Quiz 2-caries classification

Question 1

G.V. Black

Answer 1

1908-a work in operative dentistry

Question 2

Caries Class 1

Answer 2

caries on pit and fissure

Question 3

Caries Class 2

Answer 3

Proximal Surfaces of molars and premolars

Question 4

Class III lesions

Answer 4

proximal surfaces of anterior teeth not involving incisal edge

Question 5

Class IV

Answer 5

caries affecting proximal and incisal

Question 6

Class V

Answer 6

Caries Affecting gingival 1/3 of facial or lingual of all

Question 7

Class VI

Answer 7

never described by G.V. black, affects cusp tips of molars, premolars, and cuspids (other ant do not have a tip)

Question 8

Molars weird caries

Answer 8

Can have class I and Class V b/c there is a pit and smooth part on buccal

Question 9

Simple lesion/restoration

Answer 9

1 surface

Question 10

Compound

Answer 10

2 surfaces

Question 11

Complex

Answer 11

3 or more

Question 12

smooth surface

Answer 12

sides of teeth

Question 13

Pit and fissure

Answer 13

occlusal grooves and pits

Question 14

increases restoration longevity

Answer 14

achieving proper outline form for tooth prep

Question 15

another word for floor or seat

Answer 15

wall

Question 16

name for wall

Answer 16

seat or floor

Question 17

Types of walls/seats

Answer 17

Pulpal floor

Gingival floor/wallseat

Question 18

most likely wall to be missing

Answer 18

gingival

Question 19

Axial wall

Answer 19

parallel to long axis of tooth, vertical plane

Question 20

internal walls

Answer 20

axial and pulpal

Question 21

pulpal wall

Answer 21

perpendicular to long axis

Question 22

Ling angle

Answer 22

junction of two walls

Question 23

Point angle

Answer 23

junction of three walls (i.e. disto-facial-pulpal)

Question 24

margin

Answer 24

junction of cavity wall and external tooth surface- aka cavosurface margin- angle at the junction

Question 25

cavosurface margin

Answer 25

junction of cavity wall and external tooth surface

Question 26

first step in Black’s Steps

Answer 26

outline form, visualize; place cavity margins in the tooth

Question 27

factors influencing outline form

Answer 27

location of lesion, size, anatomy, material, esthetic, adjacent structures, function, retention

Question 28

Primary determinant of outline form

Answer 28

Size of lesion-spreads laterally

Question 29

Lesions spread quickly _____

Answer 29

laterally

Question 30

unsupported enamel

Answer 30

not supported by dentin, needs to be removed for prep

Question 31

Resistance Form

Answer 31

Shape and placement of prep walls to enable restoration and withstand without fracture through force in long axis

Question 32

Resistance form keys

Answer 32

flat, perpendicular walls/floor; conservation w/o keeping weak tooth feature, proper material

Question 33

angle of amalgam at cavosurface

Answer 33

90

Question 34

Retention Forms

Answer 34

keeps filling in, shape or form that resists displacement or removal

Question 35

Retention form factors

Answer 35

dovetails, convergent walls, grooves, pins, acid etch,

Question 36

dovetail

Answer 36

hook at the end of prep

Question 37

convergent wall

Answer 37

pulpofloor to occlusal surface, narrows occlusally

Question 38

convergence where

Answer 38

occlusal-smaller

Question 39

pins

Answer 39

used less now, large replacements

Question 40

Convenience Form

Answer 40

modification to outline form which allows access to prep the lesion

Question 41

Removing caries dentin and idea depth

Answer 41

prep .5 mm inside the DEJ-clinical would be dictated by type/size of lesion

Question 42

Remove carious dentin from

Answer 42

only the affected area, preserve healthy tooth structure

Question 43

finishing

Answer 43

smooth, easier to clean and maintain; prevent recurrent caries

Question 44

direction of enamel rods

Answer 44

converge from DEJ to surface in pits and grooves and diverge from DEJ to cusps/ridges

Question 45

Rod orientation in primary teeth

Answer 45

different

Question 46

____ from DEJ to surface in pits and grooves

Answer 46

converge

Question 47

Goal for enamel rods

Answer 47

rest on sound dentin

Question 48

____ from DEJ to cusps/ridges

Answer 48

diverge

Question 49

distal-mesial cross section rods are ____ from pulpa to occlusal

Answer 49

divergent occlusally (wider at the occlusal)