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2017 Annual Session Conference

AS17B21C - Unexpected Complications of Lower Fixed Retainers

Apr 23, 2017 8:50am ‐ Apr 23, 2017 9:10am


The purpose of this lecture is to discuss the controversial issue of long-term stability of orthodontic treatment results. Long-term stability is often considered to be a myth. Therefore, long-term retention with fixed retainers is indicated as one of the approaches to tackle this problem. Fixed retainers, despite many advantages, do have some disadvantages as we may encounter a reasonable number of common complications, such as bond failure or wire fracture. In addition to that, unexpected complications may occur, some with severe manifestations that require orthodontic retreatment and reconstructive periodontal surgery.

Learning Objectives:

  • Define the problems that may occur during the retention period.
  • Recognize and distinguish the types of unexpected complications of lower fixed retainers.
  • Assess the risks associated with unexpected complications and propose necessary treatment.


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