Lec 3 - Instrumentation

Question 1

Used to cut, plane and cleave tooth structure

Answer 1

hand instruments

Question 2

Burs, diamonds and drills

Answer 2

rotary instruments

Question 3

amalgam restorations require blank walls

Answer 3

convergent/parallel

Question 4

indirect restorations like gold ceramic and resin need these walls

Answer 4

divergent

Question 5

type of hand instrument classification system at buffalo

Answer 5

internal

Question 6

Instruments used to cut and shape tooth structure and includes hatchets, hoes, chisels and spoon excavators (caries removal)

Answer 6

A series

Question 7

Instruments used for the placement of restorative materials, including amalgam condensers and plastic instruments (not made of plastic but used to manipulate plastic materials)

Answer 7

B series

Question 8

Instruments used to shape and finish restorative materials Hollenback carvers, cleoid discoids and various other carvers

Answer 8

C series

Question 9

hand instrument classification system based on size and configuration of instruments

Answer 9

black’s

Question 10

primary cutting edge of instrument can be blank or blank and is on the end of the instrument

Answer 10

monobeveled, bibeveled

Question 11

three parts of hand instrument

Answer 11

blade, shank, handle

Question 12

first digit of blacks three number formula

Answer 12

width of the blade in tenths of a millimeter

Question 13

second digit of blacks three number formula

Answer 13

length of the blade in millimeters

Question 14

third digit of blacks three number formula

Answer 14

angle of long axis of blade with the handle in degrees centigrade

Question 15

centigrade takes a 360 degree circle and turns it into blank

Answer 15

100 degrees

Question 16

first digit of blacks three number formula

Answer 16

width of the blade in tenths of a millimeter

Question 17

second digit of blacks four number formula

Answer 17

Angle of the cutting edge of the blade with the handle in degrees centigrade

Question 18

third digit of blacks four number formula

Answer 18

Length of the blade in millimeters

Question 19

fourth digit of blacks four number formula

Answer 19

Angle of the long axis of the blade with the handle in degrees centigrade

Question 20

burs are better at blank cutting than blank cutting

Answer 20

side, end

Question 21

burs cut in this direction

Answer 21

counterclockwise

Question 22

two parts of burs

Answer 22

head, shaft

Question 23

two most used burs for operative

Answer 23

pear shaped 330, long inverted cone 245

Question 24

bur with parallel sides and multipurpose cavity prep

Answer 24

straight fissure

Question 25

same basic form of straight fissure burs but has added blades to improve cutting efficiency

Answer 25

cross cut straight fissure

Question 26

numbering of cross cut straight fissure burs

Answer 26

556-560

Question 27

these burs are for developing retentive features and sides converge toward shank

Answer 27

inverted cone burs

Question 28

numbering of inverted cone burs

Answer 28

33.5-40

Question 29

burs that have sides converging toward end of bur for developing tapered walls

Answer 29

tapered fissure burs

Question 30

numbering of tapered fissure burs

Answer 30

168-171

Question 31

burs used to develop retentive features and remove caries

Answer 31

round burs

Question 32

numbering of round burs

Answer 32

1/16 - 11

Question 33

round burs are used in this handpiece

Answer 33

slow speed

Question 34

burs with a metal blank with particles added for cutting

Answer 34

diamond