Long term stability of treatment outcome after fixed orthodontic treatment with or without premolar extraction

ConclusionThere was significant relapse in the alignment of maxillary and mandibular anterior teeth with a change in Little’s irregularity score, intercanine width and ABO scores from post-treatment to post-retention. The comparison of relapse in extraction and non-extraction groups did not show significant differences from T1 to T2. Therefore, similar relapse may be expected irrespective of treatment plan.

Source: Orthodontic Waves - January 8, 2019 Category: Dentistry Source Type: research