Tooth sensitivity can be a real issue for so many of our patients. In this blog, I’ll explain what it is and why it happens, plus what you can do to alleviate the pain!
Why it happens – and what you can do about it
If you’ve ever felt a sudden sharp twinge when enjoying a hot coffee, cold drink, or even something sweet, you’re not alone. Tooth sensitivity is one of the most common dental complaints we see at tooth, and the good news is that it’s usually very manageable once the cause is identified.
As Principal Dentist, I always encourage patients not to ignore sensitivity. While it’s often minor, it can sometimes be an early warning sign that your teeth need attention, so never leave it and if you are worried please just click one of the buttons below to get in touch so we can take a look.
Sensitivity from hot or cold food and drinks is common - but it can be treated
What causes tooth sensitivity?
Tooth sensitivity occurs when the inner layer of the tooth (dentine) becomes exposed. Dentine contains tiny channels that lead directly to the nerve, which is why temperature changes can feel so uncomfortable.
Common causes include:
Worn enamel: Enamel is the protective outer layer of your teeth. Over time, it can wear down due to:
Brushing too hard
Using abrasive toothpaste
Acidic foods and drinks
When enamel thins, sensitivity often follows.
Gum recession: As gums recede, the roots of the teeth become exposed. Tooth roots don’t have the same enamel protection, making them particularly sensitive to cold and touch.
Tooth grinding (bruxism): Clenching or grinding your teeth, which often happens at night, can gradually wear down enamel and increase sensitivity.
Dental problems: Sensitivity can sometimes indicate:
Tooth decay
Cracked teeth
Failing fillings
Gum disease
This is why persistent sensitivity should always be checked professionally.
Is tooth sensitivity serious?
In many cases, sensitivity is mild and temporary. However, if it:
Lasts more than a few weeks
Is getting worse
Occurs in one specific tooth
Is accompanied by pain or swelling
…then it’s important to book a dental examination. Early diagnosis often prevents more complex treatment later on.
How can tooth sensitivity be treated?
Treatment depends on the cause, and you should always get a Dentist’s opinion based on your individual circumstances, but common solutions include:
Desensitising toothpaste (e.g. Sensodyne): These work by blocking the pathways to the tooth nerve. With regular use, many patients notice improvement within a few weeks.
Improved brushing technique: Gentle brushing with a soft-bristled toothbrush can make a big difference. We’re always happy to demonstrate the correct technique during your visit and we sell a great soft brush in reception too for just a few pounds.
Fluoride treatments: Professional fluoride applications help strengthen enamel and reduce sensitivity.
Gum treatment: If gum disease or recession is contributing, targeted periodontal care can protect exposed areas and improve comfort.
Night guards for grinding: Custom-made night guards protect teeth from grinding and reduce enamel wear. They are incredibly effective and only cost £180 at time of writing for a regular nightguard.
How do I prevent tooth sensitivity long-term
At tooth, we know that prevention is always better than cure! recommend:
Brushing twice daily with a soft toothbrush
Avoiding overly acidic foods and drinks
Wearing a night guard if you grind your teeth
Attending regular dental check-ups
At tooth, we focus on early detection and gentle, preventative care, helping you stay comfortable and confident in your smile.
When should you see us?
If sensitivity is affecting your daily life or causing concern, don’t wait. A simple check-up can identify the cause and put your mind at ease.
If you’re experiencing tooth sensitivity or would like advice tailored to you, our team at tooth in Waterloo is always happy to help. Just click any of the buttons below and we’re hear, ready to help.
Dr. Anna x