Effects of Conventional Versus Skeletally Anchored Facemask in Treatment of the Prepubertal Skeletal Class III Patients
Maxillary Deficiency, Maxillary Retrusion
About this trial
This is an interventional treatment trial for Maxillary Deficiency
Eligibility Criteria
Inclusion Criteria:
- Growing Class III patients with a prepubertal stage of skeletal maturity according to the cervical vertebral maturation method.
- Skeletal Class III malocclusion with maxillary deficiency (ANB, <0°; N perp-A<1mm) with or without mild mandibular prognathism.
- Late mixed or early permanent dentition at the start of treatment characterized by a Wits appraisal of -1 mm or less and an Angle Class III molar relationship or anterior crossbite.
- Vertically normal growth pattern determined by cephalometric radiographs.
- Patients are free from developmental or congenital conditions such as cleft lip/palate or other craniofacial anomalies.
- No previous orthodontic treatment.
Exclusion Criteria:
- Poor oral hygiene or periodontally compromised patient.
- Patients with craniofacial anomalies or previous history of trauma, bruxism, or parafunctions.
- Previous orthodontic treatment.
Sites / Locations
- Al-azhar university- Faculty of Dental MedicineRecruiting
Arms of the Study
Arm 1
Arm 2
Active Comparator
Experimental
conventional dentally anchored maxillary protraction
skeletally anchored maxillary protraction
A petit facemask will be used for maxillary protraction along with a facemask splint (two acrylic bite blocks connected through a transpalatal arch). a force of 380 gm to 400 gm will be applied through the extra-oral elastics the will be attached to the facemask on one side and to the facemask splint on the other side.
A petit facemask will be used for maxillary protraction along with a facemask splint (two acrylic bite blocks connected through a transpalatal arch) in addition, two miniscrews will be inserted in the anterior region of the palate one on each side of the midline to provide skeletal anchorage for the facemask splint. a force of 380 gm to 400 gm will be applied through the extra-oral elastics the will be attached to the facemask on one side and to the facemask splint on the other side.