Quiz 1 Flashcards
Single roots are found on what teeth?
Incisors, canines and some premolars
Two roots with a bifurcation are found on what teeth?
some premolars and molars
Three roots with a trifurcation are found in what teeth?
Maxillary molars
What is the alveolar process?
The location in the jaw where roots are held
The bone of the tooth socket is called what?
Aveolus
Deciduous teeth form after how many weeks in utero?
16
When do primary teeth first appear?
About 6 months
When does the last primary tooth appear?
About 24 months
What primary teeth generally appear first?
Mandibular anterior central incisors
How long does mixed dentition last?
About 6-12 years
When do permanent maxillary anterior incisors erupt?
7-8 yrs
When do permanent max lateral incisors erupt?
8-9 years
When do permanent max canines erupt?
11-12 yrs
When do permanent bicuspids erupt?
10-12 years
When do 3rd molars erupt?
17-21 yrs
When do max molars erupt?
6-7 yrs, and 12-13 yrs
When do mand central incisors erupt?
6-7 yrs
When do mand laterals erupt?
7-8 yrs
When do mand canines erupt?
9-10
What are three tooth numbering systems we covered?
Palmer, FDI, and Universal
The palmer numbering system is used how? Describe it…
Teeth are labeled 1-8 and a 90 degree angle is drawn depicting the quadrant
What are the numbers of deciduous maxillary teeth?
A-J
What are the numbers of deciduous mandibular teeth?
K-T
What is the permanent maxillary tooth eruption order in years?
(7 8 1 0 0 6 2) CI: 7-8 years LI: 8-9 yrs Canine: 11-12 yrs 1st Premolar: 10-11 yrs 2nd premolar: 10-12 yrs 1st molar: 6-7 yrs 2nd molar: 12-13 yrs
What is eruption pattern of permanent mandibular teeth?
6 7 9 0 1 6 1 CI: 6-7 yrs LI: 7-8 yrs C: 9-10 yrs 1 pre: 10-12 yrs 2 pre: 11-12 yrs 1 molar: 6-7 yrs 2 molar: 11-13
When are primary teeth complete in eruption and formation?
about age 3
When does the deciduous central incisor erupt?
about 8 months - 12 months
What does succedaneous mean? How many succedaneous teeth do humans have?
Replaces an exfoliated deciduous tooth, we have 20
What are the 4 tooth tissues? Which are hard and which are soft?
Enamel, dentin, cementum (hard)
Pulp (soft)
What is the apical foramen?
A hole in apex of root that feeds the pulp chamber with nerves, blood supply, etc.
what is the major function of maxillary incisors?
cut and punch food
Do maxillary incisors have cusps?
No, have incisal edges of ridges
The labial surface of max. central incisor is More/Less convex than the max. lateral or canine
less
Which incisal edge is sharpest in max central incisor?
mesial incisal edge is sharper than distal edge
You may see what protrudences in max central incisors?
mamelons
What is the average length on max central from high point on cervix to incisal edge?
10-11 mm
What is average mesial - distal length from contact to contact? (widest part o tooth)
8-9 mm
Which outline is more convex in max central, mesial or distal?
Distal
The incisal outline on a max central curves very slightly downward toward what edge?
mesial incisal (toward center)
The root of a max central is usually what length?
2-3 mm longer than the crown from cervix to incisal edge
the curvatue of the cervical line is greater on what surface of the max central?
The curvature of the cervical line is greater on the mesial surface than the distal
when looking at max central from incisal view, which measurement is greater, the labiolingual, or the mesiodistal?
mesiodistal
In max central, where is the pulp cavity the widest?
cervical area
T/F: Max laterals vary more than any other teeth
False, they vary more than any other teeth with exception of the third molar
The max lateral is usually what width?
about 2 mm narrower than central
the root of a max lateral generally curves toward what edge?
distal
which root has a sharper apex, max central or max lateral?
max lateral
when looking at a max lateral from labial POV, which outline appears more rounded?
distal
On a max lateral, the cervical line curve is greater on which surface?
mesial
What is the biologic width?
the area, 2.04 mm avg, between the base of the gingival sulcus and the alveolar crest
What is the anatomical crown?
The entire area from the CEJ to the incisal surface
What is the clinical crown?
The visible portion of the crown
What is the periodontium?
The supporting and investing structures of the tooth; the gingiva, alveolar bone, PDL and cementum
What is the pulp cavity?
the space or void housing the entire dental pulp
What is the pulp chamber
the portion of pulp cavity that is housed in the coronal section of the tooth
What is the pulp canal
the portion of pulp cavity that is housed in the root
