Mandibular retrognathism. Anomalies of jaw-cranial base relationship
Conditions
Interventions
Intervention name: Twin Block functional appliance
Intervention Description:
This appliance is employed in order to treat mandibular retrognathism. The patient should have full cooperation i
Treatment - Other
Intervention name: Twin Block functional appliance
Intervention Description:
This appliance is employed in order to treat mandibular retrognathism. The patient should have full cooperation
Sponsors
Kerman University of Medical Sciences
Eligibility
Sex/Gender
All
Age
9 Years to 16 Years
Inclusion criteria
Inclusion criteria: Inclusion criteria: Subjects with bilateral molar and canine class II relationship; Skeletal class II relationship measured on cephalometric radiograph (ANB > 3.5); Mandibular retrognathism measured on cephalometric radiograph (SNB<78); Patients with normal or decreased U1-SN angle; Patients of growing age (9-16 years) who were in CS-2, CS-3 and CS-4 of cervical vertebral maturation stage, according to Baccetti et al Excusion criteria: Patients with any craniofacial anomaly or syndrome; Noncompliant patients who failed to wear the appliance for more than 16hours/day ; Subjects with history of orthodontic treatment.
Exclusion criteria
Exclusion criteria:
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Mandibular Ramus Lenght. Timepoint: Pre intervention and Post intervention. Method of measurement: Evaluation of lateral cephalometry.;SNA angle. Timepoint: Pre intervention and Post intervention. Method of measurement: Evaluation of lateral cephalometry.;SNB angle. Timepoint: Pre intervention and Post intervention. Method of measurement: Evaluation of lateral cephalometry.;ANB angle. Timepoint: Pre intervention and Post intervention. Method of measurement: Evaluation of lateral cephalometry.;GoGn-SN angle. Timepoint: Pre intervention and Post intervention. Method of measurement: Evaluation of lateral cephalometry.;Co-A distance. Timepoint: Pre intervention and Post intervention. Method of measurement: Evaluation of lateral cephalometry.;Co-Gn distance. Timepoint: Pre intervention and Post intervention. Method of measurement: Evaluation of lateral cephalometry.;Go-Gn distance. Timepoint: Pre intervention and Post intervention. Method of measurement: Evaluation of lateral cephalometry.;U1-SN angle. Timepoint: Pre intervention and Post intervention. Method of measurement: Evaluation of lateral cephalometry.;IMPA angle. Timepoint: Pre intervention and Post intervention. Method of measurement: Evaluation of lateral cephalometry. | — |
Secondary
| Measure | Time frame |
|---|---|
| SNA angle. Timepoint: Pre and Post treatment. Method of measurement: Evaluation of lateral cephalometry.;SNB angle. Timepoint: Pre and Post treatment. Method of measurement: Evaluation of lateral cephalometry.;ANB angle. Timepoint: Pre and Post treatment. Method of measurement: Evaluation of lateral cephalometry.;Go-Gn angle. Timepoint: Pre and Post treatment. Method of measurement: Evaluation of lateral cephalometry.;Co-A distance. Timepoint: Pre and Post treatment. Method of measurement: Evaluation of lateral cephalometry.;Co-Gn distance. Timepoint: Pre and Post treatment. Method of measurement: Evaluation of lateral cephalometry.;Ramus lenght. Timepoint: Pre and Post treatment. Method of measurement: Evaluation of lateral cephalometry.;Go-Gn distance. Timepoint: Pre and Post treatment. Method of measurement: Evaluation of lateral cephalometry.;U1-SN angle. Timepoint: Pre and Post treatment. Method of measurement: Evaluation of lateral cephalometry.;IMPA angle. Timepoint: Pre and Post treatment. Method of measurement: Evaluation of lateral cephalometry. | — |
Countries
Iran (Islamic Republic of)
Contacts
Public ContactParisa Kalantari Khandani
Kerman University of Medical Sciences
Outcome results
None listed