Study Guide Chart Flashcards
number the maxillary central incisors
8 and #9
maxillary central incisor formation begins
3-4 months
maxillary central incisor eruption occurs
7-8 years
maxillary central incisor root completion occurs
at 10 years
maxillary central incisor CEJ
convex curve toward the apex of the root
maxillary central incisor root
smoothly tapered conical shape
root cross section is TRIANGULAR
apex may curve toward distal
maxillary central incisor distal mesial edge
more rounded, approx 90 degrees
maxillary central incisor lingual fossa
surrounded by 4 convexities:
1. mesial MR – longer
2. distal MR
3. cingulum – distal
4. incisal ridge/edge
maxillary central incisor cingulum
displaced toward the DISTAL
maxillary central incisor contacts
distal contact MORE CERVICAL than mesial contact
maxillary central incisor HOC
facial = cervical 1/3
lingual = cingulum
maxillary central incisor crown to root ratio
close to 1
maxillary central incisor apex and crown alignment
almost a straight line
maxillary central incisor mamelons
developmental protuberances of enamel on the incisal edges of newly erupted teeth
lobes of development (4)
maxillary lateral incisors tooth #
7 and 10
maxillary lateral incisors formation begins
10-12 months
maxillary lateral incisors eruption occurs
8-9 years
maxillary lateral incisors root completion occurs
11 years
maxillary lateral incisors root
longer root than maxillary centrals, curves toward distal
maxillary lateral incisors lingual view
deeper lingual fossa than maxillary centrals
maxillary lateral incisors cross section
ovoid
maxillary lateral incisors distal edge
distolingual developmental groove
maxillary lateral incisors lingual tubercule
looks like a cusp but is the cingulum
maxillary lateral incisors HOC
facial = cervical 1/3
lingual = cingulum
mandibular central incisors tooth #
24 and 25