An interventional study of Extrusion arch in Anterior Openbite, sponsored by Alexandria University. Completed at 1 site in Egypt. Open to participants aged 17 Years to 30 Years. Per ClinicalTrials.gov, last updated 2022-07-15.
Sponsored by Alexandria University · Not applicable, Interventional, and Treatment
The aim of the current study was to evaluate and quantify the cephalometric changes produced by maxillary and mandibular extrusion arches in closure of anterior open bite in non-growing patients.
Alexandria University is the lead sponsor of 586 studies on the registry; 127 are open to participants now.
Of its 13 completed or terminated interventional studies of FDA-regulated products, 0 (0%) have results posted.
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Exclusion Criteria:
Hand made stainless steel extrusion arch wire (0.016x0.22")
Device: Extrusion arch
one couple force system is applied; a custom-made extrusion wire from 0.016x0.022 stainless steel wire with helical bends placed 2-5 mm mesial to the molar tube placed in the upper and lower arches and tied distal to the lateral incisors
angular and vertical linear effects on incisors
Extrusion of upper and lower incisors measured from: incisal edge, centroid point and apex to the palatal and mandibular planes for the upper and lower incisors respectively. Angles between long axis of upper incisor to SN plane and palatal plane, Angle between long axis of lower incisor and mandibular plane using lateral cephalometric xray
Time frame: up to 6 months
angular and vertical linear effects on first molars
For the first molars: Angular measurements between the long axis of the measuring jigs and the palatal plane and mandibular plane for the upper and lower molars, respectively. Vertical measurements: perpendicular vertical distance from the measuring jigs to the palatal and mandibular planes for the upper and lower molars, respectively, using lateral cephalometric xray.
Time frame: up to 6 months
change in the SN' to Mandibular plane angle
measuring the change in the angle between SN' to Mandibular plane angle, using lateral cephalometric xray
Time frame: up to 6 months
change in the palatal to Mandibular plane angle
measuring the change in the angle between the palatal to Mandibular plane angle, using lateral cephalometric xray
Time frame: up to 6 months
change in the Anterior facial height
measuring the change in the vertical distance between Nasion and Menton, using lateral cephalometric x-ray.
Time frame: up to 6 months
This study is completed, as verified in Jul 2022. You cannot join it, but the record below documents what was studied.
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