Magok Dental Clinic_“Startled by Cold Foods!” [1. Causes of Sensitive Teeth (Dentin Hypersensitivity)]

Hello.

This is Seoul Dia Dental Clinic, taking care of the chewing pleasure of Magok residents!

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The sky is clearer in autumn, and the breeze is gentle... It feels like a warm cup of tea would suit this Monday morning in September. But for those of you who think, “Warm drinks? No thanks! I’m definitely an iced Americano person!” — raise your hand!

Magok Dental Clinic_ Teeth that react to cold drinks

But have you ever suddenly thought, “Ouch! What was that?!”

and felt tears well up from that sharp, tingling pain?

Because of that brief but intense pain, you end up being careful even with desserts and drinks you normally enjoy...

Most people just brush it off, thinking, “My teeth are just a bit unusual~,”

but when you actually visit the dentist, the cause is usually revealed clearly. In other words, it’s not simply that you have a sensitive personality (?)

Today, I’ll explain something many people can relate to but don’t fully understand: causes of sensitive teeth, also known as dentin hypersensitivity.

Why do teeth become sensitive?

Magok Dental Clinic_ Principle of dentin hypersensitivity

The core principle of dentin hypersensitivity is simple.

When the hard enamel covering the outer part of the tooth wears down, or when the gums recede and expose the protected tooth root, the dentin becomes exposed.

Dentin is full of tiny tubules called dentinal tubules, and these pathways are directly connected to the nerves inside the tooth.

So when cold air, cold water, or sweet foods come in contact with the tooth, the刺激 is transmitted through the dentinal tubules straight to the nerve as a sharp "zing."

This process is exactly what causes the sensitive pain we feel.

6 major causes of dentin hypersensitivity

1. Cavities that have reached near the nerve

Magok Dental Clinic_ Cavities

Cavities often don’t show obvious signs at first. While thinking, “Oh, it’s nothing serious,” they slowly move closer to the nerve inside the tooth.

When the nerve starts getting irritated? Even one sip of iced Americano can make you go, “Ouch!” with a tingling reaction. Even a sweet cake or a cold beer makes you tense up before you can enjoy it.

2. Cracked teeth or worn-out restorations

Magok Dental Clinic_ Tooth crack

Have you ever felt a sudden sharp sting while chewing crackers? There’s a good chance there is an invisible crack in the tooth.

Even a small crack can transmit stimulation to the nerve, so sensitivity is inevitable. Old restorations such as inlays and crowns can also cause problems. If gaps form, bacteria can enter, and as a result, new cavities may develop or sensitivity may worsen.

3. Tooth wear

Magok Dental Clinic_ Tooth wear

Brushing three times a day! It’s great that you’re trying hard... but are you using too much force? Strong brushing, teeth grinding, and natural wear that comes with aging. When these three combine, the tooth surface wears down and becomes thinner.

This is also called attrition or cervical abrasion. When the surface becomes thin, even a slight breeze can trigger a nerve response.

4. Gum recession

Magok Dental Clinic_ Gum recession

Gums are like a sturdy armor protecting the tooth root. But when gums recede due to brushing habits, tartar, age, or gum disease? The armor is stripped away, and the sensitive tooth root is left exposed to the outside.

The result is simple. Cold drinks → immediate sensitivity! Even the cool autumn breeze can feel painful.

5. Chronic gum disease

Magok Dental Clinic_ Chronic gum disease

Food debris → plaque → tartar. When this works its way deep into the gums, inflammation develops. This is what we commonly call periodontal disease, or pyorrhea.

The problem is that inflammation doesn’t just bother the gums; it also affects the nerves inside the teeth, making them even more sensitive. If left unmanaged, the likelihood of sensitive teeth increases.

6. Sensitivity after treatment

Magok Dental Clinic_ Caries removal

After cavity treatment, inlay, or crown procedures, the teeth may become sensitive for a few days. This happens because the tooth becomes temporarily sensitive during the preparation or bonding process.

Usually, it gets better in 1 to 2 weeks. But if the sensitivity continues for more than a month? You should definitely return to the dentist.

To summarize today’s post

Root cause of sensitive teeth

Dentin exposure + nerve stimulation through dentinal tubules

6 major causes of dentin hypersensitivity!

1. Deepened cavities

2. Cracked teeth, worn-out restorations

3. Incorrect brushing habits & tooth wear

4. Gum recession

5. Chronic gum disease

6. Temporary reaction after treatment

Even a small inconvenience, if left untreated, can make daily life uncomfortable and may later lead to more extensive treatment.

Seoul Dia Dental Clinic, Magok

Sensitive teeth (dentin hypersensitivity) should not be ignored. At Seoul Dia Dental Clinic, we carefully analyze the cause and provide personalized solutions for each patient.

“We can fix this just by changing your habits.” “This one is something we should start treating now.” We’ll tell you honestly and recommend only the treatment that is truly necessary. We are not the kind of place that recommends unnecessary treatment. That’s not the style of Seoul Dia Dental Clinic in Magok-dong.

Today, we looked at the causes of sensitive teeth. Next time, we’ll give you more useful and realistic information about treatments for sensitive teeth.

With Seoul Dia Dental Clinic near Magok Station, you can enjoy iced Americano freely even in the chilly autumn breeze. We’ll take good care of your teeth.

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

[ Seoul Dia Dental Clinic, Magok Sensitive Teeth (Dentin Hypersensitivity) Series ]

1. Causes of Sensitive Teeth

2. Treatment for Sensitive Teeth

3. Prevention of Sensitive Teeth