Primary Flashcards
(34 cards)
Primary dentition notation
A-J
K-T
succedaneous teeth def.
replace primary teeth
Primary teeth crowns form
4-6 months in utero
Rule of three
For permanent dentition:
3 years for crown to fully form
3 years to erupt
3 years to fully form
Timeline for primary teeth
crown development: 6 mnths in utero
Crown complete: 6 mnths
Root complete: 1.5-3 yrs after eruption
Replacement: 6-12 yrs
Timeline for permanent teeth
Crowns complete: 3-4yrs prior to eruption
Root complete: 3 yrs after eruption
Primary teeth are _____(color) than maxillary?
whiter
Primary teeth have _________ at CEJ w/ cervical crown _____
constriction
bulges
Primary teeth have _____ roots compared to crowns
long
Enamel and dentin of primary teeth __________
thinner
Primary anterior teeth have ________ cingula
prominent
Primary anterior teeth have no depressions, mamelons or ______
perikymata
Primary anterior teeth have roots that bend _____
labially in apical third
Primary teeth molars have ________ cervical ridge exaggerated with cervical line curve ______
mesial
apically
Primary teeth molars-crowns taper narrower toward ______
occlusal
Primary molars Wider MD or OC
MD
Primary teeth molar anatomy
little
shallow grooves etc
Primary teeth molars-second or first larger
second
Primary teeth molars- size of root trunks
small. root furcation near crown
Primary teeth molars-root divergence
wide to make room for permanent premolars
Crowns of primary incisors MD vs IC
wider IC except max CI
Lingual anatomy of primary incisors
Max CI prominent marg. ridges
Prominent cingula
Little anatomy on mand incisors
Only teeth with mesial contact more cervical than distal (mesial cusp ridge longer)
Primary max canine
Perm mand 1 premolar
What primary tooth has pronounced concave S shape on lingual side
max canines