The proximal surfaces of roots that are narrower on the lingual than on the facial surface are more readily approached from the lingual aspect because there is more proximal space there for the adaptation of instruments.

Question

Quizplus · Accepted Answer

The statement correctly identifies a characteristic of the proximal surfaces of roots that are narrower on the lingual than on the facial surface, and the reason accurately explains why these surfaces are more accessible from the lingual aspect for instrument adaptation. This is due to the anatomical configuration providing more space on the lingual side for the procedure.

The Proximal Surfaces of Roots That Are Narrower on the Lingual