[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-studies-list:{\"conditionNormalized\":\"dental-occlusion\",\"overallStatus\":[\"RECRUITING\",\"AVAILABLE\",\"NOT_YET_RECRUITING\"],\"orderBy\":\"LastUpdateSubmitDate:desc\",\"size\":25,\"offset\":0}":3,"health-study-condition:dental-occlusion":29},{"pageToken":4,"total":5,"offset":6,"count":5,"results":7},null,6,0,[8,49,79,110,135,161],{"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":36,"whyStopped":4,"lastUpdateSubmitDate":37,"lastUpdatePostDateStruct":38,"startDateStruct":41,"completionDateStruct":43,"leadSponsor":45,"locationsCount":48},"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":21,"type":22},46,"ESTIMATED","INTERVENTIONAL",[25],"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.",[28,29,30],"Dental Caries","Dental Occlusion","Pediatric Dentistry",[32,33,34,35],"Hall Technique","Occlusal adjustment","Occlusal vertical dimension","Intraoral scanning","NOT_YET_RECRUITING","2026-04-14",{"date":39,"type":40},"2026-04-17","ACTUAL",{"date":42,"type":22},"2026-06-01",{"date":44,"type":22},"2027-12-01",{"name":46,"class":47},"Ankara Yildirim Beyazıt University","OTHER",1,{"id":50,"slug":51,"hasResults":11,"nctId":52,"briefTitle":53,"officialTitle":53,"acronym":4,"eligibilityCriteria":54,"healthyVolunteers":16,"sex":17,"minAge":55,"maxAge":56,"enrollmentInfo":57,"targetDuration":4,"studyType":59,"phases":4,"briefSummary":60,"conditions":61,"keywords":64,"overallStatus":36,"whyStopped":4,"lastUpdateSubmitDate":70,"lastUpdatePostDateStruct":71,"startDateStruct":73,"completionDateStruct":75,"leadSponsor":77,"locationsCount":4},"100614479","evaluation-of-occlusal-adjustment-material-removal-on-monolithic-zirconia-blocks-an-in-vitro-study-100614479","NCT07280130","Evaluation of Occlusal Adjustment Material Removal on Monolithic Zirconia Blocks: An In Vitro Study","Inclusion Criteria:\n\nGroup A: Forty fourth-year dental students who have completed preclinical courses in operative dentistry, complete denture prosthodontics, and fixed prosthodontics (Part I). They have little to no experience in adjusting zirconia.\n\nGroup B: Forty sixth-year dental interns. Each participant will be tested twice-once before and once near the end of their clinical training. A questionnaire will also record their prosthodontic clinical experience within the past year.\n\nGroup C: Forty licensed clinicians with 0-5 years of post-graduation experience (with practical experience in zirconia adjustment). A questionnaire will also document their clinical experience in prosthodontics.\n\nExclusion Criteria:\n\n* Acute upper-limb\u002Fhand injuries or postoperative recovery within the past 3 months that may affect grip strength or fine motor control.\n* Neuromuscular disorders or tremor\u002Fpostural control impairments (e.g., essential tremor, peripheral neuropathy, moderate to severe carpal tunnel syndrome) that prevent stable operation.\n* Uncorrected or inadequately corrected vision that does not meet the requirements for close-range tasks (e.g., inability to clearly see fine markings at a distance of 30-40 cm even with correction).\n* Inability to follow the metronome rhythm (100 beats per minute).","20 Years","40 Years",{"count":58,"type":22},120,"OBSERVATIONAL","This study aims to improve understanding of the amount of tooth-replacement material removed during a single grinding \"stroke\" performed in the adjustment of a zirconia crown. Zirconia is a highly durable ceramic material commonly used for dental restorations, and accurate adjustment is essential for achieving proper occlusion. However, existing literature does not provide quantitative data regarding material removal per stroke during chairside adjustment, resulting in reliance on individual clinical experience.\n\nIn this study, standardized zirconia specimens will be prepared and assigned to three operator groups: dental students, dental interns, and experienced clinicians. Each participant will perform a controlled number of grinding strokes on the specimens using a commonly used dental grinding stone. Specimens will be scanned before and after grinding using a three-dimensional scanner to precisely quantify material removal.\n\nHypothesis\n\nThe hypotheses of this study are:\n\nEach grinding stroke results in a measurable and relatively consistent amount of zirconia material removal.\n\nExperienced clinicians demonstrate more controlled and predictable material removal per stroke compared with students and interns.",[29,62,63],"Occlusal Wear of Teeth","Fixed Dental Prosthesis",[65,66,67,68,69],"occlusal adjustment","Monolithic zirconia","Material removal","Silicon carbide stone","3D scan registration","2025-12-23",{"date":72,"type":40},"2025-12-30",{"date":74,"type":22},"2026-02-01",{"date":76,"type":22},"2027-12-31",{"name":78,"class":47},"National Taiwan University Hospital",{"id":80,"slug":81,"hasResults":11,"nctId":82,"briefTitle":83,"officialTitle":84,"acronym":4,"eligibilityCriteria":85,"healthyVolunteers":11,"sex":17,"minAge":18,"maxAge":86,"enrollmentInfo":87,"targetDuration":4,"studyType":23,"phases":89,"briefSummary":90,"conditions":91,"keywords":95,"overallStatus":36,"whyStopped":4,"lastUpdateSubmitDate":101,"lastUpdatePostDateStruct":102,"startDateStruct":104,"completionDateStruct":106,"leadSponsor":108,"locationsCount":48},"100614226","digital-occlusal-analysis-and-bite-force-evaluation-of-primary-molars-restored-with-zirconia-crowns-using-t-scan-100614226","NCT07276841","Digital Occlusal Analysis and Bite Force Evaluation of Primary Molars Restored With Zirconia Crowns Using T-Scan","Digital Occlusal Analysis and Bite Force Evaluation of Pulp Treated Primary Molars Restored With Zirconia Crowns Using T-Scan: An Experimental Before-and-After Study","Inclusion Criteria:\n\n* Children aged 6 to 9 years.\n* Both boys and girls can participate.\n* A pulp-treated primary molar (pulpotomy) that is healthy and shows no pain, no swelling, no mobility, and no radiographic problems (such as internal resorption or infection).\n* The lower first permanent molar must be erupted.\n* The child is cooperative during dental treatment (positive behavior on the Frankl scale).\n* The child has no missing teeth.\n* The child has a normal bite (normal overjet and overbite).\n* The child is generally healthy with no systemic diseases, to ensure they can attend follow-ups.\n\nExclusion Criteria:\n\n* Children with medical conditions or who are uncooperative during dental care.\n* Children with parafunctional habits, such as teeth grinding (bruxism), thumb-sucking, or other habits that may affect bite-force measurements.\n* Teeth that are close to falling out, have severe root resorption, or need extraction.\n* Teeth with deep cavities below the gum line that prevent proper crown placement.\n* Teeth that are mobile (Miller's Grade 2 or higher).\n* Teeth that have had previous pulp therapy other than the included pulpotomy.\n* Children who are unable to attend follow-up visits or whose parents do not agree to participate.","9 Years",{"count":88,"type":22},11,[25],"The goal of this observational study is to evaluate the adaptation of occlusion and bite force after zirconia crown restoration in children with pulp-treated primary molars. The main questions it aims to answer are:\n\nHow does occlusion adapt after placement of zirconia crowns?\n\nDoes bite force change following crown restoration?\n\nParticipants will:\n\nUndergo routine pulp treatment and restoration of primary molars with zirconia crowns.\n\nHave bite force and occlusal contacts measured using the T-Scan digital occlusal analysis system before and after crown placement.",[29,92,93,94],"Primary Teeth","Pulp-treated Primary Molars","Zirconia Crowns",[96,97,30,98,99,92,100],"Occlusion","Bite Force","Zirconia Crown","T-Scan","Restorative Dentistry","2025-11-30",{"date":103,"type":40},"2025-12-11",{"date":105,"type":22},"2026-01",{"date":107,"type":22},"2026-03",{"name":109,"class":47},"Cairo University",{"id":111,"slug":112,"hasResults":11,"nctId":113,"briefTitle":114,"officialTitle":115,"acronym":4,"eligibilityCriteria":116,"healthyVolunteers":16,"sex":17,"minAge":117,"maxAge":118,"enrollmentInfo":119,"targetDuration":4,"studyType":23,"phases":121,"briefSummary":122,"conditions":123,"keywords":124,"overallStatus":126,"whyStopped":4,"lastUpdateSubmitDate":127,"lastUpdatePostDateStruct":128,"startDateStruct":130,"completionDateStruct":132,"leadSponsor":134,"locationsCount":48},"100603253","occlusal-impact-of-hall-crowns-in-primary-molars-100603253","NCT07134114","Occlusal Impact of Hall Crowns in Primary Molars","Comparative Evaluation of Occlusal Changes Following Hall Technique Crowns in Different Primary Molar Groups: A Randomized Controlled Clinical Trial","Inclusion Criteria:\n\nInclusion Criteria for Participants\n\n* No skeletal or dental anomalies,\n* ASA (American Society of Anesthesiologists) physical status classification of I or II ,\n* Frankl Behavior Rating Scale score of 3 or 4,\n* In the mixed dentition stage,\n* Fully erupted permanent first molars in occlusal contact at maximum intercuspation\n* No acute dental pain or need for emergency treatment,\n* Presence of at least two primary molars with carious lesions scored as 3, 4, or 5 according to the ICDAS (International Caries Detection and Assessment System),\n* Presence of an antagonist tooth for the molar planned to receive Hall Technique,\n* Provision of verbal and written informed consent by the participant and legal guardian after reading or listening to the consent form and fully understanding its content.\n\nInclusion Criteria for Tooth\n\nBased on Clinical Examination:\n\n* No history of prolonged pain in response to thermal or chemical stimuli, or spontaneous pain suggestive of irreversible pulpitis,\n* No sensitivity to percussion or palpation,\n* Absence of both pathological and physiological mobility,\n* No signs of swelling, fistula, or discoloration,\n* Sufficient remaining tooth structure to retain a preformed stainless steel crown.\n\nBased on Radiographic Examination:\n\n* Radiolucent lesion associated with dental caries located within the outer one-third to two-thirds of the dentin, with a visible band of normal dentin between the lesion and the pulp,\n* At least two-thirds of root length present,\n* No signs of internal or external pathological or physiological root resorption,\n* Intact lamina dura and normal periodontal ligament space,\n* No periradicular bone loss surrounding the roots,\n* No calcified masses in the pulp chamber.\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","7 Years","10 Years",{"count":120,"type":22},60,[25],"Hall Technique is a non-invasive restorative approach for managing carious primary molars, increasingly used in pediatric dentistry due to its simplicity and patient tolerance. This study aims to evaluate and compare the occlusal changes that occur following Hall crown placement on different primary molar groups (maxillary first molar, maxillary second molar, mandibular first molar, mandibular second molar) using digital model analysis.",[28,29,30],[125,33,35],"Hall technique","RECRUITING","2025-11-19",{"date":129,"type":40},"2025-11-20",{"date":131,"type":40},"2025-09-15",{"date":133,"type":22},"2026-12-15",{"name":46,"class":47},{"id":136,"slug":137,"hasResults":11,"nctId":138,"briefTitle":139,"officialTitle":140,"acronym":4,"eligibilityCriteria":141,"healthyVolunteers":11,"sex":17,"minAge":142,"maxAge":4,"enrollmentInfo":143,"targetDuration":4,"studyType":23,"phases":145,"briefSummary":146,"conditions":147,"keywords":149,"overallStatus":36,"whyStopped":4,"lastUpdateSubmitDate":154,"lastUpdatePostDateStruct":155,"startDateStruct":157,"completionDateStruct":158,"leadSponsor":159,"locationsCount":4},"100605557","digital-vs-conventional-prosthetic-rehab--occlusal-analysis-in-edentulous-patients-100605557","NCT07164066","Digital vs Conventional Prosthetic Rehab & Occlusal Analysis in Edentulous Patients","A Comparative Analysis of Digital and Conventional Techniques for Prosthetic Rehabilitation of Edentulous Patients in Dubai.","Inclusion Criteria:\n\n* Adults above the age of eighteen years seeking replacement of missing teeth\n* Edentulous patients 6 months after extraction of any teeth\n* Males and Females\n\nExclusion Criteria:\n\n* Temporomandibular Joint Disorders(TMD)\n* Limited mouth opening\n* History of Head and neck oncology\n* Conditions- such as Psychiatric conditions and Neurological conditions-, such as Parkinson's disease and Alzheimer's","18 Years",{"count":144,"type":22},15,[25],"15 Patients requiring complete dentures will be recruited from Dubai Health. Each patient will receive two sets of dentures with a washout period between sets. Patients will remain blinded to the fabrication method used for each set.\n\n* Group 1: Participants will first receive conventionally fabricated dentures for both the upper and lower jaws. This set will be made using traditional techniques, including impressions, a custom tray, jaw relation recording, try-in, and final fitting. After the washout period, they will receive a second set created with the 3D-printed technique.\n* Group 2: Participants in this group will initially receive 3D-printed complete dentures through a digital workflow, which involves intraoral scanning, STL file export, digital design, design review with the patient, 3D printing, and final fitting. Following the washout period, they will then receive a conventionally fabricated set.",[148,29],"Edentulous Complete Denture Wearers",[150,151,152,153,96],"Edentulism","Digital Occlusal Analysis","Digital Dentures","Quality of life","2025-09-02",{"date":156,"type":40},"2025-09-09",{"date":131,"type":22},{"date":76,"type":22},{"name":160,"class":47},"Mohammed Bin Rashid University of Medicine and Health Sciences",{"id":162,"slug":163,"hasResults":11,"nctId":164,"briefTitle":165,"officialTitle":166,"acronym":167,"eligibilityCriteria":168,"healthyVolunteers":16,"sex":17,"minAge":169,"maxAge":4,"enrollmentInfo":170,"targetDuration":4,"studyType":23,"phases":172,"briefSummary":173,"conditions":174,"keywords":175,"overallStatus":126,"whyStopped":4,"lastUpdateSubmitDate":179,"lastUpdatePostDateStruct":180,"startDateStruct":182,"completionDateStruct":184,"leadSponsor":186,"locationsCount":48},"100551693","patient-perception-and-oral-function-of-implant-restorations-100551693","NCT06463405","Patient Perception and Oral Function of Implant Restorations","Patient Perception and Oral Function of Implant-supported Restorations Replacing Posterior Teeth","REPLACE","Inclusion Criteria:\n\n* Partially edentulous subjects with missing posterior teeth (Kennedy class I or class II) in the upper or lower jaw, in need for fixed implant-supported crowns to replace the missing teeth are offered to be enrolled if they fulfill the following inclusion criteria. The participants must be in good health and with no contraindications for undergoing dento-alveolar surgery.\n\nExclusion Criteria:\n\n* Untreated or active, progressive periodontitis\n* Intake of (high dose) antiresorptive medicine or earlier medication related osteonecrosis of the jaw\n* Therapeutic radiation to the head and neck\n* Uncontrolled diabetes or systemic corticosteroids\n* Heavy smoking (\\>20 cigarettes\u002Fday)\n* An inability to open the mouth wide enough to place implants\n* Decayed or unrestored anterior\u002Fpremolar teeth\n* Need for major bone augmentation (e.g., bone block graft, extensive augmentations with second operation for implant insertion)\n* \\\u003C 8 mm bone height to the alveolar nerve or sinus maxillaris\n* Parafunctional habits or untreated temporomandibular dysfunctions or orofacial pain\n* Unable to cooperate or too ill to complete the experiment\n* Lack of signed informed consent","30 Years",{"count":171,"type":22},20,[25],"The overall aim is to evaluate the patient-reported outcome and efficiency of replacing posterior teeth with implant-supported crowns compared to RDPs and no treatment. Sub-aims are to evaluate a new 3D-methods for registration of occlusion and to test two crown designs.\n\nThus, the study design has three aims:\n\n* To analyze patient perception including OHRQoL, when missing posterior teeth are replaced with implant-supported crowns compared to removable dental prostheses (RDPs) or no replacement.\n* To develop and validate new 3D digital methods for assessing occlusal contacts between upper and lower jaw and to analyze the methods relation to masticatory ability and efficiency.\n* To compare the difference in biological technical outcomes between splinted and non-splinted implant-supported crowns over time.",[29],[176,177,178],"Removable Partial Dentures","Dental Implants","Jaw relation record","2024-07-03",{"date":181,"type":40},"2024-07-05",{"date":183,"type":40},"2024-03-01",{"date":185,"type":22},"2028-01-31",{"name":187,"class":47},"University of Copenhagen"]