[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100635093":3},{"organization":4,"armGroups":7,"interventions":24,"overallOfficials":48,"centralContacts":53,"locations":62,"responsibleParty":77,"collaborators":58,"id":80,"slug":81,"hasResults":82,"nctId":83,"briefTitle":84,"officialTitle":85,"acronym":86,"eligibilityCriteria":87,"healthyVolunteers":82,"sex":88,"minAge":89,"maxAge":90,"enrollmentInfo":91,"targetDuration":58,"studyType":94,"phases":95,"briefSummary":97,"conditions":98,"keywords":58,"overallStatus":65,"whyStopped":58,"lastUpdateSubmitDate":101,"lastUpdatePostDateStruct":102,"startDateStruct":105,"completionDateStruct":107,"leadSponsor":109,"locationsCount":110},{"fullName":5,"class":6},"Ain Shams University","OTHER",[8,14,19],{"label":9,"type":10,"description":11,"interventionNames":12},"Surgical Tube Technique","EXPERIMENTAL","Participants in this arm will receive surgical reconstruction of the interdental papilla using the tube grafting technique. The procedure involves local anesthesia, preparation of the recipient site, and placement of a connective tissue graft to augment the interdental papilla. The graft will be stabilized to promote papillary regeneration and closure of the black triangle.",[13],"Procedure: Tube Grafting Technique for Papilla Reconstruction",{"label":15,"type":10,"description":16,"interventionNames":17},"Hyaluronic Acid Injection","Participants in this arm will receive papillary augmentation using hyaluronic acid gel injection. A controlled volume of cross-linked hyaluronic acid (\\\u003C0.2 ml) will be injected into the interdental papilla to increase tissue volume and reduce the appearance of the black triangle.",[18],"Drug: Hyaluronic Acid (HA)",{"label":20,"type":10,"description":21,"interventionNames":22},"Injection Molding Restorative Technique","Participants in this arm will receive restorative treatment using the injection molding composite technique. A matrix system will be used to guide composite placement, and heated flowable composite resin will be injected to modify proximal tooth contours and reduce the gingival embrasure space responsible for the black triangle.",[23],"Procedure: Injection Molding Composite Technique",[25,33,41],{"type":26,"name":27,"description":28,"armGroupLabels":29,"otherNames":30},"PROCEDURE","Tube Grafting Technique for Papilla Reconstruction","A surgical procedure used to reconstruct the interdental papilla for management of black triangles. Under local anesthesia, the recipient papillary area is prepared and a connective tissue graft is harvested and shaped using the tube grafting technique. The graft is inserted into the interdental area and stabilized to increase papillary volume and promote soft-tissue regeneration. The aim is to biologically reconstruct the lost papilla and reduce the gingival embrasure space.",[9],[31,32],"Papilla Tube Technique","Interdental Papilla Reconstruction Surgery",{"type":34,"name":35,"description":36,"armGroupLabels":37,"otherNames":38},"DRUG","Hyaluronic Acid (HA)","A minimally invasive papillary augmentation procedure using injectable cross-linked hyaluronic acid gel. A controlled volume of hyaluronic acid (\\\u003C0.2 ml) is injected directly into the interdental papilla using a fine needle to increase tissue volume and improve papillary contour. The treatment aims to reduce the appearance of black triangles by enhancing soft-tissue fullness in the interdental region.",[15],[39,40],"Cross-linked Hyaluronic Acid","HA Dermal Filler",{"type":26,"name":42,"description":43,"armGroupLabels":44,"otherNames":45},"Injection Molding Composite Technique","A restorative approach used to reduce the appearance of black triangles by modifying proximal tooth contours. A matrix system is used to guide the restoration, and a bonding agent is applied followed by injection of heated flowable composite resin. The composite is shaped to alter the emergence profile and reduce the gingival embrasure space, thereby improving interdental papilla support and esthetics.",[20],[46,47],"Bioclear Injection Molding Technique","Composite Injection Technique",[49],{"name":50,"affiliation":51,"role":52},"Fatma E.A. Fatma E.A., PHD","Assistant Professor Of Oral Medicine, Periodontology, Oral Diagnosis","PRINCIPAL_INVESTIGATOR",[54,60],{"name":55,"role":56,"phone":57,"phoneExt":58,"email":59},"Fatma E.A. Hassanein, PHD","CONTACT","+201000093885",null,"fatma.hassanein@ksiu.edu.eg",{"name":55,"role":56,"phone":61,"phoneExt":58,"email":59},"01000093885",[63],{"facility":64,"status":65,"city":66,"state":58,"zip":58,"country":67,"countryCode":68,"cosmosGeoPoint":69,"geoPoint":74,"contacts":75},"Faculty of Dentistry, King Salman International University","RECRUITING","Cairo","Egypt","EG",{"type":70,"coordinates":71},"Point",[72,73],31.24967,30.06263,{"lat":73,"lon":72},[76],{"name":55,"role":56,"phone":61,"phoneExt":58,"email":59},{"type":52,"investigatorFullName":78,"investigatorTitle":79,"investigatorAffiliation":5,"oldNameTitle":58,"oldOrganization":58},"Fatma ElSayed","assistant professor of oral medicine and periodontology","100635093","clinical-evaluation-of-different-treatments-for-interdental-black-triangles-100635093",false,"NCT07548203","Clinical Evaluation of Different Treatments for Interdental Black Triangles","Efficacy of Nonsurgical Versus Surgical Management of Black Triangles: A Randomized Clinical Trial","BT-RCT","Inclusion Criteria:\n\n* Adults aged 18 to 50 years.\n\nPresence of interdental black triangle classified as Nordland and Tarnow Class I or Class II.\n\nRadiographic evidence of adequate interdental bone support, defined as ≤5 mm distance from the contact point to the alveolar crest.\n\nSystemically healthy individuals with no medical conditions affecting wound healing.\n\nPatients willing to participate in the study and attend follow-up visits at 3 and 6 months.\n\nExclusion Criteria:\n\n* Patients with systemic diseases that may impair wound healing.\n\nPresence of teeth with acute periapical pathology.\n\nPresence of periodontal pockets or active periodontal disease.\n\nPregnant or lactating women.\n\nPatients with parafunctional habits (e.g., bruxism).\n\nSmokers, alcoholics, or drug abusers.","ALL","18 Years","50 Years",{"count":92,"type":93},30,"ESTIMATED","INTERVENTIONAL",[96],"NA","This randomized clinical trial aims to evaluate and compare the effectiveness of surgical and nonsurgical treatment approaches for the management of interdental black triangles. Black triangles are open gingival embrasures caused by the loss or deficiency of the interdental papilla between adjacent teeth. These spaces are a common esthetic concern and may also contribute to food impaction and periodontal problems.\n\nThirty adult patients presenting with interdental papillary loss classified as Nordland and Tarnow Class I or II will be recruited from the outpatient clinics of the Faculty of Dentistry at King Salman International University. Eligible participants will be randomly assigned to one of three treatment groups: surgical reconstruction using the tube grafting technique, papillary augmentation using hyaluronic acid injection, or a restorative approach using the injection molding composite technique.\n\nClinical and photographic assessments will be performed at baseline and during follow-up visits at 3 and 6 months after treatment. The primary outcomes will be the reduction in black triangle surface area and height. Secondary outcomes will include clinical periodontal parameters such as plaque index, bleeding score, probing pocket depth, and clinical attachment level. Patient satisfaction with the esthetic outcome will also be evaluated using a Visual Analog Scale (VAS).\n\nThe findings of this study are expected to provide evidence regarding the comparative effectiveness of surgical and nonsurgical approaches for the management of interdental black triangles and help clinicians select the most predictable treatment modality for improving esthetic outcomes.",[99,100],"Black Triangles Syndrome (BTS)","Papilla Reconstruction","2026-04-21",{"date":103,"type":104},"2026-04-23","ACTUAL",{"date":106,"type":93},"2026-04-22",{"date":108,"type":93},"2026-10-15",{"name":5,"class":6},1]