Class I with extension

Question 1

have to have angulation on 1st premolar because

Answer 1

the pulp of the tooth extends with the buccal cusp

Question 2

class I with extension also referred to as

Answer 2

compound class I cavity

Question 3

which tooth is class I extension common in

Answer 3

molars

Question 4

when occlusal caries extend to a lingual and or buccal fissure; __ fissure in a maxillary molar and a __ fissure in the mandibular molar

Answer 4

lingual fissure in maxillary molar

buccal fissure in a mandibular molar

Question 5

in a maxillary class I extension, the ___ is not crossed

Answer 5

oblique ridge

Question 6

class I with extension occlusal portion follows similar to class I prep except

Answer 6

the pulpal flood assumes an occlusal elevation following the contour of the occlusal surface and DEJ, which rises occlusally

Question 7

class I with extension occlusal portion follows similar to class I prep except

Answer 7

once bur is parallel with cusp tip location, drop a box bucally to include the groove on the buccal/lingual surface with 245 bur

Question 8

in a class I with extension, which bur to drop the box

Answer 8

245

Question 9

class I with extension has two approaches with the bur for initial entry

Answer 9

1. ) parallel to the long axis with tip of 245 at the gingival end of the fissure
2. ) perpendicular to the long axis of the tooth

Question 10

extension portion; an elongated box with mesial ad distal walls

Answer 10

mesial and distal walls converge occlusal

Question 11

extension portion an elongated box with axial wall

Answer 11

convex - curved following buccal or lingual surface

Question 12

extension portion an elongated box axial depth

Answer 12

1.0-1.2mm

Question 13

extension portion an elongated box gingival floor

Answer 13

is flat and terminates at the end of the groove

Question 14

extension portion an elongated box, axiopulpal line angle is

Answer 14

rounded