]>
IRCT2017101036705N1 IRCT 2017-11-09 Kerman University of Medical Sciences Treatment effects of Twin Block appliance in different cervical vertebral maturation stages amongst patients with mandibular retrognathism Evaluation of the treatmaent effects of the Twin Block appliance in different cervical vertebral maturation stages amognst patients with mandibular retrognathism referring to an orthodontics office in Kerman, 2017 2017-10-23 anticipated 46 Complete https://irct.ir/trial/27365 interventional Randomization: N/A, Blinding: Not blinded, Placebo: Not used, Assignment: Single, Purpose: Treatment. N/A Mandibular retrognathism. Intervention name: Twin Block functional appliance Intervention Description: This appliance is employed in order to treat mandibular retrognathism. The patient should have full cooperation in using the device and wear the device at least 16 hours a day. The device will be used as long as the patient's overjet is zero, and the treatment effects of intervention is investigated by lateral cephalographs of the patients before and after the treatment. This study does not have a control group..
public Parisa Kalantari Khandani
Next to Shafa hospital, End of Shafa St, Jomhouri Blvd, Kerman, Iran
Kerman Iran (Islamic Republic of) +98 342454554 kalantary_parisa@yahoo.comkalantari.parisa1988@gmail.com Kerman University of Medical Sciences scientific Parisa Kalantari Khandani
Next to Shafa hospital, End of Shafa St, Jomhouri Blvd, Kerman, Iran
Kerman Iran (Islamic Republic of) +98 342454554 kalantary_parisa@yahoo.com kalantari.parisa1988@gmail.com kalantary.mahsa@yahoo.com Kerman University of Medical Sciences Iran (Islamic Republic of) 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. 9 years 16 years Both K07.1 Anomalies of jaw-cranial base relationship 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 in using the device and wear the device at least 16 hours a day. The device will be used as long as the patient's overjet is zero, and the treatment effects of intervention is investigated by lateral cephalographs of the patients before and after the treatment. This study does not have a control group. 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. 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. Kerman University of Medical Sciences Approved 2017-10-31 Kerman University of Medical Sciences Next to Shafa hospital, End of Shafa St, Jomhouri Blvd, Kerman, Iran Kerman Iran (Islamic Republic of)