[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100579513":3},{"organization":4,"armGroups":7,"interventions":17,"overallOfficials":12,"centralContacts":23,"locations":29,"responsibleParty":53,"collaborators":12,"id":57,"slug":58,"hasResults":59,"nctId":60,"briefTitle":61,"officialTitle":62,"acronym":12,"eligibilityCriteria":63,"healthyVolunteers":59,"sex":64,"minAge":65,"maxAge":66,"enrollmentInfo":67,"targetDuration":12,"studyType":70,"phases":71,"briefSummary":73,"conditions":74,"keywords":77,"overallStatus":32,"whyStopped":12,"lastUpdateSubmitDate":82,"lastUpdatePostDateStruct":83,"startDateStruct":86,"completionDateStruct":88,"leadSponsor":90,"locationsCount":91},{"fullName":5,"class":6},"Tanta University","OTHER",[8,13],{"label":9,"type":10,"description":11,"interventionNames":12},"conventional acrylic partial denture space maintainer","ACTIVE_COMPARATOR","an elastomeric impression will be done to produce a plaster cast then a conventional acrylic partial space maintainer will be fabricated and delivered for the child patient.",null,{"label":14,"type":15,"description":16,"interventionNames":12},"3-D printed partial denture space maintainer","EXPERIMENTAL","A 3-D intraoral scanner will be used to produce digital models. STL file will be used to design a 3-D printed partial denture space maintainer which will be delivered to the child patient.",[18,21],{"type":6,"name":19,"description":20,"armGroupLabels":12,"otherNames":12},"space maintainer","3-D printed partial denture space maintainer will designed for each child patient who has premature loss of primary teeth after doing intraoral scanning",{"type":6,"name":19,"description":22,"armGroupLabels":12,"otherNames":12},"a conventional impression will be done for a child patient with premature loss of his primary teeth, then a plaster model will gained. A conventional acrylic partial denture will be designed and delivered to the patient.",[24],{"name":25,"role":26,"phone":27,"phoneExt":12,"email":28},"shaimaa eldesouky, assistant professor","CONTACT","+201008994242","shaimaaeldesouky@dent.tanta.edu.eg",[30,46],{"facility":31,"status":32,"city":33,"state":12,"zip":34,"country":35,"countryCode":36,"cosmosGeoPoint":37,"geoPoint":42,"contacts":43},"pediatric dentistry department, faculty of dentistry, Tanta university","RECRUITING","Tanta","31527","Egypt","EG",{"type":38,"coordinates":39},"Point",[40,41],31.00192,30.78847,{"lat":41,"lon":40},[44],{"name":25,"role":26,"phone":45,"phoneExt":12,"email":28},"01008994242",{"facility":5,"status":47,"city":33,"state":12,"zip":34,"country":35,"countryCode":36,"cosmosGeoPoint":48,"geoPoint":50,"contacts":51},"NOT_YET_RECRUITING",{"type":38,"coordinates":49},[40,41],{"lat":41,"lon":40},[52],{"name":25,"role":26,"phone":45,"phoneExt":12,"email":28},{"type":54,"investigatorFullName":55,"investigatorTitle":56,"investigatorAffiliation":5,"oldNameTitle":12,"oldOrganization":12},"PRINCIPAL_INVESTIGATOR","Shaimaa Shaban Mohamed El-desouky","assistant professor of pediatric dentistry","100579513","clinical-evaluation-of-3-d-printed-partial-denture-space-maintainer-100579513",false,"NCT06825273","Clinical Evaluation of 3-D Printed Partial Denture Space Maintainer","Clinical Evaluation of 3-D Printed Partial Denture Space Maintainer and Its Impact on Children's Oral Health Status: A Randomized Controlled Clinical Crossover Study","Inclusion Criteria:\n\n* apparently, healthy cooperative children having recent premature loss of lower primary molars\n* the permanent successors of the lost primary molars were not expected to erupt within 6 months\n* Angle's class 1 occlusion with normal primary molar relation\n* Presence of teeth on the mesial and distal side of the edentulous area\n* Absence of para-functional habits or abnormal occlusion conditions such as crossbite, open bite, or deep bite.\n* Radiographically, presence of permanent successors.\n* parents and children were accepting the new treatment modality.\n\nExclusion Criteria:\n\n* children exhibited poor oral hygiene, para-functional oral habits, severe crowding, space loss, and abnormal occlusion\n* Extraction of primary molars exceeding three months.\n* Radiographically, absence of permanent successor.\n* uncooperative children","ALL","7 Years","9 Years",{"count":68,"type":69},40,"ESTIMATED","INTERVENTIONAL",[72],"NA","Primary dentition is the most suitable space maintainer for permanent teeth. However, as infants often lose their primary teeth too soon, using a space maintainer is the most efficient, long-lasting, and economical way to prevent malocclusions and function impairment in the future. Regarding personalized appliances, space maintainers in digital pediatric dentistry have made significant progress. Digital technology decreases the manual manufacturing stages that take a long time and increases the reliability and durability of digital fabrication procedures.",[75,76],"Space Maintenance","Gingival Health",[78,79,80,81],"partial denture space maintainer","3-D printing","plaque index","gingival index","2025-04-15",{"date":84,"type":85},"2025-04-17","ACTUAL",{"date":87,"type":85},"2025-03-01",{"date":89,"type":69},"2025-10",{"name":5,"class":6},2]