What are Abfraction Lesions?

abfractoin of anterior teeth

When it comes to maintaining oral health, many people are aware of cavities and gum disease, but there’s another dental issue that deserves attention: abfraction lesions. Abfraction lesions are a less common but important concern that can impact your teeth and oral well-being. In this blog post, we will delve into what abfraction lesions are, their causes, symptoms, and available treatment options.

What Are Abfraction Lesions?

Abfraction lesions are small, V-shaped notches or grooves that appear on the surface of teeth, typically near the gumline. They are often seen on the premolars and canines and may affect one or multiple teeth. Abfraction lesions result from the loss of tooth structure due to mechanical stress, usually caused by excessive tooth flexure or grinding.

Several factors contribute to the development of abfraction lesions, including:

  • Tooth Flexure: Tooth flexure occurs when teeth bend or flex under the pressure of biting or grinding. This bending can lead to microfractures and the formation of abfraction lesions over time.
  • Bruxism: Bruxism, or teeth grinding and clenching, places excessive force on the teeth. This habit can contribute to the development and progression of abfraction lesions.
  • Incorrect Brushing Technique: Aggressive or incorrect brushing techniques, such as brushing with excessive force or using a hard-bristle toothbrush, can wear down tooth enamel and increase the risk of abfraction lesions.
  • Erosion: Regularly consuming acidic foods or beverages can also wear down the enamel and increase the risk of abfraction lesions. Certain medical conditions, such as GERD, can also contribute to enamel erosion
  • Malocclusion: Having an improper bite, where teeth do not align correctly, can result in uneven distribution of force during biting and contribute to abfraction lesions.

Symptoms of Abfraction Lesions

Abfraction lesions may not always cause noticeable symptoms, especially in their early stages. However, as they progress, the following symptoms may become evident:

  • Tooth Sensitivity: Increased sensitivity to hot, cold, sweet, or acidic foods and drinks is a common symptom of abfraction lesions.
  • Notching or Grooves: Visibly noticeable notches or grooves at the gumline or near the neck of the affected teeth.
  • Tooth Discoloration: Changes in tooth color, often appearing as a dark, grayish, or yellowish hue.
  • Tooth Pain: Discomfort or mild pain may occur when the abfraction lesions are more advanced and affect the nerve inside the tooth.

Treatment Options for Abfraction Lesions

Early detection and treatment are crucial for managing abfraction lesions effectively. In some cases, a combination of treatments may be recommended. Here are some treatment options that your dentist may recommend:


For mild cases, your dentist may use dental bonding to fill in the notches and protect the tooth from further damage.


If the lesions are more severe or have damaged a significant portion of the tooth, a dental crown may be necessary to restore its strength and appearance.

Tooth Sensitivity Management: 

Over-the-counter desensitizing toothpaste or professionally applied fluoride varnish can help manage tooth sensitivity associated with abfraction lesions.

Occlusal Splints or Night Guards: 

If bruxism is the underlying cause, your dentist may prescribe an occlusal splint or night guard to protect your teeth from grinding and reduce the stress on them.

Corrective Orthodontics: 

In cases where malocclusion is contributing to abfraction lesions, orthodontic treatment may be recommended to improve bite alignment.

Preventative Measures

Preventing abfraction lesions involves a combination of good oral hygiene practices and lifestyle changes. Here are several measures you can take to help prevent the development and progression of abfraction lesions:

Proper Toothbrushing Technique: 

Use a soft-bristle toothbrush and brush gently in a circular motion. Avoid aggressive or excessive force while brushing, as this can wear down tooth enamel and contribute to abfraction lesions.

Use a Toothpaste with Fluoride: 

Fluoride toothpaste helps strengthen tooth enamel and make it more resistant to acid erosion and wear. Ensure your toothpaste contains fluoride and use it regularly.

Floss Daily: 

Flossing helps remove plaque and food particles from between your teeth and along the gumline, reducing the risk of gum recession and abfraction lesions in these areas.

Regular Dental Check-Ups:

Schedule routine dental check-ups and professional cleanings with your dentist. Regular examinations can help detect abfraction lesions in their early stages when they are easier to treat.

Manage Bruxism: 

If you grind or clench your teeth, discuss this with your dentist. They can recommend a custom-made night guard or occlusal splint to protect your teeth from the excessive forces associated with bruxism.

Orthodontic Treatment:

If you have malocclusion (improper bite) that contributes to abfraction lesions, consult an orthodontist for an evaluation. Orthodontic treatment can improve bite alignment and reduce stress on the teeth.

Dietary Choices: 

Limit your consumption of acidic foods and beverages, as they can weaken tooth enamel. If you do consume acidic substances, rinse your mouth with water afterward or chew sugar-free gum to stimulate saliva production, which helps neutralize acids.

Reduce Stress:

Stress can exacerbate bruxism and clenching. Practicing stress-reduction techniques such as meditation, yoga, or relaxation exercises can help minimize the impact of stress on your oral health.

Customized Oral Hygiene Plan:

Work with your dentist to develop a personalized oral hygiene plan that addresses your specific needs and concerns. They can provide guidance on the best oral care practices for your situation.

Avoid Tobacco Products:

Smoking and using tobacco products can contribute to gum recession and periodontal issues, which can increase the risk of abfraction lesions. Quitting tobacco can benefit both your oral and overall health.

By incorporating these preventive measures into your daily routine and seeking professional guidance from your dentist, you can significantly reduce the risk of developing abfraction lesions and maintain a healthy, strong smile. Regular dental check-ups are crucial for early detection and intervention, ensuring that any potential issues are addressed promptly.


Abfraction lesions are a dental concern that can affect anyone, and they often result from a combination of factors. Regular dental check-ups and proper oral hygiene practices are essential for preventing abfraction lesions and addressing them at an early stage. If you suspect you have abfraction lesions or experience any related symptoms, don’t hesitate to schedule an appointment with your dentist. Early intervention can help preserve your oral health and prevent further damage to your teeth.

Dr. Sisko

Dr. Gerald Sisko graduated from Ohio State University College of Dentistry in 1987. He is an active member of the American Dental Association, the Ohio Dental Association, and the Akron Dental Society where he is currently holding a council position. He has had the honor and distinction of being awarded “TOP DENTIST” in Akron and Cleveland as well as Northeast Ohio for the last several consecutive years.


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