Why is my Tooth Hurting from Hot or Cold Food or Drinks?

05 Nov 2021  |  No Comments
woman feel terrible toothache after drink cold water

If you feel pain when you drink something cold or hot, chances are, you’re suffering from tooth sensitivity. There are several common causes of tooth sensitivity and plenty of home remedies for tooth sensitivity too.

In this article, Marsfield Dental Care, the leading dental clinic in Macquarie Park, explains why you may experience tooth sensitivity to hot or cold after filling, warning signs and home remedies.

Why Does Tooth Sensitivity to Temperature Occur?

Maybe you returned home from getting a cavity filled, or maybe it’s been a while since your last dental examination. Now, you’re wondering, “Why does my tooth hurt when I drink something cold or hot?”

Tooth sensitivity to hot and cold temperatures usually indicates that the enamel around the tooth has worn down, exposing the dentin. Enamel loss may be due to:

  • Cavities
  • Tooth Decay
  • Tooth Injury
  • Tooth Grinding
  • Gum Disease
  • Harsh Dental Care Products or Forceful Brushing
  • Poor Oral Hygiene
  • Eating Acidic Food or Smoking

Tooth Sensitivity to Hot or Cold After Filling

Fillings, crowns, inlays and bonding are all dental treatments that can contribute to or cause tooth sensitivity. Sensitivity is normal for the first 24 hours or so after dental treatment, but persistent sensitivity may be a sign of something more serious, such as the filling or crown:

  • is too deep.
  • is poorly fitting.
  • has become loose.

If tooth sensitivity after a filling, crown or dental implant persists, you may need a root canal.

Home Remedies for Tooth Sensitivity

The best course of action for persistent tooth sensitivity is going to your dentist to get a diagnosis and permanent intervention! However, there are several effective home remedies for tooth sensitivity that you can rely on in the meantime. These remedies include:

  • Saltwater rinse
  • Hydrogen peroxide rinse (diluted in warm water)
  • Honey and warm water rinse
  • Turmeric rub
  • Green tea rinse
  • Capsaicin gel or mouthwash
  • Vanilla extract

In addition to proven home remedies and rinses, you can also make some diet and lifestyle changes to cut out elements causing tooth sensitivity. These include:

  • Soft drinks
  • Citrus fruits
  • Pickles
  • Cranberries
  • Tomato and tomato-based foods, like ketchup and hot sauce
  • Coffee
  • Wine

Furthermore, you can use over-the-counter dental products specially formulated to reduce tooth sensitivity. Look for toothpaste and mouthwashes that include arginine.

When to See a Dentist

If you’re experiencing tooth sensitivity to hot or cold temperatures, schedule an examination with your dentist to get to the root cause and help you feel better faster. Although tooth sensitivity is common, don’t mistake commonality for lack of severity – it could be a sign of a major problem that will worsen without intervention. It’s always better to start a treatment plan to alleviate your pain and concerns than keep using home remedies to mask a larger issue.

To schedule a dental appointment with Marsfield Dental Care in Sydney, call us on 02 9887 1961 or click the button below.


"The information in this website may be simplified in nature and does not replace professional advice. Risks and consequences may apply to any treatment. Always seek a second opinion when considering complex treatment. A referral to a specialist may be required in certain situations. Quotations can only be given after proper clinical assessment and so pricing details cannot be given over the phone."

COVID 19 Update - Oct 2021

 All our members of staff - Dentists and supporting assistants - are fully vaccinated. We are a COVID-safe practice and we are open for all general dental treatment needs and services.