Instrument used to plane buccoproximal and linguoproximal walls in class II cavity is:: (A) Enamel hatchet, (B) Bibeveled hatchet, (C) Chisel, (D) Single sided chisel
Answer is A. With the enamel hatchet or the bin-angle chisel or both, the dentist can cleave away any remaining undermined proximal enamel, establishing the proper direction to the mesiolingual and mesiofacial walls.