Last Minute: Class Review Questions Flashcards
In the ______ _____ ______ the incisal edge bisects the _________ diameter
max central incisor
faciolingual diameter
What is the shape of the max central incisor?
Triangular in shape – tooth is wider facially than lingually
in the max central incisor, the Mesial & distal contact points centered ______
faciolingually.
the lateral incisor is________ in all dimensions
except root length
Smaller
the max central incisor have______ pronounced mesial &
distal marginal ridges (lingual
surface)
less
______ _______ are broader Buccolingually (BL) than Mesiodistally (MD)
mandibular incisors
the cusp tip of the max canine is ______ to the line bisecting the root
labial
the cusp tip of the mand caninie is approximately ______ of crown height
1/5
the _____ _____ is lingual to the line bisecting
the root for the mand canine
cusp tip
maxillary 1st premolars have a _________ developmental depression/concavity.
max 2nd molars do not have this.
Mesial
The root tunk of the max 1st premolar is 1/2 to 2/3 the length of the root. (t/f)
true
The Maxillary 1st premolar is______ than the Maxillary 2nd premolar
larger
The Mandibular 1st premolar is_______ than the Mandibular 2nd premolar
smaller
The buccal and lingual triangular ridges join
together to form a single ridge called the
______ _______, on the mand 1st premolar
TRANSVERSE RIDGE
The shape outline of the mand 2nd premolar is ______ in shape.
Square.
on the maxillary molars, the ML, MB and DB cusps form a triangle – aka ________
trigon or
primary cusp triangle
the crowns of the permanent max molars are Crowns are broader B-L than M-D (t/f)
true
The shape of the maxillary 1st molar is rhomboidal and is the only tooth which broadens toward the________ – the MD width is greater on the L side than it is on the B
lingual
What are the acute angles of the maxillary 1st molar?
MB and DL
What are the obtuse angles of the maxillary 1st molar?
ML and DB
the teeth of the mandibular permaneent molars are broader - than -.
m-d
B-L
this is the opposite of the max molars
What is the shape of the mandibular 2nd molar?
rectangular in shape
al cusps are relatively the same shape.
the size of the pulp chamber can be affected by :
- Age: decreases with age
- Caries: reduces size
• Trauma: if severe, may cause complete obliteration of pulp
space
root transerverse section:
Triangular in shape – M, D, F walls
o Mesial wall is longer than distal
Maxillary Central:
root transerverse section:
Oval in cross section with M & D developmental depressions
maxillary canine
THIS IS THE ANTERIOR TOOTH least LIKELY TO HAVE A
BIFURCATED ROOT
maxillary canine
root transerverse section:
Root is round/ovoid with depressions on
the M & D – distal usually deeper
madnibular central
root transerverse section:
Root depressions are more pronounced
than those on Central
Mandibular Lateral:
root transerverse section:
THIS IS THE ANTERIOR TOOTH MOST LIKELY
TO HAVE A BIFURCATED ROOT
mandibular central
• Smaller in overall crown size & dimensions (with
exceptions)
- Lighter in color
- Enamel thinner & of consistent thickness
- Large pulp chambers with prominent pulp horns
- Dentin thickness limited – thin over pulp horns
- Enamel rods oriented occlusally instead of gingivally
- Occlusal convergence
- Roots: proportionally longer, short root trunk, flared
Primary teeth
