Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
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.
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Extrusion arch | Experimental | Hand made stainless steel extrusion arch wire (0.016x0.22") |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Extrusion arch | Device | 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 |
| Measure | Description | Time Frame |
|---|---|---|
| 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 | 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. | up to 6 months |
| Measure | Description | Time Frame |
|---|---|---|
| change in the SN' to Mandibular plane angle | measuring the change in the angle between SN' to Mandibular plane angle, using lateral cephalometric xray | up to 6 months |
| change in the palatal to Mandibular plane angle |
Not provided
Inclusion Criteria:
Exclusion Criteria:
Not provided
Not provided
Not provided
Not provided
Not provided
| Name | Affiliation | Role |
|---|---|---|
| Tasneem Y Hammad, BDS | Alexandria University | Principal Investigator |
| Hanan Ismail, PHD | Alexandria University | Study Director |
| Wessam Marzouk, PHD | Alexandria University | Study Chair |
| Hassan Moussa, PHD | Alexandria University | Study Chair |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Alexandria faculty of Dentistry | Alexandria | 21527 | Egypt |
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
measuring the change in the angle between the palatal to Mandibular plane angle, using lateral cephalometric xray
| 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. | up to 6 months |