Dental Anatomy Morph. Class Traits

Front 1

What are 4 features of incisors

Back 1

-used for cutting
-flat, with horizontal biting edge
-single roots
-is only teeth w/ mamelons ( ridges on front)

Front 2

What are canines used for?
How are they unique to all the other teeth in the mouth?

Back 2

used for piercing and tearing
-longest roots in mouth (most stable)
-eminent facially
-mouth's cornerstones; only teeth that have a conical cusp (cuspid)

Front 3

Premolars are used for what? How are they unique?

Back 3

-used for grinding (lower P1 is similar to canine in looks)
-has 2 cusps (single buccal with 1 or more lingual)
-has 1 or 2 roots

Unique: most nearly perpendicualr aligned teeth in both arches

Front 4

What are molars used for? Why are they unique?

Back 4

-used for grinding
-largest occlusal surface of all teth
-3 to 5 cusps (at least 2 buccal ones)
2 roots for lower molars and 3 for upper molars

Front 5

The mesial CEJ line is more _________ positioned than the distal CEJ line and becomes ______ pronounced posteriorly

Back 5

occlusally, or incisally;
less

Front 6

The roots frequently incline _____

Back 6

distally

Front 7

The distal crown contours are usually more ______ than the mesial. _______ are more gingivally positioned

Back 7

rounded; distal contact areas

Front 8

All anterior teeth and posterior teeth are formed by _______, whith the exception of ____ which has ________

Back 8

4 developmental lobes, 3 facial 1 lingual with exception of Y type mand 2nd premolar which has 5 lobes (3 facial, 2 lingual)

Front 9

All teeth have a facial height of contour in the ______.

Back 9

cervical 1/3 of crown

Front 10

All anterior teeth of a lingual height of contour in the _____

Back 10

cervical 1/3 crown

Front 11

All posterior upper teeth have a lingual height of contour in the _______

Back 11

middle 1/3 crown

Front 12

All lower posterior teeth have a lingual height of contour more ______

Back 12

occlusally possitioned than upper teeth

Front 13

How do the buccal and lingual surfaces of upper and lower posterior teeth differ?

Back 13

All upper posteriors have 2 planar lingual surface and a straight buccal surface.

all lower posteriors have 2 planar buccal and a straight lingual surface

Front 14

Proximal contact areas of all posterior teeth are usually _____ and _____ to the midpoint of the crown

Back 14

buccal and occlusal

Front 15

How does the lingual anatomy compare between maxillary and mandibular anterior teeth?

Back 15

maxillary anteriors have more pronounced lingual anatomy than mandibular

Front 16

Maxillary incisors are wider _____ than ______
2) mandibular incisors are wider ___ than _____

Back 16

1) mesiodistally than faciolingually
2) faciolingualy than mesiodistally

Front 17

1) maxillary molars are wider ___ than ______
2) mandbular molars are wider ____ than _____

Back 17

1) wider BL than MD
2) wider MD than BL

Front 18

What's the 1st most variable type of teeth morphologically? 2nd most variable?

Back 18

1st: upper and lower 3rd molars
2nd: maxillary lateral incisors

Front 19

What are the first permanent teeth to erupt and when?

Back 19

Permnant 1st molards begin calcificatin at birth and are first ones to erupt at age 6

Front 20

What replaces primary molars?

Back 20

premolars

Front 21

What type of teeth are not considered succedaneous?

Back 21

Permanent molars erupt distal to primary dentition so they are not succedaneous.

Front 22

When do you first see mixed dentition?

Back 22

Starts when permanent first molars erupt

Front 23

When is formation of enamel completed?

Back 23

Usually 3 to 4 years before eruption

Front 24

When is formation of root completed?

Back 24

continues 2 - 3 years after erupts; approx half of the root is formed before eruption