[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-studies-list:{\"conditionNormalized\":\"tooth-injuries\",\"overallStatus\":[\"RECRUITING\",\"AVAILABLE\",\"NOT_YET_RECRUITING\"],\"orderBy\":\"LastUpdateSubmitDate:desc\",\"size\":25,\"offset\":0}":3,"health-study-condition:tooth-injuries":29},{"pageToken":4,"total":5,"offset":6,"count":5,"results":7},null,2,0,[8,51],{"id":9,"slug":10,"hasResults":11,"nctId":12,"briefTitle":13,"officialTitle":14,"acronym":4,"eligibilityCriteria":15,"healthyVolunteers":16,"sex":17,"minAge":18,"maxAge":19,"enrollmentInfo":20,"targetDuration":4,"studyType":23,"phases":24,"briefSummary":26,"conditions":27,"keywords":31,"overallStatus":38,"whyStopped":4,"lastUpdateSubmitDate":39,"lastUpdatePostDateStruct":40,"startDateStruct":43,"completionDateStruct":45,"leadSponsor":47,"locationsCount":50},"100638379","luting-cements-for-prefabricated-zirconia-crown-retention-in-primary-anterior-teeth-in-children-100638379",false,"NCT07611734","Luting Cements for Prefabricated Zirconia Crown Retention in Primary Anterior Teeth in Children","Comparison of Self-Adhesive Resin, Conventional Glass Ionomer, and Bioactive Resin-Modified Glass Ionomer Cements for Prefabricated Zirconia Crown Retention in Primary Anterior Teeth: A Randomized Controlled Trial","Inclusion Criteria:\n\n1. Healthy children aged 2 to 7 years\n2. One or more primary maxillary or mandibular incisors requiring full-coverage restoration due to caries or trauma\n3. Adequate remaining tooth structure following preparation, defined as greater than 50% of the clinical crown\n4. Parent or legal guardian able and willing to provide written informed consent and to commit to the 36-month follow-up schedule\n\nExclusion Criteria:\n\n1. Active periodontal disease at the index tooth, defined as a Löe Gingival Index score of 2 or higher\n2. Parafunctional habits such as bruxism, severe thumb-sucking, or tongue-thrust documented at screening\n3. Known allergy or hypersensitivity to zirconia, resin, glass ionomer, or any component of the assigned cement\n4. Inconsistent oral hygiene, defined as less than twice-daily toothbrushing per parental report\n5. Systemic disease affecting bone metabolism, tooth development, or wound healing\n6. Current participation in another interventional dental clinical trial",true,"ALL","2 Years","7 Years",{"count":21,"type":22},120,"ESTIMATED","INTERVENTIONAL",[25],"NA","The goal of this clinical trial is to compare the long-term clinical performance of three different luting cements used to bond prefabricated zirconia crowns (PZCs) on primary front teeth in young children. The trial will determine whether any single cement offers superior retention, gum health, or marginal sealing compared to the others over a 3-year period.\n\nMain Questions:\n\nThe study aims to answer the following:\n\nAre conventional glass ionomer cement (GIC), bioactive resin-modified glass ionomer cement (BioCem™), and self-adhesive resin cement (SARC) equivalent in retaining prefabricated zirconia crowns on primary incisors over 36 months? Do these cements differ in their effect on gingival health, plaque accumulation, or marginal discoloration around the cemented crown?\n\nComparison:\n\nResearchers will compare three parallel groups of children whose primary incisors are restored with identical prefabricated zirconia crowns but cemented with one of the three different luting cements.\n\nParticipants will: Receive a clinical and radiographic dental examination at screening. Undergo placement of one or more prefabricated zirconia crowns on primary anterior teeth using their randomly assigned cement. Return to the clinic for blinded follow-up evaluations at 12, 24, and 36 months for assessment of crown retention, gingival health, plaque, and marginal staining.",[28,29,30],"Dental Caries","Tooth Injuries","Primary Tooth Restoration",[32,33,34,35,36,37],"Prefabricated Zirconia Crown","Luting Cement","Glass Ionomer Cement","Bioactive Cement","Self-Adhesive Resin Cement","Crown Retention","NOT_YET_RECRUITING","2026-05-21",{"date":41,"type":42},"2026-05-28","ACTUAL",{"date":44,"type":22},"2026-05",{"date":46,"type":22},"2029-07",{"name":48,"class":49},"Murad Alrashidi","OTHER",1,{"id":52,"slug":53,"hasResults":11,"nctId":54,"briefTitle":55,"officialTitle":56,"acronym":4,"eligibilityCriteria":57,"healthyVolunteers":16,"sex":17,"minAge":58,"maxAge":59,"enrollmentInfo":60,"targetDuration":4,"studyType":62,"phases":4,"briefSummary":63,"conditions":64,"keywords":66,"overallStatus":74,"whyStopped":4,"lastUpdateSubmitDate":75,"lastUpdatePostDateStruct":76,"startDateStruct":78,"completionDateStruct":80,"leadSponsor":82,"locationsCount":50},"100616749","colour-match-stability-and-patients-satisfaction-of-single-shade-composites-in-anterior-teeth-100616749","NCT07309653","Colour Match, Stability, and Patient's Satisfaction of Single-Shade Composites in Anterior Teeth","Colour Matching, Stability, and Patient's Satisfaction in Maxillary Anterior Restorations Using Single-Shade Composite and Silicone-Guided Index: A 12-Month Clinical Evaluation","Inclusion Criteria:\n\n* Children who exhibit cooperative dental behaviours (rating 3 and 4) according to Frankl's behaviour rating scale (Frankl et al. 1962)\n* Presence of at least one maxillary anterior permanent tooth with one-third of crown structure loss from dental trauma\n* The affected tooth must be vital or have undergone vital pulp therapy (e.g., pulpotomy with Calcium hydroxide, white-MTA, or Biodentine)\n\nExclusion Criteria:\n\n* Known allergy to methacrylate-based materials\n* Presence of parafunctional habits, such as bruxism\n* Presence of rampant caries\n* Presence of signs of hypomineralisation, such as post-eruptive breakdown, hypersensitivity, changes in enamel texture and hardness, and abnormal translucency on radiographs.\n* The affected tooth is classified as having moderate or severe discolouration according to Dean's fluorosis index (Dean, 1942)\n* The affected tooth has lost less than one-third of its coronal crown structure\n* The affected tooth has a fracture located at the subgingival margin\n* The affected tooth requires splinting due to the severity of the trauma\n* Presence of severe malocclusion that could compromise the integrity of the restoration","6 Years","15 Years",{"count":61,"type":22},23,"OBSERVATIONAL","The goal of this observational study is to evaluate the clinical performance of a single-shade composite resin, used with an injection moulding technique, in restoring maxillary incisors affected by traumatic dental injury in patients aged 6-15 years.\n\nThe main questions it aims to answer are:\n\n* How well does a single composite resin colour match the natural tooth?\n* How stable is the colour over a 6- and 12-month follow-up?\n* How satisfied are the children and parents with the restoration?",[29,65],"Dental Restoration, Permanent",[67,68,69,70,71,72,73],"Patient satisfaction","Color stability","Color matching","Single shade composter resins","Injection moulding technique","Flowable composite resins","Dental trauma","RECRUITING","2025-12-29",{"date":77,"type":42},"2026-01-02",{"date":79,"type":42},"2025-12-16",{"date":81,"type":22},"2027-10-28",{"name":83,"class":49},"Mahidol University"]