At Castle Dental, one of the services we offer is rebuilding worn teeth. All our patients notice a big difference before treatment and after treatment. Tooth wear and loss of tooth structure can be caused by numerous things.

Tooth decay

Tooth decay is caused by bacteria from plaque feeding on sugar. Over time the bacteria release toxins and acid causing the tooth to rot. Signs and symptoms of this include

  • bad breath
  • Black or brown teeth
  • broken tooth due to rotting from underneath the teeth
  • and in severe cases where the tooth has rotted into the nerve of the tooth pain and abscesses


  • Erosion of teeth is caused by acid eroding the biting surfaces away. Acid is usually diet related and most commonly from soft drinks, energy drinks or fruit juice.
  • It can also be caused from stomach acids as a result of reflux or bulimia.
  • In most cases erosion is painless until there is so much erosion that teeth are worn close to the nerve of the tooth.


  • Attrition is the actual wearing of teeth.
  • It can be exacerbated by bruxism (night grinding) and clenching.
  • It is most commonly seen in baby teeth, but can also be seen in adults.
  • We often see attrition together with jaw joint pain, tension headaches, migraines, neck and back aches, and poor posture.


  • Abfraction is the wearing of tooth at the gum level.
  • It is always caused by the clenching of teeth resulting in stress spots on the gum line.
  • Abfraction wear facets can cause extreme sensitivity to cold drinks or ice.


  • Abrasion is caused by heavy handed brushing. Abrasion wear spots can lead to mild sensitivity to cold water and also sensitivity when the toothbrush touches the spot

In most cases of advanced tooth decay, it is usually a combination of all of the above.


The steps in restoring the worn teeth in theory are simple:

  1. Work out the cause/s of the tooth decay or tooth wear
  2. Stop, manage and treat the cause of the worn spots/ area.
  3. Once stabilised and the wear is managed we can then restore the teeth.

Restoring the teeth can be done with white fillings, porcelain or gold fillings or a combination of all three. They can also be a combination of fillings, onlays and crowns. The material used to restore the tooth will depend on the amount of tooth structure worn, heaviness of the bite and of course, aesthetic concerns.

Visit our before and after gallery