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Tooth Sensitivity Reasons and Treatment Options
Table of Contents
Tooth sensitivity can cause a sudden, sharp sensation when you have something cold, hot, sweet or acidic. It often happens when the protective enamel becomes worn or when gum recession exposes parts of the tooth that are more sensitive. However, sensitivity may also be linked with tooth decay, cracks, grinding or recent dental treatment.
Understanding the possible causes of sudden tooth sensitivity can help you decide what you can manage at home and when you should see a dentist.
What Are the Most Common Causes of Tooth Sensitivity?
Tooth sensitivity is more common than many people realise. A study published in ScienceDirect involving 815 Australian adults found that 67.2% experienced symptoms consistent with dentine hypersensitivity. Despite its prevalence, nearly three-quarters (74.3%) of those affected had not sought professional dental care, while more than a quarter (26.3%) had never used any form of treatment.
The study also found that people with dentine hypersensitivity reported poorer oral and general health-related quality of life.
These findings highlight why understanding persistent sensitivity can be useful. A brief twinge after an icy drink may sometimes be manageable with appropriate oral care habits, but constant, severe, or worsening sensitivity may have an underlying cause that requires professional attention.
Several factors may contribute to sensitivity. Let’s find out tooth sensitivity reasons and treatment options here.
Enamel wear
Enamel acts as the outer protective layer of your teeth. Frequent exposure to acids, excessive brushing or other forms of tooth wear may reduce this protection. As dentine becomes more exposed, sensitivity may become easier to trigger.
Gum recession
Your gums help protect the areas around your teeth. If the gumline recedes, parts of the tooth root may become exposed. Root surfaces do not have the same enamel covering as the crown of the tooth, so they may react more strongly to cold, hot or sweet foods and drinks.
Tooth decay
A cavity may cause sensitivity, particularly as decay progresses towards the inner parts of the tooth. You may notice sensitivity around one tooth rather than across your whole mouth. However, sensitivity alone cannot confirm tooth decay. A dental examination may be needed to identify the actual cause.
Cracked or damaged teeth
A cracked tooth may react to temperature or pressure. You may also notice discomfort when biting or chewing. Because cracks can vary considerably, persistent sensitivity affecting one tooth should be assessed rather than managed solely with home remedies.
Teeth grinding and clenching
Grinding or clenching your teeth can place repeated pressure on them. Over time, this may contribute to tooth wear and make sensitive areas more noticeable.
Recent dental treatment
Some people experience temporary sensitivity after certain dental procedures. This may settle as the tooth recovers. If the discomfort persists, worsens, or becomes severe, contact your dentist for advice.
Teeth whitening
Whitening treatments can cause temporary sensitivity in some people. If you already have sensitive teeth, it may be worth discussing suitable whitening options with a dental professional before using whitening products.
How Can You Manage Tooth Sensitivity at Home?
If your sensitivity is mild and occasional, a few changes to your daily routine may help reduce the discomfort.
Choose a toothpaste for sensitive teeth
Using a toothpaste formulated for sensitive teeth may help reduce dentine sensitivity. Research suggests that toothpastes containing stannous, potassium, or arginine can help relieve sensitivity when used twice daily. However, toothpaste may not address the underlying cause if your sensitivity is linked to decay, a cracked tooth, gum recession or another dental problem. If your sensitivity is persistent or severe, see a dentist for an assessment.
Brush gently
Use a soft-bristled toothbrush and avoid pressing heavily against your teeth. Vigorous brushing can contribute to enamel wear and gum recession in some cases, which may expose more sensitive areas. Brushing gently can help protect your teeth while keeping them clean and reducing the risk of plaque build-up and gum problems.
Watch how often you consume acidic drinks
Soft drinks, sports drinks, energy drinks and acidic fruit juices may contribute to enamel erosion when consumed frequently. Reduce your exposure to dietary acids and rinse your mouth with water after eating acidic foods or drinking acidic drinks. This can help clear some of the acids from your mouth without requiring you to avoid these foods and drinks completely.
You do not necessarily need to eliminate every acidic food or drink. Reducing frequent exposure and avoiding habits such as holding acidic drinks in your mouth may be more practical.
Be careful with whitening products
If whitening increases your sensitivity, consider stopping the product and discussing your options with a dentist, particularly if the discomfort continues. Whitening products may cause temporary sensitivity for some people, so it is worth paying attention to how your teeth respond during and after treatment. If sensitivity remains, a dentist can help determine if another issue may be contributing.
Keep up your normal oral hygiene
Sensitivity should not mean avoiding brushing or cleaning between your teeth. Maintaining good oral hygiene remains important for reducing the risk of problems such as tooth decay and gum disease. Continue brushing twice a day gently and cleaning between your teeth as part of your usual routine, unless your dentist has advised you otherwise.
How Do You Treat Sensitive Teeth?
The appropriate treatment depends on why your teeth are sensitive. For mild dentine sensitivity, a dentist may recommend desensitising products or changes to your oral-care routine. If gum recession or enamel wear contributes to the problem, your dentist may focus on protecting the exposed areas and addressing factors that may be causing further wear.
If decay is responsible, the tooth may need restorative treatment. A cracked tooth may require a different approach depending on its location and extent. Sensitivity following dental treatment may need monitoring, although persistent symptoms should be reviewed.
This is why treating the symptom alone may not always solve the problem. Identifying the underlying cause can help determine the most appropriate treatment.
When Should You Visit the Dentist for Tooth Sensitivity?
You do not necessarily need to worry about every brief twinge. However, constant, severe, worsening or unexplained sensitivity should not be ignored.
You should arrange a dental assessment if:
A dentist can examine your teeth and gums and determine whether the sensitivity appears to be related to exposed dentine, gum recession, erosion, decay, damage, or another issue.
Why Visit Myra Smiles for Tooth Sensitivity?
With more than 35 years of dental experience in the Richmond area, Myra Smiles Dental and Implant Centre offers individually tailored treatment in a comfortable setting. We use advanced dental technology and provide general and preventive dental care, along with treatments such as root canal therapy, crowns and bridges, dental implants and IV conscious sedation.
If your symptoms are constant, get in touch with us. The expert dentists at our clinic can assess your teeth and help you understand the next appropriate step for your dental care.
FAQs
Mild sensitivity may improve after changes to oral care or dietary habits. Persistent symptoms should be assessed by a dentist.
Your teeth may feel sensitive due to enamel wear, gum recession, exposed dentine, decay, cracks, grinding or frequent exposure to acidic foods and drinks.
Tooth sensitivity is a sharp, short-lived sensation that may occur when your teeth encounter hot, cold, sweet or acidic foods and drinks.
Yes, a cavity may cause sensitivity, particularly when you consume hot, cold or sweet foods and drinks. A dentist can help identify the actual cause.
It depends on the cause. Brief sensitivity may settle quickly, while persistent or worsening symptoms should be discussed with a dentist.
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