[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-studies-list:{\"conditionNormalized\":\"external-apical-root-resorption-in-maxillary-canines-during-orthodontic-retraction\",\"overallStatus\":[\"RECRUITING\",\"AVAILABLE\",\"NOT_YET_RECRUITING\"],\"orderBy\":\"LastUpdateSubmitDate:desc\",\"size\":25,\"offset\":0}":3,"health-study-condition:external-apical-root-resorption-in-maxillary-canines-during-orthodontic-retraction":29},{"pageToken":4,"total":5,"offset":6,"count":5,"results":7},null,1,0,[8],{"id":9,"slug":10,"hasResults":11,"nctId":12,"briefTitle":13,"officialTitle":14,"acronym":15,"eligibilityCriteria":16,"healthyVolunteers":17,"sex":18,"minAge":19,"maxAge":20,"enrollmentInfo":21,"targetDuration":4,"studyType":24,"phases":25,"briefSummary":27,"conditions":28,"keywords":30,"overallStatus":35,"whyStopped":4,"lastUpdateSubmitDate":36,"lastUpdatePostDateStruct":37,"startDateStruct":40,"completionDateStruct":42,"leadSponsor":44,"locationsCount":5},"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":22,"type":23},60,"ESTIMATED","INTERVENTIONAL",[26],"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.",[29],"External Apical Root Resorption in Maxillary Canines During Orthodontic Retraction",[31,32,33,34],"Maxillary Canine Retraction","External Apical Root Resorption","Frictionless Mechanics","Modified Corticotomy","NOT_YET_RECRUITING","2026-03-03",{"date":38,"type":39},"2026-03-09","ACTUAL",{"date":41,"type":23},"2026-03",{"date":43,"type":23},"2026-07",{"name":45,"class":46},"Islamabad Medical and Dental College","OTHER"]