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Dental Hygiene Dental Anatomy
Test 5
85
Dentistry
Undergraduate 2
12/03/2012

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Cards

Term
When do primary teeth begin to be replaced by permanent teeth
Definition
Beginning around age 6
Term
What is another word to describe primary teeth?
Definition
Deciduous
Term
Deciduous comes from the Latin word meaning?
Definition
"To fall out"
Term
Name one of the of the common nicknames for primary teeth
Definition
Milk teeth
Baby teeth
Temporary teeth
Term
Which primary tooth remains in the mouth the longest?
Definition
Maxillary canine
Term
Which arch of primary teeth remain in the mouth longer than the other arch?
Definition
Maxillary teeth
Term
Name one way primary teeth play an important role in the mouth?
Definition
By proper alignment
By spacing
By occlusion of secondary teeth
Term
Why are permanent molars called non-succedaneous teeth?
Definition
They have no predecesors
Term
Spell the word deciduous
Definition
deciduous
Term
Which permanent teeth replace the primary molars
Definition
Permanent pre-molars
Term
How many teeth are in the primary dentition
Definition
20
Term
Are there premolars in the primary dentition
Definition
No
Term
How many primary teeth are in the Maxillary arch
Definition
10
Term
How many primary incisors are in the mandibular arch
Definition
4
Term
How many primary molars are in the maxillary arch
Definition
4
Term
How many anterior teeth are in the maxillary arch
Definition
6
Term
Give the total # of primary molars in the mouth
Definition
8
Term
When is a primary tooth completely formed in the oral cavity
Definition
Just a year after emergence into the oral cavity
Term
The increasing loss of ______ from ________ results in the eventual loosening of the primary tooth and it falls out of the jaw
Definition
Root attachment from root resorbtion
Term
The primary teeth are _____ in color that permanent teeth
Definition
whiter
Term
Primary teeth are ______ in size than permanent
Definition
smaller
Term
Primary teeth have _______ __________ in respect to their roots?
Definition
shorter crowns
Term
The crowns have a marked ______ at the cervix appearing as if they are being squeezed by a ____________
Definition
construction, rubber band
Term
Layers of enamel and ______ are thinner
Definition
dentin
Term
___ ____ are proportionately larger than in permanent teeth
Definition
pulp cavities
Term
deciduous teeth have more ____ shapes than the permanent teeth
Definition
consistent
Term
Because deciduous teeth have more consistent shapes than permanent teeth, they have fewer ______
Definition
anomalies
Term
The crowns on deciduous teeth appear ______, often having labial or buccal cingula.
Definition
Bulbous
Term
Primary teeth have mamelons?
Definition
No
Term
The cervical ridge on the facial surface is prominent and runs in which direction on primary anterior teeth?
Definition
mesiodistally in the cervical 1/3
Term
The primary root is what in length in proportion to the crown?
Definition
longer
Term
The primary root is narrower in which direction?
Definition
mesiodistally
Term
The primary roots of the anterior teeth bend in what direction
Definition
labially
Term
The primary molar crowns have a narrow occlusal table in which direction
Definition
Buccolingually
Term
The primary molars have what type of cusps
Definition
short
Term
It is easy to distinguish primary posterior teeth by right and left sides. How?
Definition
The mescal cervical ridge is prominent
Term
Which primary molar is decidedly larger than the other molar?
Definition
2nd molars
Term
The primary root furcation is near what?
Definition
The crown
Term
There is little if any ____ _____ in primary molars.
Definition
Root trunk
Term
How are 2nd molar roots different from 1st primary molar roots?
Definition
They are more widely spread apart
Term
At what age does the 1st deciduous tooth erupt
Definition
6 mo
Term
Which deciduous tooth erupts into the mouth first
Definition
mandibular central incisors
Term
when is the complete primary dentition formed in the mouth with no permanent teeth present?
Definition
From 2 yrs - 6 yrs. old
Term
When does the 1st permanent molar erupt in the mouth?
Definition
6 years old
Term
Which is the 1st permanent molar to erupt in the mouth
Definition
Mandibular 1st molar
Term
At what age are the primary Maxillary canines lost?
Definition
11.5-12.5 years of age
Term
How many teeth are usually present in mixed dentition?
Definition
24
Term
Name one important function of sound primary teeth?
Definition
Formulation of clear speech
Term
What causes dark spots or Turners Spots on a permanent developing tooth?
Definition
An abcess caused by infection
Term
What is the eruption date for the primary Maxillary lateral incisor
Definition
9 mos.
Term
What is the eruption date for the primary Mandibular central incisor
Definition
6 mos.
Term
The primary lateral root appears bigger than the root of the central incisor. From the proximal view it bends lingually in its cervical 1/3 and labially in its apical 1/3. This is known as the ________
Definition
s curve
Term
What does CEJ stand for?
Definition
cementoenamel junction
Term
From the mesial/distal aspect the maxillary primary central incisors CEJ (cervical line) is more _______ positioned on the lingual side than on the labial side
Definition
apically
Term
On the labial aspect of the maxillary canine, the mesial and distal surfaces are ______
Definition
convex
Term
On the labial aspect of the maxillary canine, the cervical line is ____
Definition
flat
Term
On the maxillary canine, from the lingual aspect, you will find on either side of the lingual ridge both a mesial and distal _____
Definition
fossa
Term
Maxillary primary canine, on the distal aspect, the distal contact is more ____ located
Definition
incisally
Term
what is the crown length of a maxillary primary 1st molar
Definition
6 mm
Term
what is the root length of a deciduous mandibular canine?
Definition
11.7 mm
Term
are primary pulp cavities larger or smaller than permanent pulp cavities
Definition
larger
Term
pulp chambers of primary molars have long, usually narrow pulp horns extending where?
Definition
beneath the cusps
Term
The larger deciduous pulp cavity is due to?
Definition
thinner enamel covering
Term
the maxillary primary 2nd molar has how many roots?
Definition
3
Term
the mandibular primary 2nd molar has how many roots?
Definition
2
Term
which mandibular primary 2nd molar root is longer and wider?
Definition
mesial
Term
which primary maxillary 1st molar cusp is the second longest but sharpest cusp on the tooth
Definition
mesiolingual cusp
Term
which primary molar has an H pattern of grooves from the occlusal aspect?
Definition
maxillary 1st molars
Term
how many pits are found on the primary maxillary 1st molar from the occlusal aspect?
Definition
3
Term
name the 3 pits found on the primary maxillary 1st molar from the occlusal aspect
Definition
mesial, central, distal
Term
on the primary 2nd molar, all of the cusp ridges and fossae correspond to those of the permanent 1st molar, but it has no cusp of carabelli
Definition
false
Term
mandibular primary 1st molars have how many cusps
Definition
4
Term
on primary mand 2nd molars, buccal aspect, the root is how much longer than the crown
Definition
twice as long
Term
on the primary 1st mand molars, buccal aspect, the mesial contact area on the canine is located where?
Definition
more cervically
Term
just like all permanent mandibular molars, primary mandibular teeth appear to lean in which direction
Definition
lingually
Term
on which primary mandibular molar, from proximal views, has a high marginal ridge that is crossed by a groove that extends 1/3 of the way down the mesial surface?
Definition
primary mandibular 2nd molar
Term
the distal marginal ridge on the distal aspect of the mandibular 1st molars is shorter buccolingually. In what direction is the distal marginal ridge located so more occlusal surface is seen?
Definition
cervically
Term
from the lingual aspect, on primary mandibular 1st molars, the mesial marginal ridge is so well developed it resembles what?
Definition
a cusp
Term
occlusal aspect, the occlusal anatomy on a primary mandibular 1st molar is what? This is a dentition trait
Definition
shallow
Term
Which cusp is the largest on the primary mandibular 2nd molar from the occlusal aspect?
Definition
distobuccal
Term
Name the tooth that corresponds with the letter E
Definition
Maxillary right central incisor
Term
What letter corresponds to the mandibular left lateral incisor
Definition
N
Term
Name the tooth the corresponds with the letter T
Definition
Mandibular right 2nd molar
Term
using the universal numbering system, for permanent and primary teeth, numbering starts on which side of the mouth and which arch?
Definition
right side, maxillary arch
Term
microscopically, the enamel rods at the cervix slope ______, unlike in permanent teeth where these rods slope _______
Definition
occlusally, cervically
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