Evidence I utilize to make treatment decisions.
Here is a recent article on the effectiveness of early treatment of class II malocclusions with the (insert appliance here) Twin Block appliance. I believe it can be summarized with the following excerpt:
“Data analysis showed that there was no differences between those who received early Twin-block treatment and those who had 1 course of treatment in adolescence with respect to skeletal pattern, extraction rate, and self-esteem. Those who had early treatment had more attendances, received treatment for longer times, and incurred more costs than the adolescent treatment group. They also had significantly poorer final dental occlusion. Conclusions: Twin-block treatment when a child is 8 to 9 years old has no advantages over treatment started at an average age of 12.4 years. However, the cost of early treatment to the patient in terms of attendances and length of appliance wear is increased.”
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