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Effectiveness and stability of anterior open bite correction using temporary skeletal anchorage : comparison to surgical outcomes

University of North Carolina at Chapel Hill. Library
Publication Date
  • Medicine


The skeletal and dental changes that occur following the intrusion of maxillary posterior teeth with temporary skeletal anchorage (TSA) and the stability of these changes over time were assessed in twelve patients (1 male, 11 females) with anterior open bite. A comparative sample of patients treated with maxillary osteotomy was frequency matched based on age and gender. Lateral cephalograms were obtained before treatment/surgery, at the end of treatment/post-surgery, and at least 6 months following the completion of treatment. All pretreatment measurements except overbite were similar, on average, between the two treatment groups. Positive overbite was achieved for all patients treated with TSA's (Pre-tx OB [mean] = -1.0mm, Post-tx OB [mean] = 2.7mm). Both groups showed a similarly small average change during the follow-up time period. Overbite correction via intrusion of maxillary posterior teeth using TADs appears to be an effective and stable treatment modality.

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