The lifetime of complex restorations, and the teeth The lifetime of complex restorations, and the teeth that support them can be greatly extended by proper maintenance: Your restorations should have smooth flowing contours and easily cleansable shapes to allow thorough cleaning with a toothbrush and either dental tape, "superfloss", or an interdental brush. Careful cleaning of the gum at the neck of the tooth will not cause the gum to recede - on the contrary it will prevent recession from taking place. The main cause of receding gums is the inflammation resulting from plaque accumulation around the crown - gum margin. Regular hygienist appointments will ensure that gums are healthy and well maintained.

Removing the plaque from around the neck of crowned teeth and under the pontic (false tooth) of a bridge will also help to prevent decay and enhance the shape and contour of the gum. This is also true for temporary restorations; correct maintenance of the gum before the final crown is placed will ensure that the level of the gum remains stable when the final restoration is cemented. However when restorations are cemented with weak temporary cement try to avoid dislodging them with the dental tape, by removing the tape from between the teeth by pulling it out at the side.

Temporary and porcelain crowns are weaker than metal crowns. Chewing hard sweets or toffees, or habits such as fingernail biting, or pencil chewing are obviously bad for teeth, but they are even worse for crowned teeth, and can lead to fracture of the crown, root, or porcelain.

Crowns will not protect teeth from decay so it is important to avoid frequent sugary snacks, or sugary drinks. Initially, you may expect a certain amount of sensitivity to cold, and occasionally, hot foods and drinks. Extreme sensitivity is unusual but may be the result of pre-existing inflammation of the dental nerve. This will normally settle over a matter of a few days or weeks. Smearing de-sensitising toothpaste around the neck of the tooth before going to bed may help in some situations. However if the inflammation and sensitivity worsens, further treatment may be required; in this unlikely event please let us know.

Implant retained crowns and bridges need cleaning in just the same way as conventional tooth-supported crowns and bridges. Although implants are immune to decay, plaque accumulation around the implant as it emerges through the surrounding gum will still cause inflammation.

Regular examination and an appointment with our hygienists for a scale and polish will ensure that any potential problems are identified early, and that you are doing all that can be done to keep your teeth and gums healthy and your new restorations looking good.

For further information please see information on Preventive Dentistry and Maintaining Dentures.