[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100642397":3},{"organization":4,"armGroups":7,"interventions":20,"overallOfficials":31,"centralContacts":41,"locations":46,"responsibleParty":58,"collaborators":26,"id":61,"slug":62,"hasResults":63,"nctId":64,"briefTitle":65,"officialTitle":66,"acronym":67,"eligibilityCriteria":68,"healthyVolunteers":63,"sex":69,"minAge":70,"maxAge":71,"enrollmentInfo":72,"targetDuration":26,"studyType":75,"phases":76,"briefSummary":78,"conditions":79,"keywords":81,"overallStatus":89,"whyStopped":26,"lastUpdateSubmitDate":90,"lastUpdatePostDateStruct":91,"startDateStruct":94,"completionDateStruct":96,"leadSponsor":98,"locationsCount":99},{"fullName":5,"class":6},"Cairo University","OTHER",[8,14],{"label":9,"type":10,"description":11,"interventionNames":12},"3D printed resin crowns","EXPERIMENTAL","Children will receive indirect restorations using 3D-printed resin crowns on primary molars affected by reversible pulpitis",[13],"Device: 3D printed resin based crowns",{"label":15,"type":16,"description":17,"interventionNames":18},"Stainless steel crowns","ACTIVE_COMPARATOR","Children will receive stainless steel crowns on primary molars affected by reversible pulpitis",[19],"Device: Prefabricated stainless steel crowns",[21,27],{"type":22,"name":23,"description":24,"armGroupLabels":25,"otherNames":26},"DEVICE","3D printed resin based crowns","1-Select an appropriately sized resin-based prefabricated crown based on the mesio-distal width of the tooth. 2-Perform occlusal reduction of approximately 1.5-2.0 mm following the natural occlusal anatomy. 3-Reduce buccal and lingual cusps, central groove, and marginal ridges to achieve adequate occlusal clearance. 4-Perform proximal reduction using a tapered fissure or diamond bur to eliminate mesial and distal contacts by approximately 1.0 mm. 5-Avoid creating ledges or damaging adjacent teeth during proximal reduction. 6-Slightly reduce buccal and lingual surfaces to eliminate undercuts and facilitate crown seating. 7-Round and smooth all sharp line angles and points of the preparation. 8-In cases with adjacent teeth, perform additional interproximal reduction if required for proper seating.9-Try-in the crown intraorally and seat it using firm pressure from lingual to buccal direction. 10-Check marginal adaptation, ensuring slight subgingival extension (approximately 0.5-1.0 mm).",[9],null,{"type":22,"name":28,"description":29,"armGroupLabels":30,"otherNames":26},"Prefabricated stainless steel crowns","1-Select an appropriately sized stainless steel crown based on the mesiodistal width of the tooth. 2-Perform minimal occlusal reduction (approximately 1.0-1.5 mm) following the anatomical occlusal contour to create suficient space for crown placement. 3-Lightly reduce proximal contacts to allow crown seating, without creating steps or excessive taper. 4-Perform minimal buccal and lingual reduction only if required to eliminate undercuts and facilitate passive seating. 5-Round sharp line angles and smooth rough surfaces to allow proper adaptation. 5-Verify adequate occlusal clearance and passive path of insertion. 6-Try-in the crown and adjustsize if necessary to ensure proper fit. 7-Trim and contour crown margins to achieve optimal gingival adaptation (if needed). 8-Seat the crown firmly using finger pressure to confirm complete seating. 9-Cement the crown with glass ionomer cement and remove excess cement after initial setting.",[15],[32,35,38],{"name":33,"affiliation":5,"role":34},"Sherine Badr, PHD","STUDY_CHAIR",{"name":36,"affiliation":5,"role":37},"Nariman Osama, BDS","PRINCIPAL_INVESTIGATOR",{"name":39,"affiliation":5,"role":40},"Hanna Abdel Moneim, PHD","STUDY_DIRECTOR",[42],{"name":36,"role":43,"phone":44,"phoneExt":26,"email":45},"CONTACT","01010381531","Nareman.osama@dentistry.cu.edu.eg",[47],{"facility":48,"status":26,"city":49,"state":26,"zip":26,"country":50,"countryCode":51,"cosmosGeoPoint":52,"geoPoint":57,"contacts":26},"Faculty of dentistry","Cairo","Egypt","EG",{"type":53,"coordinates":54},"Point",[55,56],31.24967,30.06263,{"lat":56,"lon":55},{"type":37,"investigatorFullName":59,"investigatorTitle":60,"investigatorAffiliation":5,"oldNameTitle":26,"oldOrganization":26},"Nariman osama Mohamed","The Principal Investigator (Resident in Pediatric Dentistry and Dental Public Health Department, Faculty of Dentistry, Cairo University.)","100642397","3d-printed-resin-crowns-vs-stainless-steel-crowns-in-pulpotomized-primary-molars-100642397",false,"NCT07648979","3D-Printed Resin Crowns vs Stainless Steel Crowns in Pulpotomized Primary Molars.","Clinical Evaluation of 3D Printed Resin Based Crowns Versus Stainless Steel Crowns in Pulpotomized Primary Mandibular Molars : A Randomized Controlled Clinical Trial","3DRSCVSSSC","Inclusion Criteria:\n\nChildren aged 4 to 8 years. Cooperative children who are able to accept dental treatment. Teeth diagnosed with reversible pulpitis. Children in good general health with no systemic conditions affecting oral health.\n\nParents\u002Fguardians willing to provide written informed consent and attend follow-up visits.\n\nExclusion Criteria:\n\nTeeth deemed non-restorable (e.g., gross carious destruction or fractures beyond restoration).\n\nParents\u002Fguardians unwilling to participate in the study or provide informed consent.","ALL","4 Years","8 Years",{"count":73,"type":74},26,"ESTIMATED","INTERVENTIONAL",[77],"NA","The goal of this clinical trial is to learn whether 3D-printed resin-based crowns are an effective alternative to stainless steel crowns for restoring pulpotomized primary mandibular molars in children. The main questions it aims to answer are:\n\nDo 3D-printed resin-based crowns provide better gingival health than stainless steel crowns? Are there differences in plaque accumulation, crown retention, and child and parent satisfaction between the two crown types?\n\nParticipants will:\n\nReceive either a 3D-printed resin-based crown or a stainless steel crown after pulpotomy.\n\nAttend follow-up visits for clinical evaluation over 12 months.",[80],"Dental Caries",[82,83,84,85,86,87,88],"Dental caries","3D-Printed Resin Crowns","Primary Molars","Pulpotomy","Stainless Steel Crowns","crown retention","Gingival Health","NOT_YET_RECRUITING","2026-06-11",{"date":92,"type":93},"2026-06-15","ACTUAL",{"date":95,"type":74},"2026-07",{"date":97,"type":74},"2027-08",{"name":5,"class":6},1]