Exam 2: Burs, Classes, instruments, rando

Question 1

What is the narrowest part of the preparation?

Answer 1

the isthmus

Question 2

What is the junction between the unprepared tooth and the prepped tooth?

Answer 2

the Cavo-Surface

Question 3

What is a line angle?

Answer 3

the line between any 2 walls or floors

Question 4

What is a point angle?

Answer 4

the point between any 3 walls or floors

Question 5

Cavity Prep Class: Pits and fissures of occlusal surfaces of posterior teeth (premolars and molars)

Answer 5

Class I

Question 6

Cavity Prep Class: Pits in the occlusal 2/3 of facial and lingual surfaces of molars

Answer 6

Class I

Question 7

Cavity Prep Class: Lingual pits of maxillary incisors In the top 2/3 of tooth

Answer 7

Class I

Question 8

Cavity Prep Class: Which teeth can have a Class I prep?

Answer 8

All! posteriors and anteriors

Question 9

Cavity Prep Class: Smooth proximal surfaces of posterior teeth (premolars and molars)

Answer 9

Class II

Question 10

Cavity Prep Class: Smooth proximal surfaces of anterior teeth (incisors and canines)

Answer 10

Class III

Question 11

Cavity Prep Class: Smooth proximal surfaces of anterior teeth (incisors and canines) which involve the incisal edge as well

Answer 11

Class IV

Question 12

Cavity Prep Class: Smooth surfaces of all teeth in gingival 1/3 of facial and lingual surfaces

Answer 12

Class V

Question 13

Cavity Prep Class: Incisal edges of anterior teeth and occlusal cusp tips of posterior teeth

Answer 13

Class VI

Question 14

What color is the High Speed handpiece? What is the max RPM range?

Answer 14

RED! 300-400K RPMs

Question 15

What color is the Slow speed hand piece? What is the max RPM range?

Answer 15

Green….30K RPMs

Question 16

What are the two types of heads for the slow speed?

Answer 16

Latch type and friction grip

Question 17

What is the diameter of the explorer?

Answer 17

0.5 mm

Question 18

Perio probes come in either ___mm increments or ___mm increments

Answer 18

1mm or 3mm

Question 19

The #__ hatchet has a 1mm width. The #__ has a 1.5 mm width.

Answer 19

10…#15

Question 20

How many mm wide is a #12 hoe?

Answer 20

1.2 mm

Question 21

Hatchets are for ________ teeth. Hoes are for ______ teeth.

Answer 21

Hatchets=mandibular…..hoes=maxillary

Question 22

On a hoe, the _____ end touches the tooth and the _______ end faces the inside of the preparation.

Answer 22

flat….beveled

Question 23

What is the prime example of a margin trimmer that helps trim away excess material from the gingival margin?

Answer 23

14L DeMeo Carver

Question 24

What are spoons for?

Answer 24

removing decay

Question 25

What is the instrument that if Dr. Huang would choose if he was stranded on an island and could only have 1 instrument? What are its 4 functions?

Answer 25

The plastic filling instrument....1.Composite 2.Amalgam 3.Retraction 4.Separating Teeth

Question 26

What are the coated composite instruments called?

Answer 26

XTS instruments

Question 27

What do we use for gold and amalgam bands?

Answer 27

burnishers!

Question 28

What are the 4 types of burnishers?

Answer 28

1. Ball 2.egg 3.Beavertail 4.Acorn

Question 29

A carbide bur is made of ______ carbide added to ______. Which way does a carbide cut.

Answer 29

tungsten....steel...clockwise

Question 30

Diamond burs are diamond particles baked into a ______ substrate.

Answer 30

nickel

Question 31

Which bur do we use with ceramics?

Answer 31

diamond

Question 32

These are ______ burs....1/4,1/2,1,2,4,6,8

Answer 32

ROUND

Question 33

These are ______ burs....33, 33.5...34

Answer 33

Inverted Cone

Question 34

These are _____ burs...379

Answer 34

Egg

Question 35

These are ______ burs...135

Answer 35

Needle

Question 36

These are ______ burs...56,57

Answer 36

Straight

Question 37

These are ______burs...330,244,245

Answer 37

Pear

Question 38

These are ______ burs....169

Answer 38

Tapered

Question 39

These are ______ burs...956

Answer 39

end-cutting

Question 40

These are ______ burs...856

Answer 40

Tapered Chamfer

Question 41

The more flutes on your carbide, the ______ the cutting.

Answer 41

smoother

Question 42

What # bur is an example of a rounded edge bur?

Answer 42

247