Upper first premolar with MO cavity; what is important about the application of the matrix band (the  question has also shown too as ….What is complicated by):
A. The mesial concavity of the root surface
B. Small lingual pulp
C. High buccal pulp horn
D. High lingual pulp horn
E. Concavity of distal root surface

1 Answer

Answer :

A. The mesial concavity of the root surface

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