Food and Beverage
Certain foods and drinks can stain or discolor teeth. Things like coffee, tea, red wine, spices like curry, and foods that contain a lot of natural and artificial colors can cause stains on teeth.
Use of tobacco
Nicotine and tar in cigarettes can adhere to tooth enamel, causing yellow or brown stains.
Poor oral hygiene
Not brushing regularly or not flossing can cause plaque and bacteria to build up on your teeth, leading to tooth discoloration.
Use of drugs
Certain medications such as antibiotics, blood pressure medications, or drugs containing tetracycline can cause tooth discoloration. In addition, the use of birth control pills or other medications can also affect tooth color.
Aging
As we age, the natural enamel layer can thin, exposing the dentin layer underneath the enamel and causing teeth to become discolored.
Acidity and tooth enamel erosion
Acid reflux can completely erode tooth enamel, exposing the dentin and causing discoloration. People who regularly experience acid reflux should be especially careful about their oral health.
Too much fluoride
Overuse of fluoride products can lead to fluorosis, which causes white spots and enamel damage that makes teeth more susceptible to yellowing.
Environmental pollution
Pollutants, especially airborne toxins like dioxins, can deposit on teeth, forming a yellow-brown layer that discolors teeth.
Nighttime habits and dark chocolate
Even small habits, like eating dark chocolate before bed, can contribute to yellowing.