Dental crown

What is a crown made of?

Crowns can be made of a variety of different materials, such as porcelain or porcelain bonded to gold. New materials are continually being introduced. It is a good idea to talk to your dental team about which crown would be best for you.

How can my dentist fill a gap in my mouth?

If a tooth is missing, or needs taking out, there are several ways to fill the gap that is left. In some cases it is important to try to replace any missing teeth to balance the way your jaw bites. If you have several missing teeth, the remaining teeth are under more pressure. This can lead to broken fillings or even jaw problems.

A partial denture is the simplest way to replace missing teeth. However, some people find dentures uncomfortable and eventually decide to look at alternatives, such as bridges or implants.

What is a bridge?

Bridges are ideal for people who don't like dentures and only have a few teeth missing. Bridges are usually made by putting a crown on the teeth on either side of the gap and attaching a false tooth in the middle. The bridge can't be removed. These bridges are usually made of precious metal bonded to porcelain. Sometimes other non-precious metals are used in the base to give it extra strength.

What if I don't want my remaining teeth drilled?

Adhesive bridges are another way of bridging a gap, and less of the tooth needs removing. These bridges are made up of a false tooth with metal ‘wings' on either side. These wings are made to bond to the teeth on either side, with very little drilling needed. Instead, the teeth are roughened and the bridge is fitted using a very strong composite resin.

Can implants be used to replace missing teeth?

dental implantsImplants are an alternative to dentures and bridges, but they are more expensive. Implants are titanium rods which are surgically placed into the jawbone and act as anchors for fastening dentures or crowns onto.

Can I lighten the colour of my teeth?

Yes. Tooth whitening can be a highly effective way of lightening the natural colour of your teeth without removing any of the tooth surfaces. It cannot make a complete colour change, but it should lighten the existing shade.

What does tooth whitening involve?

Professional bleaching is the most common form of tooth whitening.

Your dental team will apply the whitening product to your teeth, using a specially made tray which fits into your mouth like a mouthguard.

The ‘active ingredient' in the product is usually hydrogen peroxide or carbamide peroxide. As the active ingredient is broken down, oxygen gets into the enamel on the teeth and the tooth colour is made lighter.

Once your dental team has started this treatment you may be given the trays to take home and continue the treatment, or you may need more appointments with the team. This treatment can take around 3 to 4 weeks, depending on how long you keep the trays in your mouth each time, and how much whiter you want your teeth to be.

It is important to remember that only natural teeth will be whitened, and that any crowns, bridges or dentures you have will stay the same shade.

What other tooth-whitening methods are there?

There is now laser whitening or ‘power whitening'. During this treatment a light or laser is shone on the teeth to activate the chemical. The light speeds up the chemical reaction of the whitening product and the shade change can be achieved more quickly. Laser whitening can make teeth up to five or six shades lighter. This treatment usually takes about one hour and should only be carried out by the dental team.

What about home whitening kits?

There are many home whitening kits available, including paint-on whiteners and strips. How effective these are depends on the amount of whitening agent they contain.

Regulations on the sale of these vary from country to country and some of the products on the market are not effective. Always ask your dental team for advice before trying to whiten your teeth at home.

What is an 'incorrect bite'?

This is when the teeth do not meet together properly or are not in balance with the rest of the face, or if teeth are lost and not replaced.

What can happen if it is not treated?

If an incorrect bite is not treated the face can ‘collapse'. This can cause the face to sag, the chin to stick out or the smile to droop. It can even cause headaches, neck pain and pain in other parts of the body.

How can it be treated?

There are a number of treatments, including crowns, veneers and orthodontics (braces). Ask your dental team which treatment is most suitable for you. Ask for an estimate of the cost and a written treatment plan before you start.

Can my crooked or twisted teeth be straightened?

Teeth can be straightened with orthodontics (braces). This is usually done during the teenage years, when the jaws are going through a period of growth. However, many adults also have treatment to straighten their crooked teeth or to improve their appearance. The treatment can take much longer in adults and is therefore more expensive.

Some people have clear or plastic braces, which are hardly noticeable. If you are considering orthodontic treatment, first see your dental team and get their advice. Your dental team can talk to you about your treatment options and if necessary refer you to an orthodontist, a dentist who specialises in straightening teeth.

There are also now ‘invisible' braces. Your dentist will make you a series of clear plastic shields (like a mouthguard) which need to be worn all day and gradually move your teeth into a new position.

Are there any alternatives to orthodontics?

Cosmetic contouring can be used to improve the appearance of teeth. It is ideal if you have irregular-shaped or slightly crowded teeth.

However, in contouring the teeth a small amount of enamel would be lost. Contouring can also be used to improve the shape and appearance of your gums. These treatments are not recommended for young children.

What is tooth jewellery?

Tooth jewellery involves sticking small jewels onto the teeth using dental cement. They should be fitted by a dentist, who can easily remove them if necessary. It is important to keep the area around the jewel clean, as plaque can easily build up around it and you will be more likely to get tooth decay.