An interventional study of micro-osteoperforations in Bimaxillary Protrusion, Angle Class II, Division 1 and Dental Malocclusions, sponsored by Al-Azhar University. Completed at 1 site in Egypt. Open to participants aged 15 Years to 22 Years. Per ClinicalTrials.gov, last updated 2022-06-16.
Sponsored by Al-Azhar University · Not applicable, Interventional, and Other
The aim of this clinical prospective study will be directed to evaluate two approaches of micro-osteoperforations (MOPs) during orthodontic canine retraction.
The aim of the present clinical study was directed to evaluate the effectiveness of two approaches of micro-osteoperforations (MOPs) during orthodontic canine retraction.
This study was conducted on a total sample of 36 canines of 18 patients, 15-22 years old who required therapeutic extraction of maxillary 1st premolars and canine retraction. They were selected randomly from the Outpatient Clinic, Department of Orthodontics, Faculty of Dental Medicine (Boys), Al-Azhar University, Cairo, Egypt.
they were randamly dived into two groups:as follows: Group I: include 9 patients , MOPs were performed for one time only on one side before retraction.
Group II: include 9 patients , MOPs were performed on repeated basis on one side.
Both maxillary canines, in each patient, were randomly assigned to either an experimental side or the control side in a simple split-mouth design. In the experimental side, micro-osteoperforations was performed distal to the maxillary canine at equal distance between maxillary canine and 2nd premolar before starting retraction, while the canines in the contralateral control side were retracted without micro-osteoperforations.
Extraction was done at the start of the treatment, and before fitting of the orthodontic appliance. Then upper dental arches were leveled and aligned using conventional sequences of wires.
Three flapless micro-osteoperforations was performed by using orthodontic miniscrews distal to the maxillary canines in the experimental side before starting retraction. Each perforation was 1.6 mm in diameter and 3-4 mm depth into the bone. Canines were completely retracted on 0.016 × 0.022 ̋ stainless steel wires by using closed coil spring delivered 150 gm force.
Patients were followed up every 28 days for 4 months of canine retraction. Routine orthodontic records were obtained for each patient before treatment.
Additionally, a full skull CBCT images were taken before treatment and immediately after canine retraction.
The rate of canine retraction was assessed clinically; in addition, cone beam CT (CBCT) scans were used to assess the amount of canine retraction root length changes. Also anchorage loss of first permanent molars were assessed.
The treatment results were compared clinically and radiographically (CBCT).
457 studies on the registry are indexed under Malocclusion; 89 are open to participants now.
This study's enrollment of 18 is below the median of 36 across 372 interventional studies indexed under Malocclusion.
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Inclusion Criteria:All patients should satisfy the following criteria:-
Exclusion Criteria:
Conventional side Canine retraction was commenced without micro-osteoperforations.
Three flapless micro-osteoperforations (MOPs) was performed for one time only distal to the maxillary canine before starting retraction.
Procedure: micro-osteoperforations
Three flapless micro-osteoperforations (MOPs) was performed on repeated basis distal to the maxillary canine evey 28 days before canine retraction.
Procedure: micro-osteoperforations
three flapless micro-osteoperforations was performed distal to the maxillary canine before starting retraction.
Also known as: MOPs
Rate of canine retraction
clinically, patients were evaluated immediately before canine retraction and every 28days until for months. It was based on measuring the distance between the contact points on the distal surface of the canines and the contact points on mesial surface of the second premolars.
Time frame: change from start of canine retraction until 4 months .
This study is completed, as verified in Jun 2022. You cannot join it, but the record below documents what was studied.
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Al-Azhar University