D1-Exam 2 Quiz 4

Question 1

Max Ant Class I outline form

Answer 1

Outline form in general is a rounded triangle, follows the pit

Question 2

Maxillary molars distal pit

Answer 2

Distal pit, preserve oblique and distal marginal ridges

Question 3

Maxillary molar lingual pit

Answer 3

tubular/eliptical

Question 4

Max Molars O-L

Answer 4

include distal and lingual pits in one prep

Question 5

width of max molar preps OL

Answer 5

thin, just one bur width and 1mm

Question 6

Error preference for max molar OL

Answer 6

shifted to central/mesial b/c do not want to weaken the small d-l cusp

Question 7

Disto occlusal wall of max molar OL

Answer 7

slightly divergent while the remainder of the distal wall is convergent

Question 8

Vision for MAx molar OL

Answer 8

indirect

Question 9

bur for distal pit on max molar OL

Answer 9

245

Question 10

Long axis of bur should be _____ with the ____ of the tooth or with a slight _____ inclination

Answer 10

parallel; long axis; distal

Question 11

axial wall depth of __mm from lingual surfaces

Answer 11

1mm

Question 12

mesial and distal walls for max molar OL

Answer 12

convergent

Question 13

______ axiopulpa line angle

Answer 13

Rounded

Question 14

depth from occlusal and at location of axial pulpal line angle

Answer 14

1.5mm

Question 15

external depth (from axial wall

Answer 15

1.0mm minimum

Question 16

Always try and conserve the ___

Answer 16

oblique ridge

Question 17

Default for Max molar OL

Answer 17

Two distinct preps; one mesial and one distal pit

Question 18

minimum oblique ridge width between Mesial and distal pits

Answer 18

1mm

Question 19

Mandibular molars buccal pit shape determined

Answer 19

carious lesion shape

Question 20

Mandibular OB

Answer 20

Occluso-Buccal due to groove between them; the step from O to B is not as prominent as the OL prep on a maxillary molar

Question 21

Walls of buccal extensions of OB

Answer 21

parallel to slightly converging

Question 22

When you have an internal line angle, do what??

Answer 22

Round or blunt it

Question 23

Class 1 Outline form determinants

Answer 23

Horizontal spread of caries NOT depth

Question 24

Maxillary molars mesial pit/central pit

Answer 24

modified butterfly; conserve mesial ridge (incl all central developmental groove, 1/2 of B)

Question 25

Orientation of Bur for Max ant class 1 prep

Answer 25

perpendicular to long axis/lingual surface

Question 26

Max molars distal pit Class 1 prep preserve what?

Answer 26

preserve oblique marginal ridges

Question 27

Max molars lingual pit class 1 prep (outline form and M and D walls

Answer 27

outline form is elliptical, M and D walls are parallel to each other or slightly converging

Question 28

Max Molar OL Class 1; why connect and which pits? Respect what?

Answer 28

D and L pits; connect b/c groove between them is involved; hence the lingual fissure connects w/ D-oblique fissure and distal pit on O surface-RESPECT the Oblique ridge

Question 29

Max molar Class 1 OL should be cut more at the expense of _____ (2) and to preserve ______ (1)

Answer 29

oblique ridge and buccal cusp | fissure

Question 30

MD isthmus width of lingual extension on Max molar Class 1 OL should be _____ except when removing carious or undermined enamel

Answer 30

1mm

Question 31

Max Molar Class 1 OL M and B walls and the DO wall and D

Answer 31

M and B Converge occlusal; Do is slight divergent while D is convergent

Question 32

Largest occlusal table

Answer 32

Max 1st molar

Question 33

Max Molar OL prep in mouth (how to work on it/where + burr)

Answer 33

indirect vision w/ 245 into distal pit

Question 34

Axial wall depth of ___ from L surface

Answer 34

1.0mm

Question 35

Dimensions of L pit prep

Answer 35

1.5 mm depth by 1.0 mm width (axial wall) MINIMUMS

Question 36

minimum oblique ridge width for OL class 1

Answer 36

1.0 mm