In the preparation of Premolar class I cavity what is the best way of getting retention, A. Slightly done undercut of the mesial and distal walls B. Slightly done undercut of the buccal and lingual walls C. The convergence of the cavity walls

In the preparation of Premolar class I cavity what is the best way of getting retention,
A. Slightly done undercut of the mesial and distal walls
B. Slightly done undercut of the buccal and lingual walls
C. The convergence of the cavity walls
by

1 Answer

Answer :

B. Slightly done undercut of the buccal and lingual wall
by

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