Research studies into the overall treatment outcomes for orthodontic patients has been reviewed with the following conclusions:
1. Early orthodontic treatment does not provide any better treatment outcomes. Therefore, there are no distinct treatment advantages of early treatment.
2. Prolonged Phase I (Early) and Phase II treatment leads to patient "burn out" with less patient compliance resulting in inadequate oral hygiene care and orthodontic therapy over time.
3. When treatment efficiency as assessed, combining Phase I & Phase II therapy less efficient when compared to Phase II treatment alone with its corresponding shorter overall treatment time.
4. In reviewing orthodontic retention for Phase I patients, there are more retention problems in the younger patients as reported by Wheeler (AJO 2002) and Weislander (AJO 1993).
5. A clinical analysis of the "Best Treatment Time" for patients reveals that the ideal time is between the ages of 10-13 immediately following the exfoliation of the E's and in conjunction with the eruption of the 12-year molar teeth.
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