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Dentist Disaster

Toothpaste

Sensodyne Rapid Relief toothpaste

By Sensodyne

A sensitivity toothpaste marketed for fast relief. The Oral Health Foundation notes that sensitive toothpastes work by blocking tiny channels in the dentine and need continued use.

Where to buy

Opens Sensodyne Rapid Relief (Sensodyne UK) in a new tab. Prices and availability change, so check before you buy. Some of our links may be affiliate links. Affiliate disclosure.

Key features

  • Sensodyne states it is clinically proven to relieve sensitivity in 60 seconds
  • Designed for twice-daily brushing for ongoing protection
  • Sensodyne says it also helps prevent staining
  • Also available in a whitening version

Features as described by the manufacturer, checked September 2026. We haven’t independently tested this product.

Can be useful for

A product can support daily care but can’t treat a dental problem on its own. See a dentist if symptoms persist.

Choosing toothpaste

  • Check the fluoride level (ppm) on the pack – at least 1,350ppm for adults.
  • For children: a smear for under-3s and a pea-sized amount for ages 3 to 6.
  • Sensitivity toothpastes need continued use to keep working.
  • After brushing, spit out but don't rinse.
  • See a dentist if sensitivity is severe, lasts weeks or affects one tooth.

Read our full buying guide for toothpaste

Sources we used

Checked September 2026. Guidance changes, so always follow the advice of your own dental team. About our sources.