Quiz 2

Question 1

Primary Dentition

Answer 1

Baby teeth
20 teeth
4 2nd molars
4 1st molars
4 cuspids(canine)
4 lateral incisors
4 central incisiors

Question 2

Primary Dentition Timeline

Answer 2

Arrive 6 months (P+O)
Age 3, all 20 teeth
First begin losing at age 5 1/2

Question 3

Mixed Dentition

Answer 3

Combo of adult and baby teeth

Happens at age 6, ends at 12

Question 4

Permanent Teeth

Answer 4

Adults set
32 teeth
4 3rd molars (wisdom)
4 2nd molars (12 year)
4 1st molars (6 year)
4 2nd bicuspids
4 1st bicuspids
4 lateral incisors
4 central incisors

Question 5

When do the last teeth erupt?

Answer 5

18-25 years old.

Question 6

Primary Dentition Start

Answer 6

Eruption of primary mandibular central incisor

Question 7

Mixed Dentition Start

Answer 7

Eruption of permanent mandibular first molar

Question 8

Permanent Dentition Start

Answer 8

Shedding of last primary tooth

Question 9

Alveolar Process

Answer 9

Bone mat that holds teeth in

Question 10

Alveolus

Answer 10

Tooth sockets

Question 11

Incisal

Answer 11

Bottom end of anterior teeth (cutting teeth)

Question 12

Mesial

Answer 12

Side of tooth toward the midline

Question 13

Distal

Answer 13

Furthest away from the midline

Question 14

Palatal

Answer 14

Backside closest to root of mouth

Question 15

Lingual

Answer 15

Inside of mouth

Question 16

Occlusal

Answer 16

Table top portion where you chew and grind

Don’t have on anterior teeth

Question 17

Proximal

Answer 17

Mesial and distal surface between adjacent teeth

Mesial of one tooth touching distal of another

Question 18

Only area where two mesial surfaces are touching

Answer 18

8 and 9

24 and 25

Question 19

Facial/Buccal/Labial

Answer 19

Sides of tooth where lips touch

Question 20

Embrasures

Answer 20

Triangles formed by sloping away of mesial and distal surfaces. may diverge:
Facially, Lingually, Occlusally, or apically w/ loss of tissue

Question 21

Height of Contour

Answer 21

Widest part of tooth

Teeth wider at top than bottom

Question 22

Contact

Answer 22

Keep food from being wedged in

Where most people get cavities

Question 23

Line Angles: Anterior (Corner of tooth)

Answer 23

Distolabial
Distolingular
Mesiolingual
Mesiolabial
Labioincisal
Linguoincisial

Question 24

Root Thirds

Answer 24

Apex: Tip of tooth
Apical: root 3rd
Middle 3rd
Cervical: Neck of tooth 3rd

Question 25

Crown Thirds

Answer 25

Cervical: Neck Middle 3rd Incisal: Tooth edge

Question 26

Anterior Teeth consist of:

Answer 26

6 Teeth per arch 4 Maxillary Incisiors (central,lateral) 2 canine/cuspid 4 Mandibular Incisors (Central, Lateral)

Question 27

Lobe Development

Answer 27

Tooth enamel develops in lobes

Question 28

Newly Erupted Permanent Incisors

Answer 28

``` Mamelons- lumps on end Imbrication Lines: Horizontal, Developmental lines Incisal edge and angles Height of contour: Cervical 3rd Mesial Contact: Incisal 3rd ```

Question 29

Lingual Surface Features

Answer 29

``` Cingulum Mesial Marginal Ridge Distal Marginal Ridge Height of contour: Cervical 3rd Mesial Contact: Incisal 3rd ```

Question 30

Additional Lingual Surface Features

Answer 30

Some have developmental pit/supplemental pit, which is prone to decay Fossa/Wide depression

Question 31

Characteristics of Permanent Incisors

Answer 31

``` Incisal edge and angles Height of contour: cervical 3rd Mesial contact: incisal 3rd Shaper MI angle, Rounder DI angle, more pronounces CEJ curve Single-rooted ```

Question 32

Maxillary Central Incisors

Answer 32

``` Widest crown MD Greatest CEJ curve Distal offset cingulum Shallow lingual fossa Marginal ridges Distal contact: Junction of incisal and middle 3rds Overall conical root shape No proximal root concavities Rounded root apex ```

Question 33

Pulp

Answer 33

Where the nerves are

Question 34

Characteristics of Maxillary Lateral Incisors

Answer 34

Greatest Crown variation Smaller than maxillary center, but similar Prominent lingual surface Centered cingulum Pronounced marginal ridges Root curves distally w/ sharp apex Same/longer root than center, thinner though

Question 35

Characteristics of Mandibular Central Incisors

Answer 35

``` Smallest/Simplest Bilaterally symmetrical Small centered cingulum Subtle lingual fossa Equal, subtle marginal ridges Distal contact: incisal 3rd Root longer than crown Proxmial root concavities give double rooted look ```

Question 36

Characteristics of Mandibular Lateral Incisors

Answer 36

``` Larger than central mand. Not bilaterally symmetrical Appears twisted distally Small, distal cingulum Lingual fossa Moderate mesial marginal ridge longer than distal Distal contact: incisal 3rd ```

Question 37

Characteristics of Permanent Canines

Answer 37

``` Single cusp, w/ tip and slopes Labial, marginal and lingual ridges Cingulum and lingual fossa Longest tooth in each dentition Height of contour: labial cervical 3rd, lingual middle 3rd Shorter mesial cusp slope More cervical contact on distal More pronounces mesial CEJ curve Long, thick single root Proximal root concaviites ```

Question 38

Characteristics of Maxillary Canines

Answer 38

``` Sharp cusp tip Prominent lingual crown Mesial contact: junction of incisal and middle 3rds Distal contact: middle 3rd Shorter distal outline on labial Depresssion b/w distal contact and CEJ Blunt root apex ```

Question 39

Characteristics of Mandibular Canines

Answer 39

Smoother lingual Less sharp cusp tip Mesical contact: incisal 3rd Distal contact: Junction of incisal and middle 3rd Shorter and rounder distal outline on labial Shorter mesial slope than distal Developmental depression on M and D of root (double root appearance) Pointed root apex

Question 40

Hutchinson's Disease

Answer 40

Incisors aren't fully developed