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Why Drinking Alcohol During Root Canal Treatment Is Worst for Your Teeth & Liver—and How to Choose a Dentist

The Square Dental Clinic · 미소회복과 얼굴재건 전문 더스퀘어치과 · May 26, 2026

Hello. ​ This is The Square Dental Clinic, which focuses on restorative and tooth-preserving treatment. ​ ​ ​ ​ One of the questions we often hear from patients who have started ro...

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This page is an English translation of a Korean Naver Blog archive entry. For exact wording and source context, verify against the Korean archive original and the original Naver post.

Clinic: The Square Dental Clinic

Original post date: May 26, 2026

Translated at: August 17, 2026 at 12:41 PM

Medical note: This translation does not guarantee medical accuracy or suitability for treatment decisions.

Hello.

This is The Square Dental Clinic,

which focuses on restorative and tooth-preserving treatment.

Why Drinking Alcohol During Root Canal Treatment Is Worst for Your Teeth & Liver—and How to Choose a Dentist image 1

One of the questions we often hear from patients who have started root canal treatment is:

“Isn’t just one drink during root canal treatment okay?”

Since most people have social commitments, they may find it difficult to turn down an important gathering or appointment and try to reach a compromise in their own way (^^;).

However, as you probably already know deep down, drinking alcohol during the course of treatment is strictly prohibited.

This is because it can cause severe pain and inflammation and may also negatively affect your liver health.

In this post, we will discuss

what happens when you drink during root canal treatment

as well as realistic advice

about alcohol consumption.

Why Drinking Alcohol During Root Canal Treatment Is Worst for Your Teeth & Liver—and How to Choose a Dentist image 2

Why Drinking Alcohol During Root Canal Treatment Is Worst for Your Teeth & Liver—and How to Choose a Dentist image 3

Root Canal Treatment and Alcohol: Your Tooth Becomes “Like This”

Root canal treatment does not simply kill the nerve.

It is a treatment that thoroughly removes and disinfects the tiny nerve and blood vessel tissues inside a tooth that have been contaminated by bacteria.

Why Drinking Alcohol During Root Canal Treatment Is Worst for Your Teeth & Liver—and How to Choose a Dentist image 4

In other words, the inside of the tooth has been opened up with sharp instruments and is in a considerably weakened state.

What happens if you drink alcohol during root canal treatment?

Alcohol rapidly dilates the blood vessels in the body,

causing an abnormal increase in blood flow to the sensitive inside of the tooth and the surrounding gums.

As the blood pressure rises significantly inside the sealed tooth, you may feel throbbing and sharp, electric-like pain.

Why Drinking Alcohol During Root Canal Treatment Is Worst for Your Teeth & Liver—and How to Choose a Dentist image 5

That is not all.

Alcohol temporarily reduces the immune function of white blood cells in the body.

During the period when bacteria in the root canal need to be suppressed and the gum tissue needs to heal,

if immune cells are prevented from doing their job,

the likelihood of inflammation recurring at the treatment site or pus building up becomes extremely high.

Why Drinking Alcohol During Root Canal Treatment Is Worst for Your Teeth & Liver—and How to Choose a Dentist image 6

Root Canal Treatment and Alcohol: It Can Strain the Liver

Continuing from the points mentioned above, drinking alcohol during root canal treatment

can burden not only your teeth but also your liver health.

During root canal treatment, dentists prescribe medications such as antibiotics, anti-inflammatory drugs, and pain relievers

for pain control and the prevention of bacterial infection.

Why Drinking Alcohol During Root Canal Treatment Is Worst for Your Teeth & Liver—and How to Choose a Dentist image 7

Some people think, “I’m going to drink today, so I can just skip my medication, right?”

For prescribed medications to work properly in the body, normal metabolism must take place in the liver.

However, as soon as you drink alcohol, the liver devotes all its energy solely to processing the alcohol toxins.

As a result, the ingredients in dental medications may not be properly broken down and absorbed,

and may instead be excreted from the body or remain in the liver.

This can greatly reduce the effectiveness of the medication, causing severe pain that may keep you awake in the middle of the night even after taking a pain reliever,

and may place a toxic burden on the liver, increasing fatigue throughout the body and potentially causing a decline in organ function.

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When Can You Drink Alcohol?

You may be wondering how long this difficult period of abstinence will continue.

As emphasized throughout this post, alcohol is strictly prohibited if treatment is still in progress.

In general, after root canal treatment and the completion of restorative treatment, such as placing a crown over the entire tooth,

it takes at least one week for the gums and surrounding tissues to become firmly stabilized.

If you absolutely must drink, it is relatively safer to do so only after this period has passed.

Why Drinking Alcohol During Root Canal Treatment Is Worst for Your Teeth & Liver—and How to Choose a Dentist image 9

Root canal treatment is a precise procedure that involves locating each nerve canal inside tiny, curved roots and sterilizing the bacteria.

It can be described as a considerably demanding process for both the patient and the treating doctor.

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When choosing a dental clinic for root canal treatment,

🦷 Whether it has in-house 3D CT and other precision diagnostic equipment to accurately locate complex root canals
🦷 Whether specialists recognized for their expertise in fields such as integrated dentistry and orthodontics are present at the clinic
🦷 Whether the dentist provides detailed guidance on precautions before and after root canal treatment
🦷 What the treatment plan will be after root canal treatment

We recommend carefully considering these points before making your choice.

[Recommended Related Reading]

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The unchanging rule is that the more accurate the treatment and the better the patient’s cooperation,

the less pain there will be, the shorter the recovery period will be, and the sooner you can return to your daily life.

Using the root canal treatment period as an opportunity to try abstaining from alcohol may also be an excellent choice.

A single drink taken with your eyes tightly shut

could come back to you as repeat dental treatment lasting several weeks to several months, along with costs of several hundred thousand won or more.

Please remember this—very carefully.

If you have any further questions for us, please feel free to ask in the comments or through Naver TalkTalk at any time. ^^

Beyond creating a beautiful first impression, we focus on helping patients restore their quality of life and confidence.

This has been The Square Dental Clinic.

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| This post was written in compliance with Article 56, Paragraph 1 of the Medical Service Act so that you can obtain accurate information. Rather than simple promotion, we wanted to transparently share what takes place in an actual treatment room. Instead of contacting us immediately after reading this post, it is enough simply to take away accurate information. |

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