An interventional study of clear aligners and traditional treatment Fixed appliances with class II elastics. in Malocclusion and Class II Malocclusion, sponsored by Hama University. Recruiting at 1 site in Syria. Open to participants aged 15 Years to 20 Years. Per ClinicalTrials.gov, last updated 2026-09-16.
Sponsored by Hama University · Not applicable, Interventional, and Treatment
Patient with class ii division 1 malocclusion who have mild increased overjet will be treated in this study. The efficacy of clear aligners in the treatment of Class II division 1 Malocclusion Using Intermaxillary Elastics will be assessed. The skeletal, dental and soft tissues changes resulted by this intervention will be studied and compared with the results of Traditional treatment with fixed appliances.
There are two group:
Patient with class ii division 1 malocclusion who have mild increased overjet will be treated in this study. The efficacy of clear aligners in the treatment of Class II division 1 Malocclusion Using Intermaxillary Elastics will be assessed. The skeletal, dental and soft tissues changes resulted by this intervention will be studied and compared with the results of Traditional treatment with fixed appliances.
There are two group:
phase Intervention/treatment Condition or disease Not applicable Other: clear aligners Technique with class ii elastics. Other: fixed multibracket appliances with class ii elastics Malocclusion
Class ii Division 1 malocclusion
323 studies on the registry are indexed under Malocclusion; 85 are open to participants now.
This study's planned enrollment of 24 is below the median of 37 across 242 interventional studies indexed under Malocclusion.
Browse Malocclusion studies →Hama University is the lead sponsor of 9 studies on the registry; 4 are open to participants now.
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Exclusion Criteria:
clear aligners technique A group of patients in which participants will be undergo to clear aligners treatment with class II elastics ( clear aligners will be applied to the upper and lower arch, then a class II elastics 1\\4 and 6,5 oz will be use from the precision-cut Hook on the maxillary aligner to the button of mandibular first molar
Device: clear aligners
A group of patients in which participants will be undergo to the fixed multibracket treatment (with slot size 0.022 × 0.028 and MBT prescription , after completing leveling and alignment , Elastics will be applied from the hooks of canines brackets to the hooks of lower first molar when the 0.019× 0.025-inch stainless steel archwires placed.
Device: traditional treatment Fixed appliances with class II elastics.
clear aligners will be applied to the upper and lower arch, then a class II elastics 1\\4 and 6,5 oz will be use from the precision-cut Hook on the maxillary aligner to the button of mandibular first molar
Agroup of patients in which participants will be undergo to the fixed multibracket treatment (with slot size 0.022 × 0.028 and MBT prescription , after completing leveling and alignment , Elastics will be applied from the hooks of canines brackets to the hooks of lower first molar when the 0.019× 0.025-inch stainless steel archwires placed.
Change in the SNA angle
This angle the represents the position of the upper jaw in the cephalometric analysis in the anteroposterior direction. Lateral cephalograms will be taken and this angle is going to be measured in degrees.
Time frame: : T0:1 day before the beginning of treatment . T1: when a normal overjet and canines class I relationships achieved (expected to be within 4-6 months in the exp. Group and 12 months in the control group
change in the SNB angle
This angle the represents the position of the lower jaw in the cephalometric analysis in the anteroposterior direction. Lateral cephalograms will be taken and this angle is going to be measured in degrees.
Time frame: : T0:1 day before the beginning of treatment . T1: when a normal overjet and canines class I relationships achieved(expected to be within 4-6 months in the exp. Group and 12 months in the control group)
change in ANB angle
This angle the represents the spatial relationship between the upper and lower jaws in the cephalometric analysis in the anteroposterior direction. Lateral cephalograms will be taken and this angle is going to be measured in degrees.
Time frame: T0:1 day before the beginning of treatment . T1: when a normal overjet and canines class I relationships achieved (expected to be within 4-6 months in the exp. Group and 12 months in the control group)
change in SN.POG angle
This angle the represents the position of the chin bone in the cephalometric analysis in the anteroposterior direction. Lateral cephalograms will be taken and this angle is going to be measured in degrees.
Time frame: : T0: 1 day before the beginning of treatment . T1: when a normal overjet and canines class I relationships achieved (expected to be within 4-6 months in the exp. Group and 12 months in the control group)
change in the mandibular length [
Amount of distance measured from the Co point to Gn point in the cephalometric analysis. Lateral cephalograms will be taken and this angle is going to be measured in degrees.
Time frame: T0: 1day before the beginning of treatment . T1: when a normal overjet and canines class I relationships achieved (expected to be within 4-6 months in the exp. Group and 12 months in the control group)
change in SN.PP angle [
This angle the represents the amount and direction of rotation of the upper jaw in the cephalometric analysis. Lateral cephalograms will be taken and this angle is going to be measured in degrees.
Time frame: T0: 1 day before the beginning of treatment . T1: when a normal overjet and canines class I relationships achieved achieved (expected to be within 4-6 months in the exp. Group and 12 months in the control group)
change in MP.SN angle
This angle the represents the amount of backward rotation of the lower jaw in the cephalometric analysis. Lateral cephalograms will be taken and this angle is going to be measured in degrees.
Time frame: T0: 1 day before the beginning of treatment . T1: when a normal overjet and canines class I relationships achieved (expected to be within 4-6 months in the exp. Group and 12 months in the control group)
change in overjet
Represents The distance between the most anterior point on the lower incisor to the most anterior point on the upper incisor in the cephalometric analysis.
Time frame: : T0: 1 day before the beginning of treatment . T1: when a normal overjet and canines class I relationships achieved (expected to be within 4-6 months in the exp. Group and 12 months in the control group)
change in overbite
Amount of coverage the upper incisor to lower incisor in the vertical plane in the cephalometric analysis.
Time frame: T0: 1 day before the beginning of treatment . T1: when a normal overjet and canines class I relationships achieved (expected to be within 4-6 months in the exp. Group and 12 months in the control group)
Plan to share: No
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