Your appearance is one reason. Another is that the gap left by a missing tooth can mean greater strain on the teeth at either side. A gap can also mean your ‘bite’ is affected, because the teeth next to the space can lean into the gap and alter the way the upper and lower teeth bite together. This can then lead to food getting packed into the gap, which causes both decay and gum disease.

This depends on the number of teeth missing and on where they are in the mouth. The condition of the other teeth also affects the decision.
There are two main two ways to replace the missing teeth. The first is with a removable false tooth or teeth – a partial denture. The second is with a fixed bridge. A bridge is usually used where there are fewer teeth to replace, or when the missing teeth are only on one side of the mouth.

Yes, if you have enough strong teeth with good bone support. Your dentist will help you decide the best way of replacing your missing teeth within your budget.

Bridges are usually made of a precious metal base. If the bridge will show, porcelain is then bonded to the base. Sometimes, there are other non-precious metals used in the base to reduce the cost.

Although a bridge may seem expensive it will last many years. It will also improve your appearance and bite. A bridge uses the considerable skill of the dentist and technician, and in this way, it’s similar to ordering a piece of hand-made jewellery. The materials are also expensive so it's fair to say a bridge will not be the cheapest treatment you have ever had.

You need to clean your bridge every day, to prevent problems such as bad breath and gum disease. You also have to clean under the false tooth every day. Your dentist or hygienist will show you how to use a bridge needle or special floss, as a normal toothbrush cannot reach.

There are other methods, such as using a combination of crowns and partial dentures that can keep the retaining clips out of sight.
These are quite specialised dentures, so you should ask your dentist about them. You can also have teeth implanted, ask your dentist for more information.
Remember that it’s as important to care for your remaining teeth as it is to replace the missing ones.

Yes, there are different types of bridge which use different fixing methods. Your dentist will choose the most effective and conservative bridge for your personal situation.

A crown is an artificial restoration that fits over the remaining part of a prepared tooth, making it strong and giving it the shape of a natural tooth. A crown is sometimes known as a 'cap'.

Crowns are an ideal restoration for teeth that have been broken, or have been weakened by decay or a very large filling. A crown could be used for a number of other reasons, for instance: you may have discoloured fillings and would like to improve the appearance of the tooth you may have had a root filling which will need a crown to protect it, it may help hold a bridge or denture firmly in place.

In root-filled teeth it may be necessary to insert a post before placing a crown. A post provides support and helps the crown stay in place. The weakened crown of the tooth may be shortened to gum level. A post can be made of prefabricated stainless steel which the dentist can fit directly into the root canal, or a custom-made post can be constructed by the dental technician to accurately fit the shape of the prepared root canal. The post is placed into the root canal and cemented in position, ready for the crown to be attached.

If a root-filled tooth is not completely broken down, it may be possible to build it up again using filling material. This 'core' is then prepared in the same way as a natural tooth and the impressions are taken.

Crowns can be made of a variety of different materials and new materials are continually being introduced. Some of the most popular options are listed below.

Porcelain bonded to precious metal: this is what most crowns are made from. A precious metal base is made and then porcelain is applied in layers over it.

Porcelain crowns: these crowns are made entirely out of porcelain and are not as strong as bonded crowns, but they can look very natural and are most often used for front teeth.

All-ceramic crowns: this modern technique offers a metal-free alternative, which can give the strength of a bonded crown and the appearance of a porcelain crown. Therefore it is suitable for use in all areas of the mouth.

Porcelain and composite: porcelain and composite resin materials can sometimes look the most natural. However, these crowns are not as strong as bonded metal crowns.

Glass: these crowns look very natural and are used on both front and back teeth.

Gold alloy crowns: gold is one of the oldest filling materials. Today it is used with other metal alloys to increase its strength, which makes it a very hardwearing restoration. These crowns are white or gold in colour.

The dentist will prepare the tooth to the ideal shape for the crown. This will involve removing most of the outer surface, and leaving a strong inner core. The amount of the tooth removed will be the same as the thickness of the crown. Once the tooth is shaped, the dentist will take an impression (mould) of the prepared tooth, one of the opposite jaw and possibly another to mark the way you bite together.

The impressions will then be given to the dental technician, along with an appropriate shade and other information needed for the crown to be made.

A temporary crown will be made so that you can use the tooth while you wait for the crown to be made. This crown may be more noticeable but is only a temporary measure.

When we are happy with the fit and appearance of the new crown it will be fixed in place with special dental cement or adhesive. The cement forms a seal to hold the crown in place.

You will need to have at least two visits: the first for the preparation, impression, shade taking and fitting the temporary crown; and the second to fit the permanent crown. There will usually be about 1 to 2 weeks in between appointments.

A local anaesthetic is used and the preparation should feel no different from a filling. If the tooth does not have a nerve, and a post crown is being prepared, then a local anaesthetic may not be needed.

The crown will be made to match your other teeth exactly. The shade of the neighbouring teeth will be recorded, to make sure that the colour looks natural and matches the surrounding teeth.

Because the shape of the crown will be slightly different from the shape of your tooth before it was crowned, you may be aware of it to begin with. Within a few days it should feel fine, and you will not notice it. The crown may need some adjustment if your bite does not feel comfortable, so you should ask your dentist to check and adjust it.

How long your crown lasts depends on how well you look after it. The crown itself cannot decay, but decay can start where the edge of the crown joins the tooth. Therefore, it is important to keep this area just as clean as you would your natural teeth in order to prevent decay affecting the crown.

Properly cared for crowns should last for many years. Your dentist will be able to tell you how long the crown may be expected to last.