The colour of the teeth can be altered by food, beverages, lifestyles and even age. But there are just as many ways to undo teeth stains and reduce the tendency of stain adhering to to teeth.

However, a mesmerizing white smile is the desire of everyone. There are many reasons why the teeth may darken or change colour. Some of these reasons are inevitable, such as ageing, usage and the roughness of the chewing surfaces. That’s why it’s important to discuss any plans you have for whitening your teeth with your dentist. He or she will be able to tell you if your tooth discolouration is simply staining caused by lifestyle factors — such as drinking too much coffee — or maybe more a matter of dental health.

Although whitening is usually done for cosmetic reasons, your dentist can guide you on what options you have for treating the type of staining you have. The good news is that in many cases reversing teeth stains is within our reach. That makes pursuing a healthy white smile worthwhile.

Causes of tooth discoloration

  • Foods/drinks: Coffee, tea, colas, wines, and some starchy foods such as pasta or potatoes, can create conditions that cause staining.
  • Tobacco use: Smoking or chewing tobacco can stain teeth.
  • Poor dental hygiene: Forgetting to brush and floss your teeth can cause plaque and food stains to build up. Skipping professional dental cleanings can also allow stains to start.
  • Disease: Diseases that prevent normal development of tooth enamel (the white exterior of your teeth) and dentin (the more porous “yellower” core under enamel) can lead to tooth discoloration. Some infections in pregnant mothers can affect enamel development in your baby and discolor their teeth.
  • Medications: It has long been known that certain drugs discolor teeth in developing children. The antibiotics tetracycline and doxycycline can affect enamel formation in children under the age of 8. Mouth rinses and washes containing chlorhexidine and cetylpyridinium chloride can also stain teeth. Antihistamines (like Benadryl®), antipsychotic drugs and antihypertensive medications also can cause teeth discoloration.
  • Dental materials: Some amalgam restorations, especially silver sulfide-containing materials, can give a gray-black cast to your teeth.
  • Aging: As you age, the outer layer of enamel on your teeth gets worn away exposing the yellow dentin. Your tooth dentin also grows as you age, which decreases the size of the pulp. The translucency of the tooth reduces, making it look darker.
  • Genetics: Thicker and whiter enamel runs in some families.
  • Environment: During tooth formation, too much fluoride either from environmental sources (high fluoride levels in water) or from excessive use of (fluoride applications, rinses, toothpaste) can cause fluorosis, which look like white spots on teeth.
  • Trauma: During sports, kids can get hit in the mouth. If they are younger than 8, the damage can disturb enamel formation. Trauma can also discolor adult teeth when a sports injury or other impact causes blood flow to decrease to the tooth or the nerve to die.
  • Tooth decay
  • Dental fluorosis
  • Fruits

Types of tooth discoloration

There are two kinds of stains that affect the results from the accumulation of tartar which in turn is from food over time, however, internal stains are integrated into the tooth substance itself so it can not be removed by mere professional cleaning.
External stains can affect your breath and can cause gum disease which could lead to series of other things.
External stains are removed by scaling and polishing while internal stains are removed by tooth whitening.
Give your mouth a treat and improve your personality.

Treatment options

It’s also important to understand that dental restorations, including bonding, veneers, crowns, bridges, dentures or implants cannot be whitened because they are made of manmade materials, usually porcelain. Only natural enamel teeth can be whitened, and only then if the cause is something your dentist considers reversible. Depending on the cause of discoloration, your dentist may suggest one or more of the following options.

  • Avoiding stain-causing foods/beverages. Our habits can be culprits in teeth staining.
  • Applying over-the-counter whiteners available in stick-on strips or tooth-shaped trays.
  • Cleaning your teeth daily using proper tooth brushing and flossing techniques. (Though you should be practicing good dental hygiene anyway, upping your game can improve your teeth’s appearance if your habits usually aren’t what they should be.)
  • Professional whitening is performed in-office by a dentist who uses professional whitening products and procedures to speed the whitening process. Your dentist will apply a hydrogen peroxide solution. Some products may require heat with a special light to accelerate the bleaching process. Other professionally available products will have a higher concentration of whitener, sometimes with desensitizer, and some type of custom tray for better whitener adhesion. The procedure is safe in the hands of a skilled dentist.
  • Dental bonding is a procedure in which your dentist applies a white resin to your tooth and hardens it with a special curing light. The light ‘bonds’ the resin to the tooth to improve the color and structure of your smile.
  • Dental crowns are placed to protect, cover and restore damaged teeth and can whiten your smile. Your dentist can customize a crown’s color to match your other teeth.
  • Dental veneers are custom-made porcelain ‘shells’ designed to cover the front of the tooth to improve the color and shape of your smile. They are fragile: about the size and thickness of a false fingernail. If you choose veneers, your dentist will caution you to avoid biting into hard foods with your front teeth to avoid breakage.


Taking care of your teeth is all about honing healthy habits. With just a few simple lifestyle changes, you may be able to prevent tooth discoloration. If you’re a coffee drinker, consider cutting back or finding an alternative beverage. And if you smoke, seek help to quit as smoking also affects much more than your dental health. Up your dental hygiene game by brushing and flossing daily and get regular checks and cleanings every six months. If your teeth appear to be an abnormal color that lasts, despite your best oral hygiene efforts, and if other symptoms are also present, make an appointment to see your dentist.

  1. Brush your teeth for two minutesfirst when you wake up and again before bed.
  2. Pick the right paste to be safe
  3. Floss between your teeth daily.
  4. Limit food and drinks that stain teeth, such as cola, coffee, tea and red wine.
  5. Keep a clean reusable straw handy to sip liquids and prevent staining your front teeth.
  6. Drink water and rinse your mouth after drinks that contain acid and/or may stain, like juice, lemonade, coffee or red wine.
  7. Quit smoking to keep tobacco stains away.

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