[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100559041":3},{"organization":4,"armGroups":7,"interventions":18,"overallOfficials":24,"centralContacts":29,"locations":38,"responsibleParty":50,"collaborators":23,"id":54,"slug":55,"hasResults":56,"nctId":57,"briefTitle":58,"officialTitle":59,"acronym":23,"eligibilityCriteria":60,"healthyVolunteers":61,"sex":62,"minAge":63,"maxAge":64,"enrollmentInfo":65,"targetDuration":23,"studyType":68,"phases":69,"briefSummary":71,"conditions":72,"keywords":23,"overallStatus":40,"whyStopped":23,"lastUpdateSubmitDate":74,"lastUpdatePostDateStruct":75,"startDateStruct":78,"completionDateStruct":80,"leadSponsor":82,"locationsCount":83},{"fullName":5,"class":6},"Ain Shams University","OTHER",[8,14],{"label":9,"type":10,"description":11,"interventionNames":12},"polyetheretherketone","ACTIVE_COMPARATOR","PEEK 'Polyetheretherketone' Victrex® is a type of polymer with suitable mechanical and\n\nphysical properties. It is a resilient material with high flexural strength and resistance\n\nto deformation. Therefore, it can be used in fixed prosthesis and space maintainers",[13],"Other: aesthetic functional space maintainers",{"label":15,"type":10,"description":16,"interventionNames":17},"monolithic zirconia","BruxZir® is a type of monolithic zirconia with higher flexural strength and fracture toughness than the classic zirconia and can withstand the changes in temperature in the oral cavity. Therefore it can be used as a space maintainer",[13],[19],{"type":6,"name":20,"description":21,"armGroupLabels":22,"otherNames":23},"aesthetic functional space maintainers","evaluate the use of Polyetheretherketone 'PEEK' and monolithic zirconia 'Bruxzir' as esthetic functional band and loop space maintainers.",[15,9],null,[25],{"name":26,"affiliation":27,"role":28},"Nagwa Khattab, Professor","Ainshams U","STUDY_DIRECTOR",[30,35],{"name":31,"role":32,"phone":33,"phoneExt":23,"email":34},"Hagar Abozeid, PhD","CONTACT","0201110611169","Hagar_abozeid_22@hotmail.com",{"name":36,"role":32,"phone":37,"phoneExt":23,"email":23},"Mariem Wassel, Professor","01064871416",[39],{"facility":5,"status":40,"city":41,"state":23,"zip":23,"country":42,"countryCode":43,"cosmosGeoPoint":44,"geoPoint":49,"contacts":23},"RECRUITING","Cairo","Egypt","EG",{"type":45,"coordinates":46},"Point",[47,48],31.24967,30.06263,{"lat":48,"lon":47},{"type":51,"investigatorFullName":52,"investigatorTitle":53,"investigatorAffiliation":5,"oldNameTitle":23,"oldOrganization":23},"PRINCIPAL_INVESTIGATOR","Hagar Abozeid","principal investigator","100559041","evaluation-of-peek-and-bruxzir-as-esthetic-space-maintainers-in-children-100559041",false,"NCT06558968","Evaluation of PEEK and BruxZir as Esthetic Space Maintainers in Children","Evaluation of Polyetheretherketone and Monolithic Zirconia as Esthetic Functional Space Maintainers in Children (A Randomized Clinical Trial)","Inclusion Criteria:\n\n* Clinical inclusion criteria:\n\n  * Children requiring bilateral extraction of mandibular first primary molars or those with previously extracted molars no more than 6 months prior to intervention (11) .\n  * Existence of teeth on the mesial and distal side of edentulous area.\n  * Angle's Class I molar relationship and\u002For flush terminal\u002Fmesial step primary molar occlusion\n\nRadiographic inclusion criteria:\n\n* No periapical and\u002F or furcural pathological condition related to abutment teeth.\n* Presence of tooth germ of the succeeding tooth (mandibular first premolars).\n* Presence of more than 1 mm of bone overlying the successor tooth germ\n\nExclusion Criteria:\n\n* Carious abutment teeth requiring pulp therapy.\n\n  * Carious abutment primary teeth requiring a full coverage restoration.\n  * Patients with history of bruxism or\u002Fand clenching.\n  * Patients with medical, intellectual or physical disabilities.\n  * Patients with abnormalities as posterior cross-bite, open bite, and deep bite",true,"ALL","6 Years","11 Years",{"count":66,"type":67},20,"ESTIMATED","INTERVENTIONAL",[70],"NA","Compare two band and loop space maintainers made from two tooth colored materials; Polyetherethherketone (PEEK) and monolithic Zirconia (BruxZir) as regards to:\n\n* Clinical performance of space maintainers in terms of frequency of debonding or fracture of the appliance and health of adjacent gingiva during a one-year follow up.\n* Wear of the opposing teeth.",[73],"Pediatric Dentistry","2024-08-16",{"date":76,"type":77},"2024-08-19","ACTUAL",{"date":79,"type":77},"2024-01-03",{"date":81,"type":67},"2025-01",{"name":5,"class":6},1]