Über Zahnerosion

Acid erosion and abrasion

In everyone, some degree of tooth wear occurs within a lifetime but, in a proportion of individuals, the wear reaches pathological levels. Prof Martin Addy, University of Bristol 2 Photo of Dr Martin Addy

Overview

The 20th century saw huge advances in dentistry and major improvements in oral health. Caries and the periodontal diseases have been brought under control, fewer teeth are restored or extracted and the longevity of the natural dentition has been extended for many more people. Improved oral hygiene has been a major contributor to this — great news for both public health and individual's quality of life.

However, dental practitioners are now seeing a paradox: these healthier longer-lasting teeth are showing signs of increasing tooth wear. In Europe, dental professionals consider acid erosion as the primary cause. 1

Acid erosion is strongly linked to the consumption of acidic foods and drinks. Acids demineralise and soften the tooth surface making it more susceptible to abrasion, particularly by toothbrushing with or without toothpaste. 1 and 2

In its early stages tooth wear is often thought to be harmless. However as it progresses tooth wear can result in dentine hypersensitivity, loss of tooth shape and colour, and may require complex restorative intervention. Yet many people remain unaware of the consequences of tooth wear and the measures that can be taken to protect teeth from this slow and insidious process.

At the 2005 FDI World Dental Congress international experts reviewed the prevalence, aetiology, diagnosis, pathophysiology, and management of tooth wear in front of a record audience of over 900 dental professionals. There was agreement that acid erosion is becoming a significant issue.

  1. Bartlett DW. The role of erosion in tooth wear: aetiology, prevention and management Int Den J 2005; 55: 277-284.
  2. Addy M. Tooth brushing, tooth wear and dentine hypersensitivity - are they associated? Int Den J 2005; 55: 261-267.