The advantages and disadvantages of having a crown
depend on what we are comparing the choice of a crown to… be it tooth bonding, an inlay/onlay
, a filling
or doing nothing. It also depends on the purpose of the crown- is it for protection or aesthetics for example.
In general, the main advantages of having a crown are:
- Looks (aesthetics). You can improve the colour and the shape of the tooth or teeth with crowns. Porcelain has a more natural appearance and is much more resistant to stains than white filling material (composite).
- Protection. They provide the best possible protection to a heavily broken down tooth.
The main disadvantages of having a crown are:
- Long lasting. Studies have shown that crowns last longer than any other type of dental restoration including all types of filling and implants. That said, they aren’t as good as natural teeth and once prepared for a crown, a tooth will always need a crown- there’s no going back.
- Destructive. If the tooth is completely natural, the preparation is quite damaging to the tooth as it involves grinding part of it away. Where the tooth has already been heavily damaged or has multiple or large fillings it can have actually have a protective role. Careful consideration of this is needed in treatment planning.
- Damaged Nerves. 1-15% loose vitality and will require root canal treatment. For a number of reasons it is difficult to be any more accurate than this.
- Long and multiple appointments.