Whitening is the most-Googled cosmetic dental treatment — and the most misunderstood. Let us correct the record.
Myth 1: Charcoal whitens teeth
Charcoal is abrasive. It scrubs away surface stains short-term while sandblasting away protective enamel long-term, eventually making teeth look more yellow as the dentin underneath shows through.
Myth 2: Lemon juice is a 'natural' whitener
Lemon is acidic enough to dissolve enamel. The brief brightening you see is actually erosion damage.
Myth 3: Whitening damages enamel
Properly formulated dentist-supervised peroxide gels do not weaken enamel. Decades of research confirm this.
Myth 4: Results are permanent
No whitening is permanent. Coffee, tea, wine and tobacco re-stain teeth gradually. Annual touch-ups maintain results.
Myth 5: All teeth whiten the same
Yellow tones respond best, grey tones least. Tetracycline-stained teeth may need veneers instead.
Myth 6: Crowns and veneers can be whitened
They cannot. Whitening only works on natural enamel — which is why we plan shade before placing restorations.
Myth 7: Higher concentration = better
Above a certain threshold, higher concentrations cause sensitivity without faster results. Dentist-prescribed strengths are the sweet spot.