144 Cranford St St Albans, Christchurch 8014, New Zealand

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Crowns & Bridges

Porcelain Crowns

Protect and keep badly decayed or fractured teeth.

Ceramic bridge on plaster model
The Problem
The Solution
Advantages
Disadvantages
Alternatives
The Problem
  •  Badly decayed teeth
  •  Fractured teeth
  •  Need to protect and strengthen teeth
The Solution

A crown (often called a cap) covers the tooth and restores it to its original shape and size.

The procedure for creating a CEREC crown is as follows. Decay is removed and the tooth is shaped to fit a crown. The tooth is then prepared for scanning. Once scanned, a 3 dimensional image is created of the prepared tooth and a crown is designed on the CEREC machine to fit precisely over the tooth. Once designed, the crown is milled from a block of porcelain and this is cemented onto the tooth.

Alternatively a crown can be constructed in the lab. In this case the decay is removed and the tooth is shaped to fit a crown. A highly accurate impression or mould is made of the prepared surface. This mould is used to create a model of the tooth and this is then sent to a laboratory that will create a gold or porcelain (tooth coloured) crown. The crown is then cemented onto the prepared surface of the tooth.

Advantages

Crowns are incredibly strong due to the fact that they are created from a solid block of porcelain with a CEREC machine or alternatively in a laboratory. This protects and strengthens the remaining tooth structure. In the hands of a skilled dentist, a crown will fit almost perfectly onto the prepared surface of the tooth, reducing the size of the seam between the crown and the tooth. This helps keep decay from eventually developing under the crown.

For the best result a crown should be placed before tooth decay advances to a degree where the tooth structure is at risk of fracture. This can often help prevent the expense and discomfort of root canal therapy in the future. It can also prevent the possibility that a fractured tooth may need to be removed, requiring the necessity of a bridge or implant to replace the missing tooth.

Disadvantages

Crowns are excellent restorations and have few disadvantages. They are highly durable, but they will eventually need to be re-cemented or replaced due to normal wear.

Occasionally, a tooth may still need root canal therapy after being crowned. However, this indicates that the interior of the tooth was already infected and would have eventually needed root canal therapy anyway.

Alternatives

In the event that a tooth is so decayed or fractured that it needs to be removed, the best alternatives to a crown are bridges and implants that replace the missing tooth.

If you are suffering from any missing or severely damaged teeth, contact our dynamic team to arrange an appointment with one of our experienced dentists.

Porcelain Fixed Bridges

A great way to replace missing teeth

Technical shots on a dental prothetic laboratory
The Problem
The Solution
Advantages
Disadvantages
Alternatives
The Problem
  •  A missing tooth or teeth
  •  Potential bite and jaw joint problems from teeth shifting to fill the space
  •  The "sunken face" look associated with missing teeth
  •  Desire to improve chewing ability
  •  Desire for a more permanent solution than dentures
The Solution

A bridge is a single appliance that is generally attached to two teeth on each side of the space where a tooth is missing. An artificial tooth attached in the middle of the bridge fills in the gap where the missing tooth was. The teeth on either side of the gap are prepared for crowns and a highly accurate impression or mould is made of the prepared area. This mould is used to create a gold or porcelain (tooth coloured) bridge in a special laboratory. The bridge is then cemented onto the prepared surface of the teeth, effectively creating the appearance of a "new" tooth.

In some instances, a resin-bonded bridge may be used. In this case, the two teeth on each side of the gap are not prepared for crowns. Instead, the bridge consists of a false tooth with metal brackets on the back of each side of the gap. The brackets are attached to the backs of the real teeth on each side

Advantages

Unlike dentures, a fixed bridge is never removed. It is stable in the mouth and works very similar to natural teeth. By filling the gap and stopping the movement of other teeth, a fixed bridge is an effective investment, providing better chewing ability, heading off jaw joint problems and saving money that would otherwise might be spent on future dental treatment.

Disadvantages

Fixed bridges are excellent restorations and have few disadvantages. They are highly durable, but they will eventually need to be re-cemented or replaced due to normal wear.

Alternatives

In the event that the use of a fixed bridge is not feasible, the best alternative is a dental implant.If you feel bridges may be the solution for you, contact our caring team to arrange a consultation.

Are you ready for a new smile?

Take the first step and book an appointment today.