An interventional study of Discision in Bimaxillary Protrusion and Class II Div 1 Malocclusion, sponsored by Al-Azhar University. Enrolling by invitation at 2 sites in Egypt. Open to participants aged 17 Years to 24 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-11-05.
Sponsored by Al-Azhar University · Not applicable, Interventional, and Treatment
The effectiveness of discision in accelerating orthodontic canine retraction will be evaluated during clear aligner therapy and during conventional fixed orthodontic appliances.
Furthermore, the effectiveness of clear aligner therapy in achieving orthodontic canine retraction will be assessed.
Discision means using a disk to cut through the cortical bone inducing regional acceleratory phenomenon (RAP) which may accelerate orthodontic tooth movement (OTM).
124 studies on the registry are indexed under Malocclusion, Angle Class II; 19 are open to participants now.
This study's planned enrollment of 24 is below the median of 34 across 115 interventional studies indexed under Malocclusion, Angle Class II.
Browse Malocclusion, Angle Class II studies →Al-Azhar University is the lead sponsor of 531 studies on the registry; 172 are open to participants now.
Of its 5 completed or terminated interventional studies of FDA-regulated products, 0 (0%) have results posted.
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1 - Age from 17 to 24 years old. 2- Fully erupted permanent dentition, 3rd molars excluded. 3- Patients need 1st premolars extraction therapy to achieve class I canine relationship e.g. class I bimaxillary dentoaveolar protrusion or class II division 1 malocclusion with mild or no crowding.
4- Normal shape and structure of maxillary canines, with no history of filling or root canal treatment.
5- Similar degree of minimal crowding on each side of the maxillary arch. 6- Good oral and general health.
Exclusion Criteria:
Divided into: Two subgroups by split mouth right and left side randomly. One side with discision and other without.
Procedure: Discision
Divided into: Two subgroups by split mouth right and left side randomly. One side with discision and other side without
Procedure: Discision
Using a disk saw to make cut it the bone mesial and distal to the canine in one side randomly to accelerate it's movement (retraction).
Evaluation of maxillary canine retraction rate in millimeters per week
Evaluation of maxillary canine retraction with discision in clear aligners verses fixed appliances using cbct
Time frame: 10 weeks from the beginning of canine retraction.
Plan to share: Undecided
No publications or documents are linked to this record.
From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗
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Malocclusion, Angle Class II →