Incisors Flashcards
Incisor quiz on 11/18
smallest incisor
mandibular central
can show a strong resemblance to canines
maxillary lateral
has one root
all incisors
occludes with one opposing tooth
mandibular central
mamelons may be present
all incisors
widest incisor (mesiodistally)
maxillary central
less prominent lingual structures
mandibular incisors
last to erupt
maxillary lateral
crown appears rotated on its root axis
mandibular lateral
has conical root with no grooves
maxillary incisors
often displays variations in form
maxillary lateral
lateral is larger than central
mandibular incisors
mesial surface has greatest cervical line curvature
maxillary central
often has a lingual pit
maxillary lateral
shows linguoincisal wear
maxillary incisors
which incisors would typically be present in a 6 year old
mandibular centrals
which incisors would typically be present in a 7 year old
maxillary centrals, mandibular centrals, mandibular laterals
which incisors would typically be present in a
ALL
max and mand centrals and lat
calcification of maxillary central
3 to 4 months
eruption of maxillary central
7 to 8 years
root completion maxillary central
10 years
number of pulp horns maxillary central
3
number of roots maxillary central
1
number of developmental lobes maxillary central
4
calcification maxillary lateral
1 year
eruption maxillary lateral
8 to 9 years
root completion maxillary lateral
11 years
number of pulp horns maxillary lateral
1-3
number of roots maxillary lateral
1
number of developmental lobes maxillary lateral
4
calcification mandibular central
3 months
eruption mandibular central
6-7 years
root completion mandibular central
9 years
number of pulp horns mandibular central
3
number of roots mandibular central
1
number of developmental lobes mandibular central
4
calcification mandibular lateral
4 months
eruption mandibular lateral
7 to 8 years
root completion mandibular lateral
10 years
number pulp horns mandibular lateral
3
number roots mandibular lateral
1
number developmental lobes
4
t/f: maxillary central incisors are largest permanent incisors
true
t/f: permanent mandibular central incisors are smallest permanent teeth
true
t/f: mandibular incisors erupt with their incisal edges already worn in
false
t/f: permanent maxillary centrals vary more in form than any other maxillary teeth
false
laterals do
t/f: maxillary incisors have their contact areas located more incisally than mandibular incisors
false
t/f: because of their longer roots, maxillary laterals have a greater crown to rooth ratio than maxillary centrals
false
lesser crown to root ratio
t/f: maxillary centrals and laterals are wider faciolingually than mesiodistally
false; mandibular incisors are
t/f: maxillary incisors have their incisal edges toward the lingual surface
true
t/f: of the mandibular incisors, the lateral has largest crown and largest root
true
characteristics found exclusively on incisors
true incisal ridges
mamelons
convexity that runs from linguocervical third of anterior teeth onto lingual fossa is the
cingulum
because they are more likely to have lingual pit, what tooth hs more lingual cavities
maxillary laterals
only anterior teeth wider mesiodistally than faciolingually
maxillary incisors
most distinguishing feature of mandibular lateral incisor
distal rotation of crown over the root
tooth most likely to have a proximal groove in root
mandibular lateral
incisor most likely to vary in number of pulp horns
maxillary lateral
incisors tipped lingually in a class II divisionII orthodontic malocclusion
maxillary centrals and sometimes maxillary lateral incisors as well as mandibular incisors
incisors have only one antagonist
mandibular centrals
