Why Is My Tooth Sensitive to Hot and Cold?

sensitive tooth

The more you want to ignore a sensitive tooth, the more it will ruin your days. 

It’s common for many people to experience sensitivity, which often activates by hot or cold foods. Have you noticed a sudden sharp pain when you drink your coffee in the morning or when you simply breathe cold air?

If so, then it’s probably time to deal with it and not wait any longer to get it treated because if you’re just dealing with one spot, it could indicate a bigger issue going on with your oral health.

And when an issue like this escalates, it can quickly become severe and expensive. In the words of Benjamin Franklin, “an ounce of prevention is worth a pound of cure,” don’t you think?

In this article, we have gathered some helpful information about oral sensitivity that you should know. Keep reading to find out more.

What Causes Your Sensitive Tooth?

A sensitive tooth can originate from different habits like overly aggressive tooth cleaning, a stiff-bristled brush, or an excessively abrasive toothpaste that can erode tooth enamel away over time, revealing the tooth’s inner layer dentin, which results in sensitive teeth. 

Acid reflux, bulimia, or another illness that causes stomach acid to enter the mouth can also damage your tooth enamel. It could also be caused by consuming too many acidic foods and beverages.

You should also keep in mind that grinding or clenching your teeth, as well as recent tooth whitening treatments, can create nerve discomfort – especially in localized areas if you have an incorrect bite. 

And if you have periodontal disease and your gums have receded due to an infection in one location, the exposed root might be just as sensitive to hot and cold.

How to Solve Tooth Sensitivity

Many people believe that you should go to the dentist only when it is a matter of life or death.

But regular visits to your Tijuana dentist are just as vital as doctor visits, especially if you’re experiencing toothaches after eating cold foods or beverages regularly.

You can still try over-the-counter dental remedies if your sensitive tooth is minor.

Select toothpaste that is particularly formulated for sensitive teeth. These toothpaste tubes will not have any irritating components and may have desensitizing chemicals that help prevent pain from reaching the tooth’s nerve.

When it comes to mouthwash, alcohol-free mouthwash is preferable because it is less irritating to sensitive teeth. Brushing more softly and with softer toothbrushes can also help.

For these things to be effective in treating your sensitive tooth, you should turn them into a habit. Within a week, you should notice a difference. If non-prescription toothpaste and mouthwash don’t work, talk to your Tijuana dentist about prescription toothpaste and mouthwash. 

They can also use an in-office fluoride gel or prescription-grade desensitizing medications. These can assist in safeguarding your teeth by strengthening the enamel.

5 Other Reasons Why You Might Have Sensitivity 

These are some other things you should have in mind:

Cracked Tooth

It’s possible that a cracked tooth isn’t noticeable to the naked eye. It probably won’t show up on X-rays, making a diagnosis difficult. Intense pain when biting down is a common indicator of a broken tooth, although it goes away once the bite is released. 

A new filling or crown is excellent to heal cracks surrounding fillings, but if the crack extends into the tooth’s pulp, you may require a root canal treatment before you get a crown in place. A crack that extends past the gum line and into the tooth’s root will eventually require treatment.

Tooth Decay

If you have a problem with just one tooth, in particular, you could likely be dealing with decay. You should visit the dentist to get a proper examination and take some X-rays to see if that’s the source of the problem.

With decay, acids created by germs that have built up against the tooth’s enamel may eventually disintegrate it, exposing the dentin layer beneath. It will cause temperature sensitivity and pain when biting down because dentin has many tiny nerve endings. 

You should be pain-free once your dentist removes the decay and replaces the tooth with either an amalgam or a tooth-colored filling. 

Loose Dental Filling

Unfortunately, fillings may not last indefinitely, and if they break or become loose, you may experience sensitivity as bacteria enter the tooth, causing more decay. 

The good news is, visiting a Tijuana dentist to get a new filling or crown can quickly solve this issue.


When the pulp of your tooth, which contains many nerves and blood vessels, becomes infected, it becomes an abscessed tooth. Fever, prolonged pain, and face swelling are all possible symptoms. 

The root tip usually has a pus-filled swelling that drains frequently and leaves an unpleasant taste in your mouth. To treat an abscessed tooth, you will require a root canal treatment.

Treatments Done Recently

Did you visit the dental office recently? The nerves within the pulp tissue might have inflammation during dental operations, such as eliminating extensive decay or preparing a tooth for a crown.

This can give you sensitivity to hot and cold, although this usually goes away after a week or two. It’s crucial to pay a visit to your dentist as soon as possible if you have one or more sensitive teeth. 

Remember that early detection and treatment can prevent minor issues from progressing to more significant dental difficulties or tooth loss.

The Bottom Line

In some instances, leaving things on the back burner is not the best thing to do. And even more when it comes to any parts of your health. Your teeth usually give you signs of more severe issues, and sensitivity is one of them.

Try to change your hygiene routine with special toothpaste for sensitivity and visit your dentist as soon as possible to find out what could be causing you a sensitive tooth. Prevention is key to avoid future health problems and expenses.

You don’t have a dentist yet? Check out Trust Dental Care. We have a wide range of services and specialists to take proper care of your smile. Give us a call or fill out the contact form on the website to book your appointment.

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