Some degree of tooth sensitivity following whitening is completely normal and is one of the most common side effects of the treatment. Most patients who undergo professional whitening experience at least mild sensitivity.
What's Normal
Sensitivity to cold (air, cold drinks, cold food) that starts during or shortly after the whitening session and fades within 24-72 hours is normal. Mild gum sensitivity where the tray may have contacted the tissue is also normal and resolves quickly. The pain should be manageable with over-the-counter painkillers and doesn't interfere significantly with daily life.
What's Not Normal
Severe, sharp pain that doesn't settle when the cold source is removed is not normal. Pain that lasts more than a week after treatment is not normal. Pain that worsens rather than improves over the days following treatment is not normal. Gums that become significantly swollen, blistered, or ulcerated from tray contact is not normal and requires treatment.
Managing Whitening Sensitivity
Use a desensitising toothpaste containing potassium nitrate or stannous fluoride before and during treatment. Avoid very cold or hot food and drinks for the first 48 hours. If using at-home trays, reduce the wear time if sensitivity is intense. We can prescribe a high-fluoride gel or desensitising product to use alongside your whitening treatment for more significant cases.
If your sensitivity is severe or lasts beyond a week, contact us — there may be an issue with the tray fit, an existing crack in a tooth, or gum recession that's making the sensitivity worse than it should be.
If any of this sounds familiar, book an assessment with us. The sooner we take a look, the simpler the treatment is likely to be. Call the practice on 01323 723757 or book online at www.meadsdental.com.