Anatomy Flashcards
Dentition
The natural teeth in the dental arch
Primary/deciduous dentition
Baby teeth 20 of them A-K
Permanent/succedaneous dentition
Adult teeth 32 of them 1-32 molars not succedaneous
Mixed dentition
Period that takes place between ages 6-12 when there are some permanent and some primary
What age are all primary gone
12
What age is permanent dentition complete
14-15 except 3rd molars completed at 18-25
What stops after puberty has passed
Growth of jaw bone
Maxillary arch
Upper arch dose not move
Mandibular arch
Lower arch movable applies force on maxillary
Occlusion
When teeth of both arches in contact
Sextants
One sixth of dentition 3 in each arch 1-5, 6-11, 12-16 17-21, 22-27, 28-32
Incisors
Single rooted sharp thin edge cut food w/o heavy force shovel shape guides food into mouth
Canines
“Cuspids” corner of arch cutting/tearing longest teeth/roots in mouth last to be lost (cornerstone)
Premolars
“Bicuspids” buccal cusps hold food lingual grinds broad surface
Molar
4 or more cusps chews/grinds 4 or 5 cusps on occlusal surface