Home > General > Abfraction lesion under gingival tissue – final proof?

Abfraction lesion under gingival tissue – final proof?




 Loss of cervical tissue around teeth has been linked to the presence of excessive occlusal loading.

These are known as abfraction lesions, defined as “Loss of tooth structure, usually in a wedge-shaped pattern in the cervical area of the tooth, attributed to flexure and fatigue in an area away from the point of loading (usually cervical).” The true aetiology of these has been called into question, with some recent research purporting to show that a toothbrush and abrasive dentifrice are required for them to develop. 

A case I saw this week seems to contradict such an assertion – this aesthetic case need a little gingival recontouring around the anteriors:

…. so I started to work on the lateral first and look what has appeared! This photo was taken moments after removing the gingival tissue, and it hasn’t been touched by a bur: 

Now, this looks suspiciously like an abfraction lesion to me, and it has has been subjected to significant occlusal loading palatally from a deep overbite Class II div 2 situation for many years. Is this final proof that such things really do exist – it can’t possibly be toothbrush abrasion since this is the first time it’s ever seen the light of day. Any other ideas, or do you think I have found something significant?

  1. Dr Sanjay Jamdade India
    September 5, 2011 at 3:08 am

    Well for those who refuse to acknowledge that abfractions due to occlusal trauma do exist, this picture will be an eye opener! Excellent documentation! Keep up the good work!

  2. November 2, 2011 at 7:02 am

    i’m having problem of Abfraction and due to which i don’t have a pretty smile…:(

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