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Can Porcelain Dental Crowns Cause Bad Breath? Causes & Solutions

Nguyen Thi Ngoc Hoa
Nguyen Thi Ngoc Hoa
Asked: 19/09/2026

Doctor, I am considering getting porcelain crowns because many of my teeth are quite decayed and damaged. However, I have heard some people say that getting porcelain crowns can cause bad breath if the procedure is not performed properly or if oral hygiene is inadequate. This makes me somewhat worried because I am very concerned about bad breath. Could you please tell me whether getting porcelain crowns actually causes bad breath and what the common causes are? Also, how can this condition be prevented or treated if it occurs?

Hello, many people after undergoing dental restoration often wonder whether porcelain dental crowns cause bad breath and whether having porcelain crowns can affect their breath. In reality, if the procedure is performed correctly and good oral hygiene is maintained, whether porcelain dental crowns cause bad breath depends on many different factors.

Can Porcelain Dental Crowns Cause Bad Breath?

In reality, whether porcelain dental crowns cause bad breath also depends on the quality of the porcelain crowns, the dentist’s expertise, and how oral hygiene is maintained after dental restoration.

If the porcelain crowns are placed using the correct technique, fit closely against the natural teeth, and proper hygiene is maintained, porcelain dental crowns generally do not cause bad breath. Conversely, if there are errors during the restoration process or oral hygiene is not properly maintained, this may result in bad breath after getting porcelain crowns.

Causes of Bad Breath After Getting Porcelain Crowns

There are several causes that may result in bad breath after getting porcelain crowns following dental restoration.

Porcelain Crowns Do Not Fit Properly

If the porcelain crown does not fit closely against the prepared natural tooth, food particles and bacteria can easily become trapped in the gaps.

Over time, bacteria can multiply and cause an unpleasant odor in the oral cavity.

Poor Oral Hygiene

After getting porcelain crowns, if oral hygiene is not properly maintained, plaque and bacteria can accumulate around the porcelain crowns and gums.

This can cause many people to experience bad breath after getting porcelain crowns.

Gingivitis or Periodontitis

Oral conditions such as gingivitis or periodontitis can also be causes of bad breath after getting porcelain crowns.

If not treated promptly, these conditions can affect long-term oral health.

Low-Quality Porcelain Materials

Low-quality porcelain crowns may be more prone to discoloration, plaque accumulation, and creating an environment conducive to bacterial growth.

This is also one of the reasons why many people are concerned about whether porcelain dental crowns cause bad breath.

How to Treat Bad Breath After Getting Porcelain Crowns

When experiencing bad breath after getting porcelain crowns, you should visit a dental clinic so that the dentist can examine you and determine the specific cause.

In some cases, the dentist may need to adjust the porcelain crown, clean the gum and tooth area, or treat any related oral conditions.

In addition, proper oral hygiene and regular dental check-ups can also help improve breath odor and protect oral health.

How to Prevent Bad Breath When Getting Porcelain Crowns

To reduce the risk of bad breath after getting porcelain crowns, you should pay attention to the following care methods.

  • Brush your teeth at least twice a day with a soft-bristled toothbrush
  • Use dental floss or a water flosser to clean between the teeth
  • Limit foods that can easily cause unpleasant odors in the oral cavity
  • Have regular dental check-ups to monitor the condition of the porcelain crowns
  • Choose a reputable dental clinic to ensure that the porcelain crowns are placed using the correct technique

If you are concerned about whether porcelain dental crowns cause bad breath, or are experiencing bad breath after getting porcelain crowns, you can visit Gangwhoo Cosmetic Hospital for a detailed examination and consultation with a dentist. With a team of specialized dentists and a modern dental technology system, the hospital will help assess the condition of your porcelain crowns and provide an appropriate treatment solution to ensure oral health and consistently fresh breath.


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