AI-translated archive post

What Causes Baby Bottle Tooth Decay, and How Can It Be Prevented?

Seoul Of Dental Hospital · 서울오브치과병원 · July 16, 2026

What Causes Baby Bottle Tooth Decay, and How Can It Be Prevented? ​ When your child’s first teeth begin to come in, it can feel incredibly exciting and amazing for parents, too. ​...

AI translation notice

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 Of Dental Hospital

Original post date: July 16, 2026

Translated at: August 17, 2026 at 5:51 PM

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

What Causes Baby Bottle Tooth Decay,

and How Can It Be Prevented?

What Causes Baby Bottle Tooth Decay, and How Can It Be Prevented? image 1

When your child’s first teeth begin to come in,

it can feel incredibly exciting and amazing for parents, too.

When one or two small, white front teeth

start to appear,

it can feel even more real

that your child is growing.

But did you know that letting your child fall asleep

with a bottle in their mouth

can cause cavities in the front teeth?

When your child is fussy or has trouble falling asleep,

many parents soothe them by giving them a bottle.

However, when this habit is repeated,

it can lead to baby bottle tooth decay..!

Today, we’ll take a step-by-step look at

what causes baby bottle tooth decay,

what symptoms may appear,

and how it can be prevented! :)

What Causes Baby Bottle Tooth Decay, and How Can It Be Prevented? image 2

What Causes Baby Bottle Tooth Decay?

Baby bottle tooth decay

is a type of tooth decay commonly seen in infants and young children,

and it often affects several upper front teeth

at the same time.

But why does it occur?

When a child falls asleep

while drinking milk, formula, or juice

from a bottle,

the sugars in the drink

remain on the surface of the teeth for a long time.

Bacteria in the mouth feed on these sugars

and produce acids.

These acids weaken the tooth surface,

which is how tooth decay begins.

Saliva, which helps rinse the mouth,

is produced in smaller amounts during sleep.

As a result, the sugars left on the teeth

remain there for longer,

making the teeth more vulnerable to decay.

What Causes Baby Bottle Tooth Decay, and How Can It Be Prevented? image 3

Baby bottle tooth decay causes little to no pain in its early stages,

so it may be difficult for parents to notice.

At first, white, cloudy spots

that look as though they have been dusted with chalk

may appear on the surface of the front teeth.

As it progresses,

yellow or brown stains may develop,

while the tooth surface may become rough

or look slightly pitted.

If the decay becomes deep,

the tooth may turn black

or parts of it may break off.

If your child often becomes fussy while eating,

avoids cold or hot foods,

or resists brushing much more strongly than usual,

it may be a sign that their teeth are uncomfortable.

Because infants and young children may have difficulty clearly expressing

where and how they are hurting,

parents need to check carefully for any signs.

What Causes Baby Bottle Tooth Decay, and How Can It Be Prevented? image 4

Is Treatment Really Necessary?

Some people occasionally think that baby teeth

do not need to be treated

because they eventually fall out.

However, baby teeth are not simply

temporary teeth used for a short time..!

They are needed for chewing food and learning to pronounce sounds,

and they also affect the growth of the jaw and face.

They also help preserve space

so that the permanent teeth can come in their proper positions.

If baby teeth are lost too early because of decay,

nearby teeth may shift into the empty space,

which can leave insufficient room

for the permanent teeth to emerge later.

This may lead to irregular tooth alignment

or a situation that requires orthodontic treatment.

If the decay progresses deep enough to cause inflammation

around the tooth root,

it may also affect the permanent teeth

growing inside the gums.

For this reason, treatment should be sought as soon as possible.

What Causes Baby Bottle Tooth Decay, and How Can It Be Prevented? image 5

Above all, prevention is important.

The first habit to change

is putting your child to sleep with a bottle in their mouth.

If your child insists on sleeping with a bottle,

how about filling it with water instead of milk~?

Also, if you give your child milk or formula

before bedtime,

it is best to brush their teeth if possible.

If brushing is difficult at this stage,

you can gently wipe the teeth and gums

with clean gauze or oral wipes.

After your child turns one,

it is important to gradually reduce bottle use

and begin practicing drinking from a cup.

This requires plenty of help and attention from parents.

Baby bottle tooth decay

often progresses simultaneously

in several front teeth,

so delaying treatment

can make things more difficult for both the child and the parents.

If you notice white spots on your child’s front teeth,

brown areas, or broken areas,

it is best not to dismiss them as simple staining.

Even if there is no pain,

tooth decay may still be progressing,

so please have the condition checked by a dentist!

Healthy baby teeth

provide a valuable foundation

that helps healthy permanent teeth grow.

To help your child eat and smile comfortably,

please establish proper feeding habits

and tooth-brushing habits together from an early age!

Continue browsing

Keep exploring this clinic's public source trail

Return to the source archive for more translated posts, or open the Korean clinic profile to compare other public channels.