[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100521311":3},{"organization":4,"outcomesModule":7,"designInfo":18,"detailedDescription":17,"studyPopulation":20,"armGroups":21,"interventions":27,"overallOfficials":32,"centralContacts":36,"locations":42,"responsibleParty":60,"collaborators":17,"id":64,"slug":17,"hasResults":65,"nctId":66,"briefTitle":67,"officialTitle":67,"acronym":17,"eligibilityCriteria":68,"healthyVolunteers":69,"sex":70,"minAge":17,"maxAge":17,"enrollmentInfo":71,"targetDuration":17,"studyType":74,"phases":17,"briefSummary":75,"conditions":76,"keywords":17,"overallStatus":45,"whyStopped":17,"lastUpdateSubmitDate":78,"lastUpdatePostDateStruct":79,"startDateStruct":82,"completionDateStruct":83,"leadSponsor":85,"locationsCount":86},{"fullName":5,"class":6},"Altamash Institute of Dental Medicine","OTHER",{"primaryOutcomes":8,"secondaryOutcomes":13,"otherOutcomes":17},[9],{"measure":10,"description":11,"timeFrame":12},"marginal fit","The margins of fixed restorations refers to the junction between the prepared tooth structure and the crown restoration","six months",[14],{"measure":15,"description":16,"timeFrame":12},"Internal fit","Internal fit is defined as the perpendicular distance between the framework and abutment teeth and the misfit is measured from occlusal\u002Fincisal and axial surfaces to the coping",null,{"allocation":17,"interventionModel":17,"interventionModelDescription":17,"primaryPurpose":17,"observationalModel":6,"timePerspective":19,"maskingInfo":17},"PROSPECTIVE","The phantom teeth (Nissin dental products Inc. Kyoto 601-8469,Japan) will be fixed in the model plaster block type II (Super national, Karachi Pakistan) with full crown and only 2mm of root portion",[22],{"label":23,"type":17,"description":24,"interventionNames":25},"NP is given to the non polished group which is group 2","Out of two groups, group 2 is a test group to which rough preparations are assigned",[26],"Other: microleakage",[28],{"type":6,"name":29,"description":30,"armGroupLabels":31,"otherNames":17},"microleakage","prevention of microleakage and secondary carries",[23],[33],{"name":34,"affiliation":5,"role":35},"Naseer Ahmad, Ph.D","STUDY_DIRECTOR",[37],{"name":38,"role":39,"phone":40,"phoneExt":17,"email":41},"Tooba Shabbir, FCPS","CONTACT","03442105654","tooba.shabbir92@gmai.com",[43],{"facility":44,"status":45,"city":46,"state":47,"zip":48,"country":49,"countryCode":50,"cosmosGeoPoint":51,"geoPoint":56,"contacts":57},"Altamash Institute Of Dental Medicine","RECRUITING","Karachi","Sindh","5444","Pakistan","PK",{"type":52,"coordinates":53},"Point",[54,55],67.0104,24.8608,{"lat":55,"lon":54},[58],{"name":38,"role":39,"phone":40,"phoneExt":17,"email":59},"tooba.shabbir92@gmail.com",{"type":61,"investigatorFullName":62,"investigatorTitle":63,"investigatorAffiliation":5,"oldNameTitle":17,"oldOrganization":17},"PRINCIPAL_INVESTIGATOR","Tooba Shabbir","Post Graduate Trainee","100521311",false,"NCT06067945","Comparison of Marginal Fit and Internal Adaptation in All-Metal Crowns: an in Vitro Experimental Trial","Inclusion Criteria:\n\n1. Phantom teeth\n2. Maxillary molars\n3. Metal crowns with conventional lost-wax technique for crown fabrication\n\nExclusion Criteria:\n\n1. Over prepared or underprepared crowns\n2. Defective metal crowns\n3. Ruptured silicone films upon removal\n4. Defective die stone casts",true,"ALL",{"count":72,"type":73},28,"ESTIMATED","OBSERVATIONAL","The goal of this in vitro study is to compare the marginal fit and internal adaptation of all-metal crowns in polished crown preparations and non-polished crown preparations The main question it aims to answer is: are the non polished tooth preparations comparable to polished preparations? We will compare polish and non polish groups and see their effects on marginal fit and internal adaptation of all metal crown",[77],"Evaluation of Marginal and Internal Fit of Metal Crowns","2025-02-24",{"date":80,"type":81},"2025-02-26","ACTUAL",{"date":78,"type":81},{"date":84,"type":73},"2025-06-20",{"name":5,"class":6},1]