[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100457731":3},{"organization":4,"armGroups":7,"interventions":25,"overallOfficials":24,"centralContacts":24,"locations":37,"responsibleParty":56,"collaborators":24,"id":60,"slug":24,"hasResults":61,"nctId":62,"briefTitle":63,"officialTitle":64,"acronym":24,"eligibilityCriteria":65,"healthyVolunteers":66,"sex":67,"minAge":68,"maxAge":69,"enrollmentInfo":70,"targetDuration":24,"studyType":73,"phases":74,"briefSummary":76,"conditions":77,"keywords":81,"overallStatus":40,"whyStopped":24,"lastUpdateSubmitDate":85,"lastUpdatePostDateStruct":86,"startDateStruct":89,"completionDateStruct":91,"leadSponsor":93,"locationsCount":94},{"fullName":5,"class":6},"Universidad Complutense de Madrid","OTHER",[8,14,20],{"label":9,"type":10,"description":11,"interventionNames":12},"Study group","EXPERIMENTAL","\"Pontic-shield\" will be performed as ridge preservation technique.",[13],"Procedure: \"Pontic-shield\" technique",{"label":15,"type":16,"description":17,"interventionNames":18},"Positive control (ridge preservation)","ACTIVE_COMPARATOR","Deproteinized bovine bone and porcine collagen membrane will be placed after tooth extraction.",[19],"Procedure: Alveolar ridge preservation",{"label":21,"type":22,"description":23,"interventionNames":24},"Negative control (fresh socket)","NO_INTERVENTION","No intervention will be performed after tooth extraction. Blood clot will be maintained after extraction.",null,[26,33],{"type":27,"name":28,"description":29,"armGroupLabels":30,"otherNames":31},"PROCEDURE","\"Pontic-shield\" technique","A 1mm thick fragment of the vestibular aspect of the root will remain after extraction (partial extraction)",[9],[32],"Partial extraction therapy",{"type":27,"name":34,"description":35,"armGroupLabels":36,"otherNames":24},"Alveolar ridge preservation","Particulate deproteinized bovine bone and porcine collagen membrane will be placed after tooth extraction",[15],[38],{"facility":39,"status":40,"city":41,"state":24,"zip":42,"country":43,"cosmosGeoPoint":44,"geoPoint":49,"contacts":50},"Luis Miguel Sáez-Alcaide","RECRUITING","Madrid","28011","Spain",{"type":45,"coordinates":46},"Point",[47,48],-3.70256,40.4165,{"lat":48,"lon":47},[51],{"name":52,"role":53,"phone":54,"phoneExt":24,"email":55},"Luis Miguel Sáez-Alcaide, PhD Student","CONTACT","+34665101278","lsaez@ucm.es",{"type":57,"investigatorFullName":58,"investigatorTitle":59,"investigatorAffiliation":5,"oldNameTitle":24,"oldOrganization":24},"PRINCIPAL_INVESTIGATOR","Jesús Torres García Denche","Associate professor","100457731",false,"NCT05240417","\"Pontic-shield\" Technique in Alveolar Ridge Preservation","Effectiveness of \"Pontic-shield\" Technique in Alveolar Ridge Preservation: A Randomized Controlled Trial","Inclusion Criteria:\n\n* Patient from 18 to 80 years old\n* Patients who sign the informed consent\n* Need to perform extraction from second premolar to second premolar in maxilla and mandible\n\nExclusion Criteria:\n\n* Tobacco consumption (more than 10 cigarettes per day)\n* Severe systemic disease ( ASA III or IV - American Society of Anaesthesiology)\n* Drug use that could interfere with alveolar bone healing\n* Active periodontal disease\n* Acute or chronic apical pathology of the tooth",true,"ALL","18 Years","80 Years",{"count":71,"type":72},30,"ESTIMATED","INTERVENTIONAL",[75],"NA","Alveolar bone resorption after dental extraction frequently leads to situations in which long-term function and esthetic success of rehabilitations with dental implants is a challenge. \"Pontic-shield\" has been described as an alternative technique to maintain alveolar ridge after tooth extraction.\n\nThe aim of this study is to analyze the effectiveness of \"Pontic-shield\" technique in alveolar ridge preservation comparing to fresh socket and ridge preservation using deproteinized bovine bone and a porcine collagen membrane.",[78,79,80],"Tooth Extraction Status Nos","Bone Loss","Bone Resorption",[82,34,83,84],"Tooth extraction","Partial extraction therapies","Bone resorption","2024-08-19",{"date":87,"type":88},"2024-08-20","ACTUAL",{"date":90,"type":88},"2023-01-01",{"date":92,"type":72},"2024-12-01",{"name":5,"class":6},1]