At 7Dental, we’re here to clear up the confusion and help you make informed decisions about whitening your teeth safely and effectively.
Why Do Teeth Stain?
Understanding what causes staining can help you choose the right whitening solution.
Common causes include:
- Coffee, tea, wine, and tobacco use
- Aging (enamel wears down over time)
- Certain medications or medical conditions
- Poor oral hygiene and plaque buildup
Surface stains respond well to whitening treatments, while deep, internal stains may require other cosmetic options like veneers.
Whitening That Works (and Why)
1. In-Office Professional Whitening
- Fastest and most effective method
- Performed by dental professionals
- Uses high-concentration peroxide safely
- Can lighten your teeth up to 8 shades in one visit
Best for: Patients seeking quick, dramatic, and long-lasting results.
2. Custom Take-Home Whitening Trays
- Furthermore, provided by your dentist
- Custom-fitted trays ensure even application
- Results appear gradually over 1–2 weeks
Best for: Those who prefer the comfort of home but want professional-level results.
3. Whitening Toothpaste & Drugstore Strips
- Easily accessible and affordable
- May help with mild, surface-level stains
- Results are modest and take time
- Risk of enamel damage if overused
Best for: Maintenance after professional treatment or treating mild discoloration.
Whitening Trends to Avoid
Some popular DIY whitening trends can actually do more harm than good.
Avoid:
- For example, lemon juice or baking soda: These are acidic and abrasive, wearing down enamel.
- Charcoal toothpaste: Not ADA-approved and may damage tooth surfaces.
- Unregulated online kits: Unknown ingredients and no professional oversight.
Always consult your dentist before starting any whitening product or trend.
Is Teeth Whitening Safe?
Yes, when supervised by a professional. Temporary sensitivity is the most common side effect and can usually be managed with desensitizing toothpaste or shorter treatment sessions.
For more information, read the Canadian Dental Association’s guide to safe and effective teeth whitening.
How Long Do Whitening Results Last?
With good oral hygiene and regular dental visits, your whiter smile can last 12–24 months. Avoiding dark beverages and smoking helps preserve your results even longer.
Brighten Your Smile with 7Dental
At 7Dental, we offer safe, effective teeth whitening, both in-office and at-home options customized for your smile. Let us help you feel more confident with a brighter, healthier look.