Tooth sensitivity: Causes, treatment and effective prevention

Tooth sensitivity is one of the most common complaints in modern dentistry. Many people are familiar with the unpleasant sharp pain caused by cold drinks, hot food, sweet treats, or even breathing in cold air.

The good news: In many cases, tooth sensitivity is treatable and, above all, preventable.

In this article, you will learn about:

• the most common causes of sensitive teeth
• why exposed tooth necks play an important role
• which treatment options can help
• how to prevent tooth sensitivity
• which toothbrushes and toothpastes dentists recommend

What is tooth sensitivity?

In dentistry, tooth sensitivity is referred to as dentin hypersensitivity.

It occurs when the dentin is exposed. Dentin is the layer beneath the tooth enamel and contains thousands of fine channels, known as dentin tubules.

These are in direct connection with the tooth nerve.

If these channels are no longer sufficiently protected by enamel or gums, stimuli can reach the nerve more easily.

Typical triggers include:

• cold
• heat
• sweets
• acids
• touch
• drafts of air

The result is often a short, sharp pain.

Exposed tooth necks – one of the most common causes of sensitive teeth

Many people talk about sensitive teeth, even though the actual cause is often exposed tooth necks.

The neck of the tooth is located at the transition between the tooth crown and the root. Normally, this area is protected by the gums.

If the gums recede or dental hard tissue is lost, sensitive areas can become exposed.

As a result, the dentin tubules are less protected and external stimuli can reach the tooth nerve more easily.

Exposed tooth necks are therefore among the most frequent causes of tooth sensitivity.

Why do exposed tooth necks react to cold and heat?

Exposed tooth necks are sensitive because the dentin is significantly less protected than the tooth crown.

Cold drinks, ice cream, hot coffee, or sweet foods can transmit stimuli directly to the tooth nerve.

Typical symptoms include:

• sharp pain when exposed to cold
• twinges when drinking hot beverages
• pain when eating sweet foods
• sensitivity when brushing teeth
• discomfort from cold air

The more exposed the dentin tubules are, the more pronounced the discomfort can be.

The most common causes of tooth sensitivity

1. Gum recession

Gum recession is one of the most common causes of sensitive tooth necks.

When the gums recede, sensitive areas of the tooth root are exposed.

Typical causes:

• incorrect brushing technique
• periodontitis
• teeth grinding
• genetic factors

Read more about it:

Gum recession – causes, symptoms, therapy, and prevention

2. Brushing too hard or incorrectly

Many people brush their teeth too vigorously.

Excessive pressure can lead to the following long-term effects:

• damage to the gums
• abrasion of tooth enamel
• development of sensitive tooth necks

Particularly problematic are:

• hard toothbrushes
• horizontal scrubbing
• abrasive toothpastes

3. Acid-related enamel erosion

Acids can slowly dissolve tooth enamel.

Frequent causes:

• soft drinks
• fruit juices
• energy drinks
• reflux
• frequent consumption of acidic foods

This reduces the protection of the dentin and increases sensitivity.

4. Teeth grinding (bruxism)

Teeth grinding puts permanent stress on the tooth structure.

The consequences can be:

• micro-cracks in the enamel
• loss of dental hard tissue
• sensitive teeth

5. Whitening products

Improperly used whitening products can temporarily increase sensitivity.

Therefore, products should be as gentle as possible.

Which toothbrush is best for sensitive tooth necks?

Choosing the right toothbrush plays a decisive role.

Bristles that are too hard or aggressive brushing can worsen the symptoms.

Many dentists therefore recommend:

• ultra-soft toothbrushes
• soft sonic toothbrushes
• applying as little pressure as possible
• gentle brushing movements

Read more about it:

Which toothbrush for gum recession?

Best toothbrush for sensitive gums

Treatment of tooth sensitivity

 

1. Remineralizing dental care

The most important approach is to protect the sensitive areas and seal the open dentin tubules.

Proven active ingredients:

• fluoride
• hydroxyapatite
• BioMin®

These support:

• remineralization
• protection of the enamel
• reduction of pain stimuli

2. Professional treatment at the dentist

Depending on the cause, additional measures may be useful:

• fluoride varnishes
• sealants
• treatment of gum problems
• therapy for periodontitis
• treatment of wedge-shaped defects

3. Adjusting oral hygiene

Often, a gentler oral care routine can help.

Important factors include:

• ultra-soft toothbrushes
• gentle brushing technique
• fluoride-containing toothpaste
• regular interdental cleaning

Which toothpaste helps with sensitive tooth necks?

For sensitive tooth necks, dentists recommend toothpastes with:

• fluoride
• BioMin®
• hydroxyapatite
• remineralizing active ingredients

These can help to:

• seal open dentin tubules
• strengthen the tooth enamel
• reduce pain stimuli
• provide long-term protection for sensitive tooth necks

Suitable product:

PEARL SHIELD PLUS toothpaste

Prevention: The key to pain-free teeth

The best treatment is prevention.

Important measures:

• gentle brushing technique
• ultra-soft toothbrush
• fluoride-containing toothpaste
• regular interdental cleaning
• avoidance of excessive acid intake
• regular dental check-ups

The role of SNOW PEARL in sensitive teeth

Modern dental care goes far beyond mere cleaning.

Ultra Soft Sonic Toothbrush

Advantages:

• Ultra Soft KONEX HD bristles
• particularly gentle on gums and tooth necks
• thorough cleaning
• ideal for sensitive teeth

Ultra Soft Manual Toothbrush

Advantages:

• maximum control
• particularly gentle cleaning
• ideal for sensitive tooth necks

PEARL SHIELD PLUS Toothpaste

Advantages:

• BioMin® technology
• continuous release of calcium and phosphate
• protection of sensitive tooth necks
• support of remineralization

SNOW SHINE Whitening Foam

Advantages:

• hydroxyapatite
• fluoride
• support of enamel repair
• daily protection against acid attacks

Why the combination is crucial

A single product is often not enough.

The best results are achieved through the combination of:

• gentle cleaning
• remineralization
• continuous protection

This is precisely where the SNOW PEARL system comes in.

Conclusion

Tooth sensitivity is one of the most common oral health problems. Exposed tooth necks in particular play an important role.

With proper dental care, symptoms can often be significantly reduced.

Decisive factors are:

• ultra-soft toothbrushes
• fluoride-containing toothpastes
• BioMin® and hydroxyapatite
• proper brushing technique
• regular check-ups

Those who act early can protect sensitive teeth in the long term and significantly improve their quality of life.

FAQ

What are the most common causes of tooth sensitivity?

Tooth sensitivity often arises from exposed dentin. Causes include gum recession, improper tooth brushing, enamel erosion, acids, and teeth grinding.

What are exposed tooth necks?

Exposed tooth necks occur when the gums recede or dental hard tissue is lost. This exposes sensitive areas of the tooth root.

Why do exposed tooth necks hurt?

Exposed tooth necks are sensitive to cold, heat, sweetness, or acidity because stimuli reach the tooth nerve more easily through the dentin tubules.

What can be done immediately for sensitive teeth?

Gentle dental care with ultra-soft brushes, fluoride-containing toothpaste, and avoiding acidic foods can help.

Which toothbrush is suitable for exposed tooth necks?

Ultra-soft manual toothbrushes or sonic toothbrushes with soft bristles are recommended, as they clean thoroughly while being gentle.

Which toothpaste helps with exposed tooth necks?

Toothpastes with fluoride, BioMin®, or hydroxyapatite can help protect sensitive areas and seal open dentin tubules.

Can exposed tooth necks disappear again?

Exposed tooth necks usually do not disappear on their own. However, the symptoms can be significantly reduced through appropriate care and dental treatments.

Is tooth sensitivity permanently curable?

In many cases, tooth sensitivity can be controlled and significantly improved in the long term. The cause and the correct treatment are decisive.

Can whitening make sensitive teeth worse?

Aggressive whitening products can increase sensitivity. Gentle products with fluoride and hydroxyapatite are usually more suitable.

Which products help with sensitive teeth in everyday life?

Ultra-soft toothbrushes, PEARL SHIELD PLUS toothpaste with BioMin®, and SNOW SHINE Whitening Foam with hydroxyapatite can support your daily oral care routine.

Professionally reviewed by

Dr. med. dent. Lorenza Dahm
Dentist, Master of Science in Oral Implantology
Founder of SNOW PEARL®

About the author

Dr. med. dent. Lorenza Dahm is a dentist with over 30 years of clinical experience and the founder of SNOW PEARL®. As a Master of Science in Oral Implantology, she has spent many years focusing on prevention, remineralization of tooth enamel, and modern concepts of dental and oral health. The recommendations described in this article are based on scientific findings and her many years of practical experience in treating patients.