lecture 7 Flashcards
list characteristics of the primary dentition
a. symmetrical crown shapes
b. interdental spacing
c. no angulation of incisors
d. less variability in occlusal relations than the permanent dentition
e. arch width changes with growth
larger spaces called _____ spaces are found mesial to upper canines and distal to lower canines
primate
if there is no interdental spacing in the deciduous dentition, what will occur
crowding of permament dentition
are anterior primary or permanent teeth smaller
primary
6mm primary
9mm adult
size of
upper 2P=
primary upper 2M=
lower 2P=
primary lower 2M=
upper 2P= 7mm
primary upper 2M= 8.2 mm
lower 2P= 7mm
primary lower 2M= 9.9mm
imaginary line that passes through the occlusion of the teeth
occlusal plane (curved)
primary teeth are positioned _____ degrees to occlusal plane. permanent teeth are NOT
90 degrees
is the deciduous or permanent dentition variable
permanent
response of the dentoalveolar process to the skeletal dysplasia or to functional disturbance are not fully expressed
dentoalveolar compensations
if a malocclusion is diagnosed in the primary dentition, it will most probably
get worse during growth
deciduous upper and lower incisors are
vertical
normal occlusal changes are due to ______ in deciduous dentition, NOT from dental changes
skeletal growth
altering functional environment or neuromuscular pattern or introducing habits such as digit sucking can alter ____ and _____ resulting in malocclusion
skeleton and occlusion
ectopic dental eruption and unfavorable skeletal pattens can lead to
malocclusions
