14/07/2025
These are visible Extrinsic stains, especially on the lower anterior teeth (incisors).These stains are yellowish-brown,heavily deposited around the gingival margins and interproximal areas.Likely Causes of These Stains:1. To***co Use (Smoking or Chewing)• Commonly causes brown to dark stains, especially on lower front teeth.2. Poor Oral Hygiene• Leads to plaque and calculus buildup which can trap stains.3. Dietary Factors• Frequent consumption of tea, coffee, or foods with strong pigments.4. Mouth Breathing or Xerostomia• Leads to dryness and faster plaque accumulation.5. Iron Supplements or Chlorhexidine RinsesThese can also cause black/brownstaining over time.