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Anterior Teeth
Max and Man Anterior Teeth
87
Other
08/18/2011

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Cards

Term
The anterior teeth are composed of?
Definition
the incisors and canines
Term
What tooth is the widest of all the anterior teeth in a mesial-distal dimension?
Definition
Maxillary central incisor
Term
How many developmental lobes are seen on the facial aspect of a maxillary central incisor? 
Definition
3
Term
The mesial incisal edge is close to _____ degrees on a maxillary central incisor.
Definition
90 degrees
Term
Which insisal edge is more rounded on a maxillary central incisor?
Definition
the distal incisal edge
Term
Where is the mesial contact of a maxillary central incisor?
Definition
the incisal 1/3
Term
Where is the distal contact of the maxillary central incisor?
Definition
junction of the incisal/middle third
Term

T/F

 

The lingual aspect has marginal ridges that frame the lingual fossa on a maxillary central incisor.

Definition
True
Term
On a maxillary central incisor, where is the cingulum located on the lingual surface?
Definition
the gingival third
Term
Which marginal ridge is longer on a maxillary central incisor? The MMR or the DMR?
Definition
The MMR is slightly longer
Term

T/F

The root of a maxillary central incisor is short and sharp at the apex.

Definition

False

 

Correct answer: it is long and blunted at the apex

Term
What tooth has the greatest curvature of the CEJ on the mesial?
Definition
Maxillary central incisor
Term
Where are the height of contours for the facial and lingual aspect of a maxillary central incisor?
Definition
in the gingival 1/3
Term
Between the distal and mesial aspects, which is the more convex in a maxillary central incisor?
Definition
the distal aspect is more convex
Term
The incisal edge of a maxillary central incisor is the junction between what two surfaces?
Definition
labial and lingual surfaces
Term
In a maxillary central incisor, is the facial surface of the crown concave or convex?
Definition
convex
Term
The proximal view of a maxillary central incisor is _____________.
Definition
triangular
Term
Which anterior tooth is the widest in a mesiodisal dimension?
Definition
maxillary central incisor
Term
The mesial CEJ curvature is greatest on what tooth?
Definition
maxillary central incisor
Term
What is the time of eruption for a permanent maxillary central incisor?
Definition
7-8 years
Term
The maxillary central incisors are teeth numbers...
Definition
8 and 9
Term
Teeth number 7 and 10 are....
Definition
The maxillary lateral incisors
Term
How many lobes is the entire maxillary central incisor made of?
Definition
4 (3 on the facial and 1 on the lingual)
Term
What structure does every anterior tooth have on the lingual aspect?
Definition
a cingulum
Term
What structure gives the height of contour to a maxillary central incisor?
Definition
cingulum
Term
Which marginal ridge is longer on the maxillary central incisor? MMR or DMR?
Definition
MMR is longer
Term
Can mamelons be on the maxillary central central incisors, the mandibular central incisors, or both?
Definition
Both, but they are more common on the mandibular central incisors.
Term
Radicular means what?
Definition
root
Term
What is the mesial contact of the maxillary central incisor?
Definition
junction of the incisal/middle 1/3
Term
What is the distal contact of the maxillary central incisor?
Definition
middle 1/3
Term

T/F

 

The marginal ridges of the maxillary lateral incisor are more rounded than those of the maxillary central incisor?

Definition
True
Term
Can the maxillay lateral incisor have a lingual pit?
Definition
yes
Term

On a maxillary lateral incisor, why is the

MMR >DMR?

Definition
Due to the fact that the incisal edge slopes
Term
What is the name of the groove on the lingual surface of the on the maxillary central incisor that extends to the root?
Definition
palatoradicular groove
Term

Where is the cingulum in the maxillay lateral incisor?

 

Is this the same for the maxillary central incisor?

 

Definition

Max laterial incisor - cingulum is on the lingual side in the middle of the tooth

 

Not the same for the max CI - it is more distal here

Term
In anterior teeth, the tooth always tapers towards the ________.
Definition
lingual
Term

T/F

 

The max lateral incisor may vary in form more than any other tooth except the 3rd molar?

Definition
True
Term
The max lateral incisor  is _________  rounded in all aspects than the max cental incisor.  
Definition
more 
Term
What dimension is wider on the max lateral incisor? The m-d or the f-l?
Definition
the m-d is slightly wider
Term
When do the permanent max lateral incisors erupt? 
Definition
8-9 years 
Term
What is the term for a developmental disturbance in the shape of teeth where there is angulation, or a sharp bend/curve in the root or crown of a formed tooth?
Definition
dilaceration
Term
When will a root be completely formed for a tooth?
Definition
3 years after eruption
Term
The maxillary canines are numbers ____ and _______.
Definition
6 and 11
Term
What do canine teeth have that no other anterior tooth has?
Definition
a cusp tip
Term
Is the max canine wider in the m-d or f-l dimension?
Definition
Wider in the f-l dimension
Term
A max canine's mesial aspect resembles an ________. Its distal aspect resembles a _________.
Definition
mesial aspect resembles an incisor
distal aspect resembles a premolar
Term
Max canine: what aspect is straight? what aspect is bulbous?
Definition
mesial is relatively straight
distal is convex and bulbous
Term
T/F
The mesial contact of a maxillary central incisor is in the middle 1/3.
Definition
False

Correct answer: the mesial contact is at the junction of the inc/middle 1/3
Term
Where is the distal contact of the max canine?
Definition
middle 1/3
Term
T/F
The cusp tip of a max canine is centered in a mesial/distal dimension.
Definition
true
Term
How many fossae does the max canine have?
Definition
2
Term
On a canine, which cusp ridge is greater? The MCR of the DCR
Definition
DCR is greater
Term
The coronal aspect of the max canine is ________ in shape.
Definition
triangular
Term
What is the widest anterior tooth in a facial-lingual dimension?
Definition
max canine
Term
What tooth is the transitional tooth from the anterior to posterior teeth?
Definition
canine
Term
What tooth is the longest tooth in the mouth? (cusp tip to root apex)
Definition
maxillary canine
Term
When does the max canine erupt?
Definition
11-12 years
Term
T/F

The max canine is the last permanent tooth to erupt.
Definition
True
Term
24 and 25 are the...
Definition
mandibular central incisors
Term
What are the smallest teeth in the mouth?
Definition
mandibular central incisors
Term
The mandibular central incisors are __________ symmetrical.
Definition
bilaterally
Term
mesial contact of a Man CI
Definition
incisal 1/3
Term
man CI distal contact
Definition
incisal 1/3
Term
What is commonly seen on the root of the man CI's, on the mesial and distal aspects?
Definition
developmental depressions
Term
The first succedaneous tooth to erupt in the mouth is?
When does it erupt?
Definition
mandibular central incisor

erupts at 5-6 years
Term
In what dimension is the man CI widest?
Definition
wider in the f-l aspect
Term
what are the most symmetrical teeth?
Definition
mandiublar CI's
Term
To tell what tooth occludes with what..
Definition
tooth + tooth = 33

ex. 8 occludes with 25 bc 8 + 25 = 33
Term
When do mamelons usually go away?
Definition
8 years old
Term
What kind of point angles does a mandibular lateral incisor have?
Definition
sharp MI and DI point angles
Term
The man laterals are ________ in a m-d dimension than the man CIs.
Definition
wider
Term
Mandibular lateral incisor:
mesial contact:
distal contact
Definition
both are the incisal 1/3
Term
The crown of a mandibular lateral incisor will always appear ___________.
Definition
twisted
Term
Why is a man lateral crown twisted?

Is it twisted distally or mesially?
Definition
bc it follows the curve of the arch

distally
Term
Mandibular laterals erupt at what age?
Definition
7-8 years
Term
Man lateral is broader in what dimension?
Definition
F-L
Term
T/F

The man canine is more broad m-d than the max canine.
Definition
False
correct answer: the man canine is more narrow m-d than the max canine
Term
On a man canine, what incisal angle is sharper? the mesioincisal or the distoincisal?
Definition
mesioincisal is sharper
Term
Why is the cups tip of a man canine not as sharp as the cusp tip of the max canine?
Definition
Because it occludes with the max canine and it is worn down over time.
Term
T/F
Man canine has 1 fossa
Definition
False

correct answer: it has 2 fossae
Term
Man canine mesial contact
Definition
incisal 1/3
Term
What is the distal contact of the man canine ?
Definition
middle 1/3
Term
Where do the MCR, DCR and lingual ridge all end?
Definition
at the cingulum
Term
the man canine arc from cusp tip to root apex is _________.
Definition
continuous
Term
What is the only anterior tooth in the mouth that can possibly have a bifurcated root?

where are the roots positioned?
Definition
mandibular canine

positioned facial and lingual
Term
Mandibular canine has the _______ crown in the mouth.
Definition
longest
Term
When does the mandibular canine erupt?
Definition
9-10 years