Switching Between Sensitivity Pastes
Short answer. Switching sensitivity brands is reasonable when a paste has had a fair trial without helping, or when you dislike the taste or feel. Change one thing at a time, keep a short note of how your teeth feel, and see a dentist if the problem does not settle.
- Switch for a clear reason, not out of impatience.
- Change only the toothpaste, so you can tell what made the difference.
- Check the label for fluoride before you buy.
- Give the new paste a fair trial of its own.
- Mention the switch to your dental team.
When does switching make sense?
The usual reasons are simple. The first paste has had a proper trial and your teeth feel no different, you dislike the flavour or texture so much that you skip brushing, or it irritates your mouth. Wanting a different brand because of an advert is a weaker reason, and moving between pastes every few days makes it impossible to learn anything.
If your sensitivity has changed in character, for example it is now sharp, lingers for a long time or sits in one tooth, a new paste is probably not the answer. That pattern is worth a dental appointment before you spend more on the shelf.
Check the label before you buy
Sensitivity pastes differ in their active ingredients, and the packet should name them. Do not assume that a different brand means a different approach, because several products rely on similar ingredients. Reading the list also tells you whether you are really trying something new or just repeating the first paste in a new box.
Whatever you choose, look for fluoride on the label. Dental organisations commonly advise brushing twice a day with a fluoride toothpaste, and a paste that suits your teeth but lacks fluoride may leave you without that everyday protection.
- Name of the active ingredient for sensitivity
- Presence of fluoride
- Flavour, if mint bothers your mouth
- Whether the packet gives usage directions
How to make the change cleanly
There is no need to taper off. Finish brushing with the old paste or simply stop using it, then use the new one at your next brush. Keep the rest of your routine the same, including your brush, your technique and the timing of your cleaning, so the paste is the only variable.
If you use a mouth rinse, leave that as it is too. Tidy away the old tube so that nobody in the household mixes them up, and write down the date of the switch somewhere you will see it.
Judging the new paste fairly
Start a fresh trial rather than carrying over your frustration from the last one. Note how your teeth react to cold air, cold drinks and sweet food at the start, then compare in the same situations after a few weeks of regular brushing. Vague impressions are unreliable, and short notes are not.
Keep a record of anything unusual, such as a sore mouth or a change in how your gums feel. If the second paste does no better than the first, that is useful information to give your dentist, since it suggests the cause may not be one a toothpaste can reach.
Is it safe to alternate between pastes?
Using different pastes at different brushes is not usually a problem in itself, but it muddies the picture. If one helps and the other does not, you will not know which is which. For a clear answer, stick with one paste until you have decided about it.
If you have a condition, take medicines or have known allergies to ingredients such as flavourings, read the packet carefully and ask a dentist or pharmacist if you are unsure. They can point you to something suitable far faster than trial and error.
Questions readers ask
Can I mix two sensitivity pastes on the brush?
There is little reason to, and it makes it hard to tell what is helping. Use one at a time and judge it on its own.
Does a more expensive paste work better?
Price alone does not tell you much. The active ingredient, fluoride content and whether you will use it twice a day matter more.
Should I tell my dentist I have switched?
Yes. Say which pastes you have tried, for how long and what changed, because that helps them work out what is behind the sensitivity.
Talk to a professional. Persistent bleeding, pain, swelling, loose teeth or sores that do not heal need a dentist's attention, not a supplement.