Care and Lifespan of Porcelain Crowns

Keeping porcelain crowns healthy is closely linked to daily care and regular check-ups. The information below is general in nature.

Daily care

As with natural teeth, care is important for crowned teeth:

• Brushing twice a day with a suitable technique
• Using floss or interdental brushes
• Maintaining gum health

What to watch for

Cutting very hard foods and habits such as clenching or grinding can affect crowns. If you clench, the dentist may recommend a protective night guard.

Factors affecting lifespan

Oral hygiene, dietary habits, gum health and regular check-ups all play a role in the long-term performance of crowns.

Frequently asked questions

Do crowns change colour?

Porcelain crowns are more resistant to staining than natural teeth; general oral care is still important.

Is a night guard needed?

For those who clench or grind, the dentist may recommend one as a protective measure.

What is checked at a review?

Crown fit, gum health and the overall oral condition are assessed.

Why the crown margin matters

Porcelain itself does not decay, but where the crown meets the tooth plaque can accumulate and lead to decay in the natural tooth and inflammation of the gum. Daily brushing together with interdental cleaning is therefore essential, and these areas are assessed specifically at check-ups.

Habits that affect lifespan

Clenching and grinding, biting hard objects and chewing ice all place excessive force on restorations. Where these habits are present, a night guard may be recommended. Hygiene, bite relationships and regular reviews are the main factors influencing long-term outcomes, and no individual guarantee of duration can be given.

• Daily brushing and interdental cleaning
• A protective guard where clenching is present
• Not using teeth to break hard objects
• Periodic dental reviews

When does a crown need replacing?

Marginal leakage, fracture, changes in appearance from gum recession or decay in the underlying tooth can all mean replacement is considered. Regular reviews allow such changes to be identified early, often making a more limited repair possible.

Frequently asked questions

Is bleeding around a crown a concern?

It can indicate plaque accumulation or a fit issue at the margin and should be assessed rather than ignored.

Can a crowned tooth still need root canal treatment?

Yes. If the nerve becomes inflamed or infected, treatment may be needed through or after removal of the crown.

For material options read what are zirconia and E-max crowns, and see our dental crowns page. Further reading: World Health Organization oral health resources.

This article is for general information only and does not replace an examination, diagnosis or treatment by a dentist.