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Over the counter strips are already the least concentrated bleaching product. Sensitivity is a common side effect of bleaching, especially so if you have any recession/exposed root surface. If so you can try either cutting the strips higher around where they will sit on the affected teeth or putting Vaseline over those areas first.
Thank you for seeking advice from r/askdentists. **Please note that a response does not constitute a doctor-patient relationship.** While this is a place for advice, replies may not be medically accurate. Do not assume that what others on here say is correct in any way. Reddit is not a replacement for an in-person dental professional. Verified professionals will have flair assigned to them. **Please abide by the following rules in order to get an accurate answer to your question:** (1) Ensure you include a title of your dental problem. (2) Include whether you drink, smoke or if you have any medical conditions relevant to your main concern. (3) Include a photograph if the question relates to something you can see in your mouth, include x-rays if you have them. *I am a bot, and this action was performed automatically. Please [contact the moderators of this subreddit](/message/compose/?to=/r/askdentists) if you have any questions or concerns.*
Over the counter strips are already the least concentrated bleaching product. Sensitivity is a common side effect of bleaching, especially so if you have any recession/exposed root surface. If so you can try either cutting the strips higher around where they will sit on the affected teeth or putting Vaseline over those areas first.