Lumen Dental
All tips

Treatments · 5 min read

Teeth whitening: what actually works

From toothpastes to chairside gels: what each option can and cannot do, and who should skip it.

Dr. Elena MarshSep 18, 2026

Tooth colour is partly genetic and partly lifestyle. Coffee, tea and red wine stain the surface; age darkens the dentine underneath.

Whitening toothpaste

Gently polishes surface stains. Useful for maintenance, but it will not change your natural shade.

Professional whitening

Medical-grade gels penetrate enamel and can lighten teeth by several shades in one visit, with gums protected throughout.

Who should wait

If you have untreated cavities, gum disease or very sensitive teeth, treat those first. Pregnant patients are advised to postpone.

Questions about your own teeth? Let’s talk in person.

Book a check-up