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About
the objective of the current study is to compare the dentofacial effects of the mini-plate anchored Herbst appliance Versus the dentally anchored Twin force bite corrector Appliance in Young Adult Class II Orthodontic Patients with retruded mandible.
Full description
Study design:
Prospective randomized clinical study.
Study setting and population:
This study will be conducted on twenty orthodontic patients. The number of patients was dependent on a power study.
Sample size calculation was based on the observed average effect size derived from previous article addressing "the effect of skeletally anchored Forsus FRD using miniplates for the treatment of Class II malocclusion.
Intervention:
The orthodontic patients involved in this study will be treated by using fixed orthodontic appliances followed by one of two different types of fixed functional appliances; the type IV Herbst appliance (miniplate anchored appliance) and the Twin Force Bite Corrector (dentally anchored appliance). According to the type of the fixed functional appliance the patients will be randomly divided into two groups. The random allocation will be achieved by computer software:
Records:
The following diagnostic records will be taken for each patient before and after the fixed functional orthopedic treatment:
Treatment steps:
As for Group Ι:
As for Group ΙΙ:
Data management and analysis:
The collected data will be tabulated statistically analyzed using Statistical Package for Social Sciences (SPSS, version 18, Inc, and Chicago, Ill).
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Inclusion criteria
Participants will be selected based on the following inclusion criteria:
Exclusion criteria
Primary purpose
Allocation
Interventional model
Masking
20 participants in 2 patient groups
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Data sourced from clinicaltrials.gov
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