*-Study Guide-
Updated
2010-10-01T02:42:37Z
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