How to Stop Sensitive Teeth Pain Immediately

Theories vary, but it is widely accepted that different stimuli trigger the exposed dentin to increase flow through the dentinal tubules, causing the pulp nerve to respond with that sudden burst of pain.¹

So what are your options if you are looking to stop sensitive teeth pain immediately? In this guide, we focus specifically on solutions that are clinically proven to help, along with guidance on how to manage sensitivity in the long run.

Causes of Tooth Sensitivity

There are two key underlying causes of tooth sensitivity - enamel erosion or gum recession.²

Both are typically gradual processes. Once enamel is lost, it cannot regenerate, which is why there has been recent interest in hydroxyapatite toothpastes, as they have been found to strengthen enamel by building or rebuilding its structure through a process called remineralization.

Key factors that can result in enamel erosion and gum recession include:

• Aggressive brushing: The American Dental Association or ADA recommends “people use a soft-bristled toothbrush and apply gentle pressure, both of which may help reduce the risk of gingival injury”.³
• An acidic diet or acidic beverages: Examples include carbonated drinks, citrus fruits, wine, vinegar-based foods, and more. These temporarily soften enamel and make it more vulnerable to physical wear - which is why you shouldn’t brush your teeth immediately after consuming something acidic. Waiting 30 to 60 minutes allows for saliva to neutralize the acid.⁴
• Teeth grinding or bruxism: This is a condition where a person chronically grinds or clenches their teeth. The effect, as you can imagine, is excessive wear on both the enamel and dentin. The immense pressure generated by this habit can lead to microscopic cracks or fractures, exposing the inner layers of the tooth and causing sensitivity. People commonly grind their teeth during sleep, though it can happen during the day as well.⁵

In some instances, tooth sensitivity is not merely a sign of wear but an important indicator of a more serious, undiagnosed dental problem, such as cavities, cracked teeth, or gum disease. We cover this in greater detail in our post on why are my teeth sensitive?

Treating Tooth Sensitivity

When you experience a sudden jolt of tooth pain, your immediate priority is finding relief. 

While no at-home treatment can permanently fix the underlying problem, there are several effective options that can provide temporary comfort:

1. Switch to a toothpaste for sensitive teeth. These tend to contain the compound potassium nitrate, which is a desensitizing agent that reduces feelings of discomfort. One randomized clinical trial reported that toothpastes with “5% potassium nitrate are efficacious in instantly reducing DH [dentin hypersensitivity] after topical application and after three days of brushing.”⁶
2. Switch to a fluoride mouthwash or mouthwash formulated for sensitive teeth and gums. Some studies have found “Desensitizing mouthwash is as effective as toothpaste in reducing DH [dentin hypersensitivity] with a fair remineralization potential comparable with that of the toothpaste.”⁷
3. Switch to a soft-bristled toothbrush. As previously mentioned, aggressive brushing can wear away enamel and contribute to gum recession. Opt for a soft-bristled toothbrush, and pair it with desensitizing toothpaste. Remember to leave the desensitizing toothpaste on your teeth for a few minutes to allow the active ingredients to work before rinsing.
   

You should also steer clear of extremely hot, cold, acidic, or sugary foods and drinks. Remember, these treatments are palliative - they only address the symptom, not the underlying cause. 

When to See Your Dentist

If your sensitive teeth pain is severe, persistent, or doesn't improve with any of the above remedies, it’s crucial you see your dentist. They can accurately diagnose the cause of your sensitivity and recommend appropriate treatments, which may include any of the following:

• In-office fluoride treatments that work to strengthen tooth enamel and remineralize the tooth surface⁸
• Apply adhesives, sealants or bonding agents to cover and protect the exposed dentin layer
• Fit you with a night guard for bruxism to serve as a protective barrier between the upper and lower teeth when you sleep, preventing enamel wear
• Gum grafts for receding gums
• Root canal therapy in cases of severe nerve damage

Of course, if your dentist discovers an underlying condition like a cavity, cracked tooth, or infection, they will most likely treat that first.

It’s important you don’t neglect your teeth. With the right strategies and professional guidance, you can effectively manage and often eliminate the pain of sensitive teeth, allowing you to enjoy your favorite foods and drinks without a second thought.

Managing Tooth Sensitivity in the Long Run

The best long-term strategy for managing tooth sensitivity is to protect your enamel and gums. Which, in any case, should be the cornerstone of your daily oral health routine. 

While it may sound simple, it remains highly effective:

• Practice good oral hygiene and brush your teeth twice daily, and floss once a day
• Monitor and limit your consumption of acidic foods and drinks
• Avoid aggressively brushing your teeth
• Visit your dentist regularly
  

If you’re looking for a quick solution to sensitive teeth, then consider PerioSciences Sensitive AO ProToothpaste. It contains the maximum over-the-counter level of fluoride, nano-hydroxyapatite to support remineralizing your teeth, and potassium nitrate and allantoin to soothe sensitivity.

AO ProToothpaste for Sensitive Teeth was used in a published clinical study and patients in the study reported relief from sensitivity within 72 hours. Check out our full range of products for sensitive teeth for more options.

References

1. Davari A, Ataei E, Assarzadeh H. Dentin hypersensitivity: etiology, diagnosis and treatment; a literature review. J Dent (Shiraz). 2013 Sep;14(3):136-45. PMID: 24724135; PMCID: PMC3927677.
2. Bartlett, David, and Wilson, Nairn. Dentine hypersensitivity. The Pharmaceutical Journal.
3. Toothbrushes, ADA.
4. Polyakova M, Egiazaryan A, Doroshina V, Zaytsev A, Malashin A, Babina K, Novozhilova N. The Effect of Oral Care Foams and a Spray on Salivary pH Changes after Exposure to Acidic Beverages in Young Adults. Dent J (Basel). 2024 Apr 3;12(4):93. doi: 10.3390/dj12040093. PMID: 38668005; PMCID: PMC11049306.
5. Lal SJ, Sankari A, Weber, DDS KK. Bruxism Management. [Updated 2024 May 1]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2025 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK482466/
6. Jang JH, Oh S, Kim HJ, Kim DS. A randomized clinical trial for comparing the efficacy of desensitizing toothpastes on the relief of dentin hypersensitivity. Sci Rep. 2023 Mar 31;13(1):5271. doi: 10.1038/s41598-023-31616-6. PMID: 37002263; PMCID: PMC10066268.
7. Sharda S, Prasad KVV, Shetty PJ, Nikhil K. Effectiveness of Desensitizing Dentifrice and Mouthwash on Dentin Hypersensitivity and Tooth Remineralization. Contemp Clin Dent. 2018 Jul-Sep;9(3):415-420. doi: 10.4103/ccd.ccd_167_18. PMID: 30166837; PMCID: PMC6104384.
8. Petersson LG. The role of fluoride in the preventive management of dentin hypersensitivity and root caries. Clin Oral Investig. 2013 Mar;17 Suppl 1(Suppl 1):S63-71. doi: 10.1007/s00784-012-0916-9. Epub 2012 Dec 28. PMID: 23271217; PMCID: PMC3586140.