Why Are My Teeth Sensitive to Hot and Cold?

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Why Are My Teeth Sensitive to Hot and Cold?
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Tooth sensitivity is often due to worn enamel, gum recession, or decay. Gentle care and regular dental visits can help.

Tooth sensitivity
23 August 2024

Have you ever had that sharp, sudden pain when you sip on a hot cup or bite into an ice cream? If so, you’re not alone. Tooth sensitivity is a common issue and can be quite a nuisance. But what exactly causes this sensitivity to hot and cold, and what can you do about it? Let’s dive into the reasons behind those twinges and how to keep your teeth comfortable.

The Culprits Behind Sensitive Teeth

Tooth sensitivity often occurs when the protective layers of your teeth start to wear down. Here’s a closer look at some of the usual suspects:

Worn Enamel

Enamel is the hard outer layer that shields your teeth. Over time, it can wear down due to aggressive brushing, acidic foods and drinks, or grinding your teeth (bruxism). When the enamel thins out, it exposes the underlying dentin, which is more sensitive and directly linked to the nerves in your teeth.

Gum Recession

Our gums are like a protective blanket for the roots of your teeth. The roots become exposed when gums recede, usually due to gum disease or harsh brushing. Unlike the rest of your tooth, the roots are not covered by enamel, making them highly sensitive to temperature changes.

Pro Tip: Make dental visits a routine part of life by scheduling them around the same time each year, just after their birthday or before school starts.

Tooth Decay and Damage

Cavities, cracked teeth, or worn fillings can also lead to sensitivity. These issues can create tiny openings that allow hot or cold temperatures to reach the nerves inside your tooth, causing discomfort. 

The Role of Your Dental Hygiene

Your daily dental routine plays a huge role in managing tooth sensitivity. If you’re experiencing discomfort, consider the following:

Gentle Brushing

A soft-bristled toothbrush and gentle strokes can help protect your enamel and gums. Avoid brushing immediately after consuming acidic foods or drinks, as this can further erode your enamel.

Desensitising Toothpaste

Switching to a toothpaste designed for sensitive teeth can make a big difference. These toothpastes block the pathways that lead to the nerves in your teeth, reducing your sensitivity over time.  

Regular Dental Check-ups

Regular visits to the dentist help catch issues like tooth decay, gum disease, and other conditions early, preventing them from worsening and leading to sensitivity.

When to See Your Dentist

If you’ve tried managing your sensitivity at home but are still struggling with discomfort, it’s time to visit your dentist. Persistent sensitivity could indicate a more severe issue, such as a cracked tooth or deep decay, that needs professional treatment.
 
Your dentist can offer solutions like fluoride treatments and dental sealants or even discuss options like crowns or root canals. They’ll also help identify habits or conditions contributing to your sensitivity and guide you on the best action.

Final Thoughts

Caring for Your Sensitive Teeth
Tooth sensitivity is a common problem but doesn’t have to be permanent. By understanding the causes and taking steps to protect your teeth, you can enjoy your favourite hot and cold treats without the pain. Remember, your dentist is your best ally in keeping your smile healthy and comfortable. Don’t hesitate to seek their advice if your sensitivity gives you grief.

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