[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100415769":3},{"organization":4,"armGroups":7,"interventions":20,"overallOfficials":23,"centralContacts":26,"locations":32,"responsibleParty":48,"collaborators":23,"id":50,"slug":23,"hasResults":51,"nctId":52,"briefTitle":53,"officialTitle":53,"acronym":23,"eligibilityCriteria":54,"healthyVolunteers":55,"sex":56,"minAge":23,"maxAge":23,"enrollmentInfo":57,"targetDuration":23,"studyType":60,"phases":61,"briefSummary":63,"conditions":64,"keywords":70,"overallStatus":35,"whyStopped":23,"lastUpdateSubmitDate":74,"lastUpdatePostDateStruct":75,"startDateStruct":78,"completionDateStruct":80,"leadSponsor":82,"locationsCount":83},{"fullName":5,"class":6},"University of Ljubljana, Faculty of Medicine","OTHER",[8,14],{"label":9,"type":10,"description":11,"interventionNames":12},"APA","ACTIVE_COMPARATOR","Air-borne particle abrasion of zirconia RBFDPs prior to bonding",[13],"Other: APA",{"label":15,"type":16,"description":17,"interventionNames":18},"NAC","EXPERIMENTAL","Pretreatment of zirconia RBFDP with nanostructured alumina coating after milling of RBFDP's framework",[19],"Other: NAC",[21,24],{"type":6,"name":15,"description":17,"armGroupLabels":22,"otherNames":23},[15],null,{"type":6,"name":9,"description":11,"armGroupLabels":25,"otherNames":23},[9],[27],{"name":28,"role":29,"phone":30,"phoneExt":23,"email":31},"Tine Malgaj, DMD","CONTACT","+386 31 410140","tine.malgaj@mf.uni-lj.si",[33],{"facility":34,"status":35,"city":36,"state":23,"zip":37,"country":38,"countryCode":39,"cosmosGeoPoint":40,"geoPoint":45,"contacts":46},"Medical Faculty - University of Ljubljana Ljubljana","RECRUITING","Ljubljana","1000","Slovenia","SI",{"type":41,"coordinates":42},"Point",[43,44],14.50513,46.05108,{"lat":44,"lon":43},[47],{"name":28,"role":29,"phone":30,"phoneExt":23,"email":31},{"type":49,"investigatorFullName":23,"investigatorTitle":23,"investigatorAffiliation":23,"oldNameTitle":23,"oldOrganization":23},"SPONSOR","100415769",false,"NCT04693949","Effect of Nano-structured Alumina Coating on the Bond Strength of Zirconia Resin-bonded Fixed Dental Prostheses","Inclusion Criteria:\n\n1\\. Patients with missing central or lateral incisor\n\nExclusion Criteria:\n\n1. inadequate edentulous space for the pontic\n2. signs of bruxism\n3. abutment tooth with active periodontal or periapical disease\n4. inadequate enamel bonding surface of the abutment tooth\n5. inadequate interocclusal space for a retainer wing and a proximal connector\n6. pontic guidance\n7. physical or psychological disease likely to interfere with normal conduct of the study",true,"ALL",{"count":58,"type":59},80,"ESTIMATED","INTERVENTIONAL",[62],"NA","The purpose of this study is to evaluate the clinical outcome of resin-bonded fixed dental prostheses (RBFDPs) pretreated with nanostructured alumina coating (NAC).\n\nThe study adopts a prospective, randomized, controlled, double-blind design contrasting the use of NAC to air-borne particle abrasion (APA) (control) as a surface pretreatment method of zirconia RBFDPs used for replacing missing central or lateral incisors. The primary outcome evaluated is the retention\u002Fsurvival of the zirconia RBFDPs pretreated with APA and NAC.",[65,66,67,68,69],"Missing Incisors","Zirconia Surface Pretreatment","Children","Adults","Debonding",[71,72,73],"Airborne particle abrasion","Nanostructured alumina coating","Resin-bonded fixed dental prostheses","2026-06-18",{"date":76,"type":77},"2026-06-23","ACTUAL",{"date":79,"type":77},"2018-01-03",{"date":81,"type":59},"2030-01-01",{"name":5,"class":6},1]