Least amount of reduction For Stainless steel crown

For Stainless steel crown the tooth surface requiring least amount of reduction is ?
A. Buccal
B. Lingual
C. Occlusal
D. Proximal

Ans. (B)

Buccolingual Reduction- Reduction of the buccal and lingual surface is minimal. Natural undercuts of these surfaces assists in the retention of the stainless steel crown. However. in some cases as the first premolar it is necessary to reduce the large buccal bulge.

Review At Glance-

Tooth Preparation for Stainless Steel Crown

~ Occtus al- 1.5-2.0 mm reduction

~ Bucc;;tl & Lingual- 0.5 mm, least reduction lingually.

~ Proximal- 1-1.5 mm reduction

~ Gingival Termination- 0.5-1.0 mm into sulcus

mgival Finish Line- Feather Edge