[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100633757":3},{"organization":4,"armGroups":7,"interventions":19,"overallOfficials":26,"centralContacts":31,"locations":40,"responsibleParty":55,"collaborators":25,"id":57,"slug":58,"hasResults":59,"nctId":60,"briefTitle":61,"officialTitle":62,"acronym":25,"eligibilityCriteria":63,"healthyVolunteers":64,"sex":65,"minAge":66,"maxAge":67,"enrollmentInfo":68,"targetDuration":25,"studyType":71,"phases":72,"briefSummary":74,"conditions":75,"keywords":79,"overallStatus":84,"whyStopped":25,"lastUpdateSubmitDate":85,"lastUpdatePostDateStruct":86,"startDateStruct":89,"completionDateStruct":91,"leadSponsor":93,"locationsCount":94},{"fullName":5,"class":6},"Ankara Yildirim Beyazıt University","OTHER",[8,14],{"label":9,"type":10,"description":11,"interventionNames":12},"Maxillary First Permanent Molar","EXPERIMENTAL","A preformed SSC will be placed and cemented on the selected MIH-affected first permanent molar using the modified Hall technique. The procedure will involve selective caries removal while avoiding conventional tooth preparation, and local anesthesia will be administered only when clinically indicated.\n\nDigital intraoral scans and bite registrations will be obtained at T0 (immediately before crown placement), T1 (immediately after crown placement), T2 (two weeks after crown placement), T3 (one month after crown placement), and T4 (three months after crown placement) for occlusal analysis.",[13],"Procedure: Modified Hall Technique",{"label":15,"type":16,"description":17,"interventionNames":18},"Mandibular First Permanent Molar","ACTIVE_COMPARATOR","A preformed SSC will be placed and cemented on the selected MIH-affected mandibular first permanent molar using the modified Hall technique. The procedure will involve selective caries removal while maintaining a minimally invasive approach and avoiding conventional tooth preparation. Local anesthesia will be administered only when clinically indicated.\n\nDigital intraoral scans and bite registrations will be obtained at T0 (immediately before crown placement), T1 (immediately after crown placement), T2 (two weeks after crown placement), T3 (one month after crown placement), and T4 (three months after crown placement) for occlusal analysis.",[13],[20],{"type":21,"name":22,"description":23,"armGroupLabels":24,"otherNames":25},"PROCEDURE","Modified Hall Technique","A preformed SSC will be placed on the selected MIH-affected first permanent molar using the modified Hall technique. The procedure will involve selective caries removal while maintaining a minimally invasive approach and avoiding conventional tooth preparation. Local anesthesia will be administered only when clinically indicated.\n\nDigital Scan and Bite Registration Schedule\n\n* T0 (Baseline): Immediately before crown placement\n* T1 (Immediate): Immediately after crown placement\n* T2 (Two Weeks): Two weeks after crown placement\n* T3 (One Month): One month after crown placement\n* T4 (Three Months): Three months after crown placement.\n\nAt each time point (T0-T4), digital scans of both the maxillary and mandibular arches will be obtained, and a buccal bite registration will be recorded.\n\nIn addition, temporomandibular joint examination and periodontal evaluation of the tissues surrounding the crowned tooth will be performed at T0, T2, T3, and T4 follow-up visits.",[15,9],null,[27],{"name":28,"affiliation":29,"role":30},"Ayşe I. Cihan, Professor","Ankara Yıldırım Beyazit University Faculty of Dentistry","STUDY_CHAIR",[32,36],{"name":28,"role":33,"phone":34,"phoneExt":25,"email":35},"CONTACT","00905325095961","isilcihan@yahoo.com",{"name":37,"role":33,"phone":38,"phoneExt":25,"email":39},"Eylül Ü. Aykan","00905342820608","eylul.11235@gmail.com",[41],{"facility":42,"status":25,"city":43,"state":44,"zip":45,"country":46,"countryCode":25,"cosmosGeoPoint":47,"geoPoint":52,"contacts":53},"Ankara Yıldırım Beyazıt University Faculty of Dentistry","Ankara","Keçiören","06620","Turkey (Türkiye)",{"type":48,"coordinates":49},"Point",[50,51],32.85427,39.91987,{"lat":51,"lon":50},[54],{"name":28,"role":33,"phone":34,"phoneExt":25,"email":35},{"type":56,"investigatorFullName":25,"investigatorTitle":25,"investigatorAffiliation":25,"oldNameTitle":25,"oldOrganization":25},"SPONSOR","100633757","occlusal-changes-after-modified-hall-technique-in-molars-affected-by-molar-incisor-hypomineralization-100633757",false,"NCT07530835","Occlusal Changes After Modified Hall Technique in Molars Affected by Molar-Incisor Hypomineralization","Evaluation of the Occlusal Effects of Stainless Steel Crowns Placed Using the Modified Hall Technique in Permanent Molars Affected by Molar-Incisor Hypomineralization","Inclusion Criteria for Participants\n\n* Absence of any skeletal anomalies\n* ASA physical status I or II according to the American Society of Anesthesiologists classification\n* Frankl behavior rating score of 3 or 4\n* All permanent first molars erupted and in contact at maximum intercuspation\n* Emergency dental needs (e.g., toothache or acute conditions) previously managed\n* Presence of at least one permanent first molar with an MIH-TNI score of 2 or 4 requiring SSC restoration\n* No pain, clicking, or functional limitation in the temporomandibular joint region\n* Children and their legal guardians who read, understand, and provide written and verbal informed consent Inclusion Criteria for Tooth\n* Permanent first molars with MIH Treatment Need Index (MIH-TNI) score of 2 or 4 indicating the need for SSC restoration\n* Occlusal contact with the opposing tooth maintained at maximum intercuspation despite post-eruptive enamel breakdown, with a noticeable reduction in posterior occluso-vertical dimension\n* Absence of clinical and radiographic signs or symptoms associated with irreversible pulp inflammation or necrosis\n* Absence of gingival or periodontal pathology in the surrounding soft tissues\n\nExclusion Criteria\n\n* Individuals with serious systemic or psychological conditions\n* Participants who fail to attend follow-up appointments\n* Those who exhibit excessive fear or anxiety reactions and are unable to cooperate during treatment",true,"ALL","6 Years","14 Years",{"count":69,"type":70},46,"ESTIMATED","INTERVENTIONAL",[73],"NA","Molar-incisor hypomineralization (MIH) frequently affects permanent first molars and increases the risk of rapid post-eruptive breakdown and restorative failure. Stainless steel crowns (SSCs) are considered a reliable treatment option for severely affected molars; however, SSC placement may temporarily alter the occlusal vertical dimension and occlusal contacts. Quantitative evidence describing the occlusal adaptation process following SSC placement in MIH-affected permanent molars is limited.\n\nThis prospective longitudinal clinical study aims to evaluate occlusal adaptation after SSC placement using the modified Hall technique in MIH-affected permanent first molars. Forty-six children will be included. Intraoral scans will be obtained at baseline, immediately after treatment, and during follow-up visits up to 3 months. Digital models will be superimposed to measure three-dimensional changes in cusp position, occluso-vertical dimension, and occlusal contact area. Temporomandibular joint function and periodontal parameters will also be assessed. The results are expected to provide quantitative evidence on occlusal adaptation following SSC treatment in MIH-affected molars.",[76,77,78],"Dental Caries","Dental Occlusion","Pediatric Dentistry",[80,81,82,83],"Hall Technique","Occlusal adjustment","Occlusal vertical dimension","Intraoral scanning","NOT_YET_RECRUITING","2026-04-14",{"date":87,"type":88},"2026-04-17","ACTUAL",{"date":90,"type":70},"2026-06-01",{"date":92,"type":70},"2027-12-01",{"name":5,"class":6},1]