Cavity Nomenclature

Question 1

lingual wall

Answer 1

cavity surface which is bounded by the cavosurface angle and the cavity floor

Question 2

Occlusal/pulpal floor

Answer 2

the surface which is parallel to the occlusal plane and overlies the pulp

Question 3

pulpal axial wall

Answer 3

a cavity surface that is parallel to the long axis of the tooth

Question 4

gingival floor

Answer 4

a cavity surface in an approximate cavity which is appropriately parallel to the occlusal plane and is bounded externally by the gingival margin

Question 5

cavosurface margin angle

Answer 5

angle formed at any point, on the junction of a preparation with the unprepared surface of the tooth

should be approx. 90 degrees in amalgam (60-120 clinically acceptable)

Question 6

proximal wall

Answer 6

a cavity surface orientated towards the midline or facing away from the midline

Question 7

isthmus

Answer 7

the least wide part of the occlusal key, cut in a proximo-occlusal preparation as a retentive form

Question 8

buccal wall

Answer 8

a cavity surface which is bounded by the cavosurface angle and the cavity floor