Who wears the Crown?

What is a Dental Crown:

A dental crown is a tooth-shaped “cap” that is placed over a tooth to cover the tooth, to restore its shape and size, strength, and improve its appearance. We, therefore, use dental crowns to restore teeth with extensive decay, fractures or wear.

The crowns when cemented into place, fully encase the entire visible portion of a tooth that lies at and above the gum line.

Why would I need a Dental Crown?

  • To restore an already broken tooth or a tooth that has been severely worn down
  • To cover and support a tooth with a large filling when there isn’t a lot of the tooth left
  • To hold a dental bridge in place or to cover a dental implant
  • We use dental crowns to restore teeth with extensive decay, fractures or wear
  • To cover severely discoloured teeth
  • To make a cosmetic modification

Difference between pmf, E-Max and Zirconia Crowns:


A pmf crown consists of a metal structure covering the tooth, with porcelain fused onto it. The metal can cause a black line that is visible on the tooth, as well as darkening of the gums.

At CSD, the indication for pmf crowns are very small, and we use metal-free options wherever possible.


The E-Max dental crown is considered to be the best inclusion in dental crown technology. It is an all-ceramic crown which provides the best appearance by complimenting with the natural teeth. It has an appealing translucent colour and is highly durable with extra strength, so it lasts longer. E-max crowns are generally constructed by 4 techniques: Pressed, milled Yttrium Zirconia, pressed to Zirconia, and a milled aesthetic glass.


Zirconia is a strong, biocompatible material, which is also used in medical applications like artificial joints. It’s all ceramic and known for improving the appearance of teeth that have previously been stained for an extended period of time.

The steps involved in preparing a tooth for a crown?

Preparing a tooth for a crown usually requires two visits to the dentist. The first step involves examining and preparing the tooth; the second visit involves placement of the permanent crown.

How long do dental crowns last?

On average, dental crowns last between 8 and 15 years. The lifespan of a crown depends on the amount of “wear and tear” the crown is exposed to, how well you follow good oral hygiene practices and your personal mouth-related habits.

Does a crowned tooth require special care?

While a crowned tooth does not require any special care, remember that simply because a tooth is crowned does not mean the tooth is protected from decay or gum disease. Therefore, continue to follow good oral hygiene practices, including brushing your teeth at least twice a day, flossing daily, especially around the crown area where the gum meets the tooth and rinsing with an antibacterial mouthwash at least once a day.

For any of your dental needs, pay the team at Corne Smith Dentistry, Claremont Cape Town a visit, because we love your teeth just as much as you do!