Patient came to you complain from discoloration in proximal of upper first premolar the clinical examination show tooth is intact and also in radiograph no-cavitation what your decision

Patient came to you complain from discoloration in proximal of upper first premolar the clinical examination show tooth is intact and also in radiograph no-cavitation what your decision:

1. No tx.

2. Fluoride application for comprised hydroxyapatite ***-preventive measure