[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100642058":3},{"organization":4,"armGroups":7,"interventions":15,"overallOfficials":25,"centralContacts":33,"locations":39,"responsibleParty":55,"collaborators":10,"id":58,"slug":59,"hasResults":60,"nctId":61,"briefTitle":62,"officialTitle":63,"acronym":64,"eligibilityCriteria":65,"healthyVolunteers":66,"sex":67,"minAge":68,"maxAge":10,"enrollmentInfo":69,"targetDuration":10,"studyType":72,"phases":10,"briefSummary":73,"conditions":74,"keywords":78,"overallStatus":91,"whyStopped":10,"lastUpdateSubmitDate":92,"lastUpdatePostDateStruct":93,"startDateStruct":96,"completionDateStruct":98,"leadSponsor":100,"locationsCount":101},{"fullName":5,"class":6},"George Emil Palade University of Medicine, Pharmacy, Sciences and Technology of Targu Mures","OTHER",[8],{"label":9,"type":10,"description":11,"interventionNames":12},"Group\u002FCohort (1): Split-mouth participants (both trimming-line designs)",null,"Patients wearing the supragingival trimming-line design on one dental arch and the juxtagingival design on the contralateral arch, who completed the comfort questionnaire after at least four weeks of wear.",[13,14],"Device: Supragingival trimming-line design","Device: Juxtagingival festooned trimming-line design",[16,21],{"type":17,"name":18,"description":19,"armGroupLabels":20,"otherNames":10},"DEVICE","Supragingival trimming-line design","Clear aligner edge covering approximately 2 mm of marginal gingiva (straight cut), worn on one dental arch.",[9],{"type":17,"name":22,"description":23,"armGroupLabels":24,"otherNames":10},"Juxtagingival festooned trimming-line design","Clear aligner edge following the scalloped gingival contour, terminating at the free gingival margin without covering the gingiva, worn on the contralateral arch.",[9],[26,30],{"name":27,"affiliation":28,"role":29},"EMILIA (PRODEA) RUSU","George Emil Palade University of Medicine, Pharmacy, Sciences, and Technology of Targu Mures, 38 Gheorghe Marinescu Street, 540139 Targu Mures, Romania","PRINCIPAL_INVESTIGATOR",{"name":31,"affiliation":28,"role":32},"LUMINITA LAZAR, DDS, PhD","STUDY_CHAIR",[34],{"name":35,"role":36,"phone":37,"phoneExt":10,"email":38},"EMILIA (PRODEA) RUSU, DDS, Specialist Orthodontist","CONTACT","+40756607316","rusu.emilia.24@stud.umfst.ro",[40],{"facility":41,"status":10,"city":42,"state":43,"zip":44,"country":45,"countryCode":46,"cosmosGeoPoint":47,"geoPoint":52,"contacts":53},"Aorys Clinic","Sibiu","Sibiu County","550027","Romania","RO",{"type":48,"coordinates":49},"Point",[50,51],24.15,45.8,{"lat":51,"lon":50},[54],{"name":35,"role":36,"phone":37,"phoneExt":10,"email":38},{"type":29,"investigatorFullName":56,"investigatorTitle":57,"investigatorAffiliation":5,"oldNameTitle":10,"oldOrganization":10},"Emilia Rusu","Doctoral Researcher in Dental Medicine; Senior Specialist in Orthodontics","100642058","comparison-of-patient-reported-comfort-between-two-clear-aligner-trimming-line-designs-a-split-mouth-study-100642058",false,"NCT07660809","Comparison of Patient-Reported Comfort Between Two Clear Aligner Trimming-Line Designs: A Split-Mouth Study","Comparison of Patient-Reported Comfort Between Supragingival and Juxtagingival Clear Aligner Trimming-Line Designs: A Cross-Sectional, Within-Subject Split-Mouth Study","COMFORT-ALIGN","Inclusion Criteria:\n\n* Adolescent or adult patient (aged 15 years or older)\n* Active orthodontic treatment with clear aligners, including finishing (refinement) aligners\n* Wearing two clear aligners with different trimming-line designs, one per dental arch: a supragingival design on one arch and a juxtagingival design on the contralateral arch\n* At least 4 weeks of wear of the two designs at the time of questionnaire completion\n* Good treatment compliance\n* Willing and able to complete the online questionnaire and provide the required consent\n\nExclusion Criteria:\n\n* Mixed orthodontic treatment (aligners combined with fixed appliances)\n* Pre-existing neurological, cognitive, or speech disorders\n* Systemic conditions affecting the oral cavity (e.g., xerostomia, mucosal disorders)",true,"ALL","15 Years",{"count":70,"type":71},70,"ESTIMATED","OBSERVATIONAL","* The trimming-line design of clear aligners (supragingival versus juxtagingival) is a routine clinical decision whose influence on patient-reported comfort has not been established; available evidence on aligner comfort derives almost exclusively from comparisons with fixed appliances.\n* This observational, cross-sectional study compares two clear aligner trimming-line designs with respect to patient-reported comfort: a supragingival design, whose edge rests on the marginal gingiva, and a juxtagingival design, whose edge follows the gingival contour without covering it. Because the two designs sit differently against the gingival soft tissue, they may be experienced differently during wear.\n* Participants are patients already wearing one trimming-line design on one dental arch and the other on the contralateral arch; each participant thus serves as their own control. After a minimum of four weeks of wear, participants complete a 20-item questionnaire once, rating the frequency of defined oral experiences for the maxillary and mandibular arch separately on a three-point ordinal scale (0 = none, 1 = occasional, 2 = frequent).\n* The questionnaire is anonymous; the design worn on each arch is identified from which of two identical forms a participant completes. Responses for the two designs are compared within each participant. The study evaluates whether trimming-line design is associated with differences in patient-reported comfort.",[75,76,77],"Patient Comfort","Malocclusion","Oral Health",[79,80,81,82,83,84,85,86,87,88,89,90],"clear aligners","trimming-line design","gingival margin","supragingival","juxtagingival","split-mouth design","patient-reported outcome","comfort","oral health-related quality of life","questionnaire","orthodontics","finishing orthodontic treatment","NOT_YET_RECRUITING","2026-06-18",{"date":94,"type":95},"2026-06-23","ACTUAL",{"date":97,"type":71},"2026-07",{"date":99,"type":71},"2026-08",{"name":5,"class":6},1]