A bright, white smile can dramatically boost your confidence. Teeth whitening is one of the most popular cosmetic dental treatments — but there are several important things to understand before you begin.
What Causes Tooth Discolouration?
Teeth can become stained or discoloured for several reasons:
- Extrinsic staining: Coffee, tea, red wine, tobacco, and certain foods leave surface stains on enamel.
- Intrinsic staining: Certain antibiotics (like tetracycline), excess fluoride, or trauma can cause internal discolouration within the tooth structure.
- Ageing: As we age, the outer enamel layer thins, allowing the naturally yellow dentin beneath to show through.
Professional Whitening vs. Over-the-Counter Products
Over-the-counter whitening strips and toothpastes can mildly improve surface staining, but professional whitening performed by a dentist offers:
- Higher concentration of whitening agents for more dramatic results
- Customised trays for even, controlled application
- Supervised treatment to protect gums and avoid sensitivity
- Faster, longer-lasting results
How Does Professional Teeth Whitening Work?
Professional bleaching uses hydrogen peroxide or carbamide peroxide gel to penetrate the enamel and break up stain molecules inside the tooth. The process is safe when performed or supervised by a dental professional.
Who Is a Good Candidate?
Teeth whitening works best on natural teeth with yellowish discolouration. It is less effective on:
- Grey or brown stains from tetracycline
- Dental restorations like crowns, veneers, or fillings (which do not whiten)
- Severe intrinsic staining
A dental examination is essential before whitening to ensure your teeth and gums are healthy.
How Long Do Results Last?
Results typically last 1 to 3 years, depending on your diet and lifestyle habits. Avoiding staining foods and drinks, not smoking, and maintaining good oral hygiene will extend the results.
Common Side Effects
Tooth sensitivity and mild gum irritation are the most common side effects and usually resolve within 24–48 hours after treatment. Using a desensitising toothpaste before and after treatment can help.
Tips to Maintain Your White Smile
- Rinse your mouth with water after consuming staining drinks
- Use a straw for coffee, tea, and juices
- Brush twice daily with a whitening toothpaste (as maintenance)
- Schedule a professional clean every six months
"Your smile is your greatest asset. A professional whitening treatment can transform it safely and effectively."
Speak to our team at Dr. Chakraborty's Dental Clinic to find out if teeth whitening is right for you.