Abfractions and abrasions are nearly identical, their treatment options are often the same, and bruxism (tooth grinding) and improper alignment of the jaws and/or teeth (malocclusion) must be ruled out for both.
An abfraction is an angular notch at the gumline caused by bending forces applied to the tooth.
An abrasion is a rounded notch at the gumline that are generally not as angular and sometimes have more of a saucered appearance.  With abrasions, it is believed that heavy toothbrushing forces applied to exposed tooth roots may cause a rounded notch at the gumline.  Abfractions, on the other hand, are caused by one of two things:
  • Chronic heavy forces on teeth, such as may be produced by clenching or grinding the teeth (bruxing).
  • Normal forces on teeth which are improperly aligned (malocclusion).
Abfractions that have been present for awhile may become rounded through the abrasive movement a hard toothbrush agressive brushing and if the teeth are continually exposed to an acidic environment, which is known to soften tooth structure.

For information on prevention and treatment of tooth defects, contact us today at 727-586-2681
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