[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100628169":3},{"organization":4,"armGroups":7,"interventions":20,"overallOfficials":31,"centralContacts":36,"locations":46,"responsibleParty":63,"collaborators":26,"id":65,"slug":66,"hasResults":67,"nctId":68,"briefTitle":69,"officialTitle":70,"acronym":71,"eligibilityCriteria":72,"healthyVolunteers":73,"sex":74,"minAge":75,"maxAge":76,"enrollmentInfo":77,"targetDuration":26,"studyType":80,"phases":81,"briefSummary":83,"conditions":84,"keywords":86,"overallStatus":91,"whyStopped":26,"lastUpdateSubmitDate":92,"lastUpdatePostDateStruct":93,"startDateStruct":96,"completionDateStruct":98,"leadSponsor":100,"locationsCount":101},{"fullName":5,"class":6},"Islamabad Medical and Dental College","OTHER",[8,14],{"label":9,"type":10,"description":11,"interventionNames":12},"Modified Corticotomy Assisted Canine Retraction","EXPERIMENTAL","Description: Participants will undergo modified corticotomy procedure followed by canine retraction using frictionless T-loop mechanics after extraction of maxillary first premolars.\n\nIntervention:\n\n* Procedure: Modified Corticotomy\n* Procedure: Frictionless T-loop canine retraction.",[13],"Procedure: Modified Corticotomy assisted frictionless canine retraction",{"label":15,"type":16,"description":17,"interventionNames":18},"Conventional T-loop Canine Retraction","ACTIVE_COMPARATOR","Description: Participants will undergo conventional canine retraction using frictionless T-loop mechanics without any surgical intervention after extraction of maxillary first premolars.\n\nIntervention: Frictionless T-loop canine retraction.",[19],"Procedure: Conventional Frictionless Canine retraction",[21,27],{"type":22,"name":23,"description":24,"armGroupLabels":25,"otherNames":26},"PROCEDURE","Modified Corticotomy assisted frictionless canine retraction","A surgical procedure in which a buccal flap is elevated and two vertical corticotomy cuts are made in the maxillary cortical bone adjacent to the extraction site to accelerate orthodontic tooth movement.",[9],null,{"type":22,"name":28,"description":29,"armGroupLabels":30,"otherNames":26},"Conventional Frictionless Canine retraction","Orthodontic space closure using 17×25 TMA T-loops activated to deliver approximately 200 g of force for frictionless canine retraction into maxillary first premolar extraction spaces.",[15],[32],{"name":33,"affiliation":34,"role":35},"Prof. Dr. Haroon Shahid Qazi, BDS, MS, MCPS (HPE)","Islamabad Medical & Dental Hospital","STUDY_CHAIR",[37,42],{"name":38,"role":39,"phone":40,"phoneExt":26,"email":41},"Dr. Menal Khurshid, BDS","CONTACT","0333-5303397","menal.15@iideas.edu.pk",{"name":43,"role":39,"phone":44,"phoneExt":26,"email":45},"Prof. Dr. Haroon Shahid Qazi, BDS, MS, MCPS (HPE),","0300-5001774","haroon77@gmail.com",[47],{"facility":48,"status":26,"city":49,"state":50,"zip":51,"country":52,"countryCode":53,"cosmosGeoPoint":54,"geoPoint":59,"contacts":60},"Islamabad Dental Hospital","Islamabad","Federal","45720","Pakistan","PK",{"type":55,"coordinates":56},"Point",[57,58],73.04329,33.72148,{"lat":58,"lon":57},[61],{"name":62,"role":39,"phone":40,"phoneExt":26,"email":41},"Menal Khurshid, BDS",{"type":64,"investigatorFullName":26,"investigatorTitle":26,"investigatorAffiliation":26,"oldNameTitle":26,"oldOrganization":26},"SPONSOR","100628169","comparison-of-root-resorption-in-modified-corticotomy-assisted-and-conventional-canine-retraction-100628169",false,"NCT07458139","Comparison of Root Resorption in Modified Corticotomy-Assisted and Conventional Canine Retraction","Comparison of External Apical Root Resorption in Modified Corticotomy-Assisted and Conventionally Retracted Maxillary Canines Using Frictionless T-Loop Mechanics: A Randomized Controlled Clinical Trial","MCA-CR","Inclusion Criteria:\n\n* Patients aged 12-30 years requiring canine retraction into maxillary first premolar extraction spaces\n* Patients with normal vertical skeletal pattern (mandibular plane angle 32° ± 5°)\n* Patients with healthy periodontium\n\nExclusion Criteria:\n\n* Syndromic patients\n* Patients with systemic conditions requiring long-term medication affecting orthodontic tooth movement (e.g., NSAIDs, bisphosphonates, anticonvulsants)\n* Mixed dentition cases\n* Patients with pre-existing root resorption\n* Patients who fail to attend scheduled appointments",true,"ALL","12 Years","30 Years",{"count":78,"type":79},60,"ESTIMATED","INTERVENTIONAL",[82],"NA","This randomized controlled clinical trial will compare external apical root resorption in patients undergoing maxillary canine retraction using modified corticotomy-assisted frictionless T-loop mechanics versus conventional frictionless T-loop mechanics. Sixty orthodontic patients requiring extraction of maxillary first premolars will be randomly assigned to two groups. Changes in canine root length will be measured on panoramic radiographs taken before and after retraction to determine the extent of external apical root resorption. The study will evaluate whether modified corticotomy-assisted retraction results in different root resorption outcomes compared to conventional retraction.",[85],"External Apical Root Resorption in Maxillary Canines During Orthodontic Retraction",[87,88,89,90],"Maxillary Canine Retraction","External Apical Root Resorption","Frictionless Mechanics","Modified Corticotomy","NOT_YET_RECRUITING","2026-03-03",{"date":94,"type":95},"2026-03-09","ACTUAL",{"date":97,"type":79},"2026-03",{"date":99,"type":79},"2026-07",{"name":5,"class":6},1]