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How Long After a Root Canal Can I Eat?

Wondering when you can eat after a root canal? Our article has the answer and recovery tips.

Last updated on

July 19, 2023

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How Long After a Root Canal Can I Eat?

A root canal is performed to get rid of inflammation in the innermost layer of your tooth. It’s a very common procedure that shouldn’t take your dentist any more than one hour. That said, it requires proper aftercare for speedy healing—and food is absolutely part of this equation. 

Keep reading this guide from Flossy to find out what happens during a root canal, how soon you can eat after it, and some of the ways you can speed up its healing.  

What To Eat After A Root Canal

While cold foods can provide much-needed relief for the swelling, it’s a good idea to avoid anything hot, such as coffee. You might not be able to feel the temperature and end up burning your mouth—something you’ll only feel once the anesthetic wears off. 

If you're starving after your root canal procedure, then some foods are safe to eat right after. These include soft foods that don’t require you to chew, such as yogurt, bananas, and hummus. 

What Should I Avoid Eating After a Root Canal? 

Just as soft and cold foods are beneficial right after a root canal, those hard to chew are best avoided right after the procedure. This includes hard foods, such as nuts and seeds; crunchy foods such as apples; and sticky foods, such as caramels—which can damage your temporary crown and pull out your filling. 

In addition, if your dentist placed a temporary crown on your tooth, we would avoid these types of foods until you go back for your permanent crown. While you can avoid damage by chewing on the opposite side of your mouth, there’s still the possibility of forgetting that you have a temporary crown and accidentally damaging it. 

It’s normal to feel some sensitivity in the days following your root canal procedure. For this reason, it’s a good idea to avoid either extreme temperature. Foods and beverages that are too hot or too cold can cause you to grimace in pain while you heal. So, wait until your permanent crown is in before drinking hot coffee and eating ice cream. 

How Soon Can I Eat After a Root Canal?

This should take—on average—three hours. 

Because your teeth and gums will be numb after the root canal procedure, you can increase your chances of accidentally biting yourself and causing bleeding. In addition, you won’t feel extreme temperatures, which can cause you to burn the inside of your mouth. 

For this reason, it’s a good idea to wait to eat until the numbness has subsided. In addition, it’s a good idea to eat on the side opposite to the one treated. This site shouldn’t be numb. 

Lastly, make sure to eat slowly to avoid accidentally biting yourself. 

What Is a Root Canal?

A root canal is a type of endodontic (“inside the tooth” in Greek) treatment done to drill to the innermost layer of your tooth and address the inflammation that comes from within. 

While it’s very likely that you had a cavity filled at some point, a root canal is typically not as common. 

To understand how a root canal is performed, let’s briefly go over the structure of your tooth. Essentially, your tooth is made up of three layers: Enamel, dentin, and pulp. 

The enamel is the hard outermost layer, protecting your tooth from outside elements. The middle part of the dentin contains microscopic tubes that function as an intermediary between the enamel and the pulp. 

Lastly, the pulp is the innermost part of your teeth which contains many nerve endings. It’s responsible for bringing blood and its many nutrients to your teeth. We’re most concerned with this part during a root canal. 

The pulp extends from the crown of the tooth (the visible part) to roots hidden in your gums. If this part of your tooth becomes inflamed or infected, it can lead to many problems, leading to the loss of your tooth.

Your dentist will remove the pulp from inside the tooth and carefully disinfect the surrounding area to treat the inflammation. Afterward, your tooth will be sealed with a rubber-like material and restored with a tooth-like crown. 

How Do I Make My Root Canal Heal Faster?

There is plenty you can do to make your root canal heal faster. Here are some of our top tips to follow for your root canal aftercare:

  • Don’t Smoke: While you technically can smoke after a root canal, it’s still something to avoid. That’s because the ingredients in cigarettes are well-known toxins that increase the risk of inflammation in the entire body. For this reason, smokers experience slower healing after a root canal and are much more likely to need root canals again. 
  • Practice Good Oral Hygiene: The bacteria found in plaque can interfere with the healing process of a root canal. While we may desire to skip brushing and flossing after the procedure, it’s still important to follow a regular oral hygiene routine. 
  • Be Gentle With the Temporary Filling: Although regular brushing and flossing after your root canal are important, you might want to take extra care when doing so—especially if you have a temporary crown. While gentle brushing is fine, we would avoid flossing around the temporary crown. 
  • Gargle With Salt Water: Salt has well-known antibacterial properties that can help to reduce the inflammation associated with a root canal. Gargle with warm salt water at least three times per day for the best results. 
  • Avoid Inflammation: In general, avoiding inflammation is one of the best ways to allow your body to heal—regardless of the procedure. This means avoiding stress, junk food, and alcohol. And getting plenty of rest doesn’t hurt, either!

What Happens During a Root Canal?

Millions of root canal procedures are performed every year. For this reason, there’s nothing to worry about if your dentist recommends a root canal for you. Here’s what to expect during your root canal procedure: 

1. Preparation

Your dentist will prepare the area to be treated by injecting a local anesthetic into the area. This may be uncomfortable, but the results are worth it: You won’t feel a single thing during the entire procedure. 

After the area has been numbed, your dentist will place a dental dam—a thin piece of latex—which will cover the rest of your teeth while isolating the one to be treated. 

2. Drilling to the Root

Once the area has been numbed and isolated, your dentist will begin to drill to the root of your tooth. Once a small hole has been made, the infected pulp will be cleaned out, and an antibacterial solution will be used to disinfect the newly-formed canal. 

3. Shaping the Canal

Before your dentist can fill the root canal, they must shape it. Using a thin instrument, they will shape the canal to make it easier to fill. After that, it will be disinfected for the second time. 

4. Filling the Canal

Once the canal has been shaped, your dentist will place a rubber-like filling inside, using compression to ensure it’s properly sealed—which is very important for keeping bacteria out. Next, your dentist will seal the hole that leads to the canal's opening. 

Additionally, your dentist might need to place a dental post in the tooth to strengthen it. However, this is reserved for only the most damaged teeth. Your dentist might also place a temporary crown on your tooth while you heal. 

5. Healing

This concludes the root canal procedure. Your dentist will send you home with an antibiotic prescription so your root canal can heal. Once the anesthetic wears off, you can expect to feel a mild degree of discomfort; however, this should subside fairly quickly. 

6. Adding a Crown

You might need to go back for a crown if your tooth is significantly damaged. A crown is a simple “cap” placed on your tooth. It looks and functions just like a regular tooth. Once this is placed on your tooth, you’ll be able to resume regular activities such as chewing and biting. 


A root canal is a fairly common procedure that gets rid of inflammation in the deepest layer of your tooth. While a root canal procedure is fairly quick, healing from it may take several days and requires you to follow certain aftercare tips. 

As far as eating is concerned, it’s a good idea to avoid anything too hot, hard to chew, or can stick to your teeth. Instead, stick to soft foods that require minimal chewing.

In either case, it’s best to discuss root canal aftercare with your dentist. Flossy has a network of dental professionals that will expertly guide you throughout the entire root canal process—from the initial consultation to the healing process.


Root Canal Post Treatment Care | American Association of Endodontists

Cigarette Smoking Increases Risk for Root Canal Treatment | Nature

Factors Affecting the Periapical Healing Process of Endodontically Treated Teeth | NCBI

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