The bur should be tilted lingually when preparing the occlusal surface of class II cavity on a mandibular first premolar in order to: I. Remove unsupported enamel II. Prevent encroachment on the buccal pulp horn III. Prevent encroachment on the lingual pulp horn IV. Maintain dentinal support of the lingual cusp A. I and II B. I and III C. II and IV D. III and IV E. IV only

The bur should be tilted lingually when preparing the occlusal surface of class II cavity on a  mandibular first premolar in order to:
I. Remove unsupported enamel
II. Prevent encroachment on the buccal pulp horn
III. Prevent encroachment on the lingual pulp horn
IV. Maintain dentinal support of the lingual cusp
A. I and II
B. I and III
C. II and IV
D. III and IV
E. IV only
by

1 Answer

Answer :

C. II and IV
by

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