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Mokdong Dental Clinic_1. Dental X-ray Radiation: Is It Really Dangerous? Here Are the Actual Standards

Seoul DIA Dental Clinic · 서울디아치과의원 · January 29, 2026

Hello. So that you don’t get unnecessarily scared, we simply explain only the things you need to know about what’s happening inside your mouth right now. This is Seoul Dia Dental C...

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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: Seoul DIA Dental Clinic

Original post date: January 29, 2026

Translated at: April 20, 2026 at 6:06 AM

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

Hello.

So that you don’t get unnecessarily scared,

we simply explain only the things you need to know about what’s happening inside your mouth right now.

This is Seoul Dia Dental Clinic in Magok-dong.

When a dentist says, “Let’s take an X-ray,”

a phrase almost always comes up.

“Is it okay to take it often?”

“Radiation… isn’t it bad for the body?”

To be honest,

the word “radiation” itself already sounds scary.

Because the stories you hear in the news keep coming to mind.

So today, instead of an explanation that starts by making you afraid,

Seoul Dia Dental Clinic in Magok-dong will explain dental X-rays

using realistic standards.

Dental X-rays

are not the kind of “danger” we imagine

Mokdong Dental Clinic_1. Dental X-ray Radiation: Is It Really Dangerous? Here Are the Actual Standards image 1

Magok-dong dental clinic_natural vs. artificial radiation

To put it simply first,

the radiation from dental X-rays is

a level even lower than the natural radiation

we are exposed to in everyday life.

First, there are two main types of radiation.

  1. Natural radiation

→ Radiation we naturally receive every day as we live,

such as radiation from sunlight, the ground, the air, food, and outer space

  1. Artificial radiation

→ Used only in very small amounts when necessary,

such as hospital tests, X-rays, and CT scans

So how much is a dental X-ray?

For example,

1 panoramic X-ray

→ Less radiation than what you receive naturally in a day

1 dental CT scan

→ About the amount of one flight from Seoul to Busan

“So… it’s not that big of a deal after all?”

Yes, many people really

nod their heads at this point.^^

In other words, dental X-rays

are only a very slight addition to that exposure!

They are not an amount that builds up to harm the body,

but rather an amount used briefly to obtain necessary information.

Why does it feel like they’re taken so often?

Mokdong Dental Clinic_1. Dental X-ray Radiation: Is It Really Dangerous? Here Are the Actual Standards image 2

Magok-dong dental clinic_dental X-ray

From a patient’s perspective,

“You took one last time, and now again?”

It may feel like this.

But teeth are

much more important on the inside than they appear on the outside.

Even if they look fine from the outside,

these things can be happening inside.

  1. Cavities quietly progressing under a prosthetic

  2. Inflammation spreading close to the nerve

  3. Problems growing inside the bone

These cannot be seen with a mirror or even in a photo.

That is why an X-ray is

not something you “take once and finish,”

but a process of comparing conditions and seeing changes.

Are they okay for pregnant women or children?

Mokdong Dental Clinic_1. Dental X-ray Radiation: Is It Really Dangerous? Here Are the Actual Standards image 3

Magok-dong dental clinic_pregnant woman dental treatment

We get this question a lot.

Especially during pregnancy or when there is a child,

it is natural to think first,

“What if it affects them somehow…?”

Dental radiographic exams are taken only when absolutely necessary,

with protective equipment worn and the smallest possible area imaged.

In other words, it is not a test taken for no reason,

but a process of carefully choosing it only when the information is truly necessary for treatment.

So even pregnant women and children

can safely undergo the exam under the judgment of medical professionals

if it is difficult to delay treatment.

It is neither a test that must always be avoided,

nor one that must always be taken.

What matters is how necessary it is.

If we summarize today’s discussion to the essentials, it is this.

Dental X-rays are

not an exam to avoid out of fear,

but a safe confirmation process to prevent bigger treatment later.

  1. A lower level than the natural radiation we receive in everyday life

  2. Early detection of hidden internal problems that cannot be seen from the outside

  3. A record used not just once, but to compare changes

  4. Imaging only when necessary, in the smallest possible area

Mokdong Dental Clinic_1. Dental X-ray Radiation: Is It Really Dangerous? Here Are the Actual Standards image 4

Magok-dong Seoul Dia Dental Clinic diagnostic test confirmation

Dental X-rays are

not a test meant to harm the body,

but a safety measure to prevent bigger problems.

Seoul Dia Dental Clinic in Magok-dong

performs only the exams that are truly necessary,

and only to the extent that is needed.

Please don’t increase your worries by searching alone for no reason.

If you have questions, feel free to ask anytime.

That is the safest choice.

In the next part,

panoramic, CT, intraoral imaging…

Tests whose names alone are confusing!

We’ll organize them clearly and simply all at once.

[ This post was written for the purpose of providing accurate information about dental surgery and procedures in accordance with the Medical Service Act. Infection and side effects may occur after surgery, so surgery (procedure) should be decided after sufficient consultation with skilled medical professionals. ]

[Magok-dong Seoul Dia Dental Clinic Dental Radiation Exam Series]

  1. Safety of dental radiation exams

  2. Types of dental radiation exams

  3. Reasons for dental radiation exams

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