Do you have teeth decay along the gum line? Find out the causes, types of decay and possible treatments available.

The causes and treatment of your gum line problems depend on the size of the cavity and its location:

Subgingival Decay

The decay or cavity extends below the gum line. Since the area below your gums is harder to clean, they become home for bacteria and the tooth decay begins.

People with restorations need to practice good oral hygiene and make sure that they clean the margins of the restorations and check if there are tooth breaks down the filling or near to it.

Otherwise, gum disease will set in. If you notice leaks on the filling or any sign of decay below the gum line; make an appointment with your dentist so they can fix it before the gum disease gets any worse.

Root Cavities

When the cavities occur deep along the root, it is time to see a dental professional who might cut open flaps to get to your root decay.

This condition can occur as a result of the following:

  • Gum disease
  • Improper brushing. Don’t use a toothbrush with bristles that are too hard for your gums. It may damage your soft tissues and encourage bacterial growth at the roots of your teeth.
  • Old age. As you grow older, age-related changes to your gums are likely to occur. Medications can cause dry mouth. As saliva decreases, your teeth get lesser protection from cavities. Seniors are also more likely to experience exposed root surfaces which makes them prone to gum diseases. Poor eyesight also makes it harder to care for teeth because they may not see their teeth properly when brushing.
  • Gingival recession: Loss of gum tissue or retraction of your gum margins from the crown of your teeth could cause receding gums.

Gum Line Cavities

Cavities on the side of the gum are commonly caused by sugary diet or bacteria. This type of cavities is painful, sensitive and requires immediate action because it could quickly break down your tooth and the surrounding soft tissues.

Other causes of gum line cavities include the following:

  • Diabetes
  • Drinking Alcohol and abusing drugs
  • Drinking sugary or carbonated drinks
  • Dry mouth
  • Children and adults that come from lower-income families are at high risk of getting this condition.
  • Not drinking fluoridated water
  • Old age
  • Smoking
  • Undergoing radiation therapy

If you notice abscesses, blisters or swelling along your gum line your dentist may prescribe several treatment options depending on the severity of your condition. It may include fillings, crowns or root canals.

When a cavity develops at your gum line, seek quality care and service from dental professionals immediately.


Here are simple steps you can make to prevent gum cavities:

  • Use a soft toothbrush along your gum line to prevent soft tissue injury
  • Buy prescription-strength fluoride toothpaste to make your teeth more resistant to bacteria.
  • Avoid food and drinks with high sugar or acid content
  • Brush and floss regularly

Author: Peter Mayhew

Peter is a dental hygienist in the city of Chicago, IL. In his free time he likes to write blogs and product reviews on anything dental health related.