WEEK 9 TEETH Flashcards
What is buccal?`
On the cheek side
What is lingual?
On the tongue side
What is occlusal?
On the surface of the dentition
What is apical?
On the root side (like a superior view of roots)
What is the term labial used for in teeth?
Surface of INCISORS facing the lips
What is heterodont dentition?
Characteristic of human dentition where the teeth look different and different types of teeth have different functions.
What is a feature of general incisors?
Usually have 1 root
Feature of upper incisors?
Larger than lower incisors, more assymetric
Feature of lower incisors?
More chissel shaped crown, much smaller than upper incisors, more symmetrical
What are characteristics of all canines?
Has one singular cusp compared with incisors that don’t have any cusps, Conical shape with LONGER roots for tearing food (most stress placed on this)
What are characteristics of upper premolars?
Bicuspid (two cusps), round crowns, Buccal and lungual cusps are almost equal in size, large medial-distal groove which cuts the occlusal surface in half , OVAL occlusal shape, TWO ROOTS
What are characteristics of lower premolars?
Also bicuspid but the buccal cusp is MUCH LARGER than the lingual cusp, mesio distal groove is reduced, only has ONE ROOT! Circular occlusal shape
What are characteristics of upper molars?
M1 has 4 cusps, M2 may have less 3-4 cusps (and smaller than M1) , and M3 is variable, rhombus shape occlusal surface, 3 major roots
What are characteristics of lower molars?
Usually has 4-5 cusps and two roots (less than upper),
What is the strongest tissue of the body?
Enamel (hydroxyapatite) (fibre like mineral crystals and small amount of water and protein that holds mineral fibres together)