NOA Dental Clinic

Tooth Sensitivity: Causes and Remedies

Tooth sensitivity can be a frustrating and uncomfortable dental issue. You may be dealing with tooth sensitivity if you’re experiencing sharp pain or discomfort when consuming hot or cold foods and beverages. 

This article will explore the causes of tooth sensitivity and provide effective remedies to alleviate the discomfort.

Understanding Tooth Sensitivity: An Overview

Tooth sensitivity, also known as dentin hypersensitivity, affects millions worldwide. It is characterised by a sharp, sudden pain that can occur when teeth are exposed to stimuli like cold or heat. Understanding its causes and remedies is essential for effective management and prevention.

  • Dentin Exposure: When the enamel wears down, the dentin underneath gets exposed, leading to sensitivity.
  • Short-lived Pain: Sensitivity typically causes brief pain rather than prolonged discomfort.
  • Common Issue: Many adults will experience tooth sensitivity at some point.
  • Varied Triggers: Stimuli can range from cold air, sweet foods, and acidic drinks to even brushing or flossing.
  • Preventable Condition: Many can reduce or eliminate tooth sensitivity with appropriate care.
  • Reversible Condition: Tooth sensitivity can be effectively treated or managed in many cases.

Common Causes of Sensitive Teeth

Sensitive teeth can arise from various causes, from dietary habits to dental procedures. Wear and tear, gum diseases, and specific treatments can increase sensitivity. It’s crucial to identify the root cause for appropriate treatment.


Brief Description

Worn tooth enamel

Gradual wear exposes dentin, increasing sensitivity.

Exposed tooth roots

Gum recession can expose roots, which lack protective enamel.


Decay can reveal the inner layers of a tooth.

Cracked teeth

Cracks can allow substances to irritate the nerve.

Gum disease

Inflammation can lead to gum recession and root exposure.

Recent dental procedures

Procedures may temporarily increase sensitivity.

This table lists the typical culprits behind tooth sensitivity, offering a snapshot of the underlying dental issues that can lead to discomfort.

The Anatomy of a Tooth: Why Sensitivity Occurs

The structure of a tooth is intricate, with multiple layers serving different functions. The enamel protects the inner dentin, which contains microscopic tubules filled with nerve endings. When dentin is exposed, these nerve endings can react to stimuli, leading to sensitivity.

  • Enamel: The hard, outermost layer of a tooth that protects against daily wear.
  • Dentin: Beneath the enamel, tiny tubules transmit signals to the nerve.
  • Pulp: The innermost part containing the tooth’s nerve and blood vessels.
  • Cementum: Covers the tooth root and helps anchor it within the jawbone.
  • Periodontal Ligament: Connects the tooth to the jawbone and acts as a shock absorber.
  • Exposure of Tubules: Once exposed, the tubules in the dentin allow heat, cold, or acidic substances to reach the nerves inside the tooth.
  • Protection Mechanism: The enamel and cementum are barriers, preventing external stimuli from reaching the sensitive inner dentin.

Foods and Drinks to Avoid with Sensitive Teeth

Certain foods and drinks can exacerbate tooth sensitivity due to their temperature or acidity. Avoiding or minimising these can play a crucial role in managing discomfort. Also, recognising and moderating consumption can lead to significant relief.

  • Cold Beverages: Drinks like iced water or cold sodas can trigger sensitivity.
  • Hot Drinks: Tea, coffee, and hot chocolate might cause discomfort to exposed dentin.
  • Acidic Foods: Citrus fruits, tomatoes, and certain sauces can erode tooth enamel over time.
  • Sugary Snacks: These can promote bacterial growth, leading to plaque build-up and eventual enamel erosion.
  • Alcoholic Beverages: Certain alcohols, especially those acidic, can be detrimental.
  • Hard Foods: Chewing on hard candies or ice can lead to chips or cracks in the teeth.
  • Carbonated Drinks: These often contain high acid levels, which can erode enamel.

The Role of Dental Hygiene in Preventing Sensitivity

Good dental hygiene practices can significantly reduce the risk of developing tooth sensitivity. By brushing and flossing regularly and keeping up with dental check-ups, you not only ensure the health of your teeth but also fortify your defence against dentin hypersensitivity.

  • Soft-bristled Brushes: Using these can prevent enamel wear and gum recession.
  • Fluoride Toothpaste: This strengthens enamel, making teeth more resistant to acid attacks.
  • Regular Flossing: It removes plaque build-up between teeth, preventing gum diseases that can expose roots.
  • Mouthwash: Antiseptic variants help in combating bacteria and reducing plaque.
  • Routine Dental Check-ups: Regular visits help in early detection and management of potential issues.
  • Gentle Brushing: Too much force can wear away the enamel and recede gums.
  • Limit Acidic Food Intake: This reduces the chances of enamel erosion.

Over-the-counter products for Treating Tooth Sensitivity

Numerous products are available in stores that can offer relief from tooth sensitivity. These are formulated to strengthen enamel or block the tubules in the dentin. While effective for many, it’s advisable to consult a dentist before use.

  • Desensitising Toothpaste: Contains compounds that block sensation from travelling to the nerve.
  • Mouth Rinses: Some are fortified with fluoride to strengthen teeth and reduce sensitivity.
  • Gel-based Treatments: These provide a protective layer over the tooth surface.
  • Fluoride Varnishes: Can be applied to exposed roots to reduce sensitivity.
  • Toothbrushes for Sensitive Teeth: Designed to clean effectively without causing further damage.
  • Night Guards: For those who grind their teeth, it helps prevent further wear.
  • Dental Floss: Helps in cleaning between teeth, reducing plaque and the potential for gum recession.

Professional Dental Treatments for Persistent Sensitivity

For those whose sensitivity persists, professional dental treatments can offer solutions. These treatments target the underlying causes, providing long-lasting relief. They are typically recommended after a thorough evaluation by a dentist.

  • Bonding: Resin is applied to sensitive root surfaces, protecting them from stimuli.
  • Fluoride Gel Treatment: Offers a concentrated fluoride dose to strengthen enamel and dentin.
  • Dental Sealants: Provides a protective layer over the chewing surfaces of teeth.
  • Root Canal Treatment: For severe and persistent sensitivity, it treats the problem at the pulp.
  • Desensitising or Bonding: These treatments can treat exposed root surfaces.
  • Surgical Gum Graft: In cases of gum recession, it protects the exposed root and reduces sensitivity.
  • In-office Laser Treatments: These can reduce sensitivity by sealing the tubules in the dentin.

Natural Remedies and Home Care Tips

Natural remedies and consistent home care can effectively manage mild to moderate tooth sensitivity. These methods are less invasive and often rely on household ingredients or habits. However, for persistent issues, professional consultation remains paramount.

  • Warm Salt Water Rinse: Acts as a natural antiseptic, helping to reduce inflammation.
  • Green Tea: Used as a mouthwash, it can strengthen teeth and combat inflammation.
  • Coconut Oil Pulling: Helps reduce plaque and bacteria that can cause sensitivity.
  • Avoiding Extreme Temperatures: Using a straw for cold drinks or letting hot beverages cool can reduce direct contact with sensitive areas.
  • Soft Foods Diet: Temporarily switching to softer foods can help reduce the pressure on sensitive teeth.
  • Clove Oil: Its analgesic properties can offer relief when applied sparingly.
  • Regular Rinsing: Keeping the mouth clean reduces bacterial build-up and potential triggers.

When to Consult a Dentist about Your Tooth Pain

While many instances of tooth sensitivity can be addressed with home remedies, it’s crucial to seek professional care for persistent or severe pain, swelling, or any unusual symptoms. Addressing these concerns early on can help prevent more serious dental issues.

  • Sudden Onset: Rapidly emerging sensitivity can indicate an underlying issue.
  • Prolonged Pain: Sensitivity lasting longer than a week should be addressed.
  • Swelling or Inflammation: These can indicate infections or other dental problems.
  • Visible Damage: Chips, cracks, or noticeable decay should be assessed by a dentist.
  • After Dental Procedures: Increased sensitivity post-treatment should be discussed.
  • Receding Gums: Exposed roots can lead to sensitivity and other dental issues.
  • Discoloured Teeth: Changes in tooth colour can signal internal problems.

Preventing Tooth Sensitivity: Best Practices and Recommendations

Proactive measures can significantly decrease the risk of developing tooth sensitivity. Adopting a comprehensive oral care regimen and regular dental visits is the key. Prevention is undoubtedly more effective than treatment.

  • Regular Check-ups: Routine dental visits can catch and address issues early on.
  • Proper Brushing Technique: Gentle circular motions prevent enamel wear and gum damage.
  • Fluoridated Water: Drinking and rinsing with it can help strengthen tooth enamel.
  • Dietary Choices: Reducing the intake of acidic and sugary foods and drinks can protect enamel.
  • Avoiding Tobacco: Smoking or chewing tobacco can exacerbate gum recession and sensitivity.
  • Wearing Mouthguards: For sports or if you grind your teeth, it can protect from potential damage.
  • Stay Hydrated: Drinking water helps wash away acids and sugars, reducing their impact on teeth.

Tooth sensitivity is a common dental issue where one experiences sharp pain or discomfort when consuming hot, cold, sweet, or acidic foods and drinks. This condition can arise from enamel erosion, receding gums, or tooth decay.

There are several remedies to tackle tooth sensitivity, ranging from desensitising toothpaste to professional treatments offered by dentists. Maintaining good oral hygiene and avoiding highly acidic foods can also help prevent the onset or worsening of tooth sensitivity.

Are you experiencing discomfort with your teeth? Don’t wait any longer. Schedule a Consultation with Noa Dental Clinic today, and let us guide you towards a brighter, pain-free smile!

Tooth Sensitivity: Causes and Remedies – FAQs

Why are there multiple toothbrushing techniques?

Different techniques address various oral health needs and individual challenges, such as braces or sensitive gums.

How often should I replace my toothbrush or brush head?

It’s recommended to replace your toothbrush or the head of an electric toothbrush every 3-4 months or sooner if the bristles are frayed.

Can brushing too hard damage my teeth?

Vigorous brushing can cause enamel wear, gum recession, and increased tooth sensitivity.

Is it necessary to brush for a full 2 minutes?

Brushing for 2 minutes ensures that you give adequate attention to all areas of your mouth for effective plaque removal.

Do electric toothbrushes clean better than manual ones?

Some studies suggest electric toothbrushes can be more effective at plaque removal, but the best results come from proper technique, regardless of brush type.

How do I know if I'm using the proper brushing technique?

It’s best to consult with a dentist or dental hygienist. They can guide you on the technique that suits your oral health needs.