Über Zahnerosion

Acid erosion and abrasion

Erosion is an insidious process that patients do not become aware of until it reaches an advanced stage, so the early clinical detection by dental professionals is of utmost importance. 1

Signs and diagnosis

Everyone with natural teeth is likely to develop some signs of tooth wear, but many patients are unlikely to be aware that it is happening to them until it has reached an advanced stage.

Currently, dental erosion normally only reaches a diagnostic threshold when restorative dentistry is indicated. Improving recognition of the early signs and symptoms is crucial if effective preventative measures are to be taken.

The pathophysiology of acid erosion

1. Sensitivity As dentine becomes exposed, an occasional slight twinge may be felt when consuming hot, cold or sweet foods and drinks Early signs arrow
2. Discolouration Teeth can have a slight yellow appearance as the dentine shows through
3. Rounded Teeth A rounded 'sandblasted' look on the surface and edges of the teeth
4. Transparency Front teeth may appear slightly transparent near their biting edges Late stages
5. Advanced Discolouration Teeth may show a darker yellow appearance which is the exposed dentine showing through
6. Cracks Small cracks and roughness may be present at the edges of the teeth
7. Severe Sensitivity As dentine continues to becomes exposed over time, teeth can suffer from severe dentine hypersensitivity
8. Cupping Small dents may appear on the chewing surface of the teeth — at this stage any fillings may appear to rise up

At any stage of dental erosion, dentine hypersensitivity may occur. This could range from infrequent twinges during consumption of hot, cold or sweet foods, through to fairly continuous sensitivity readily provoked by the mildest of stimuli. Occasional sensitivity may well go unreported by the patient during routine examinations.

  1. Zero DT, Lussi A. Erosion - chemical and biological factors of importance to the dental practitioner. int Den J 2005: 55: 285-290.