[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100550704":3},{"organization":4,"armGroups":7,"interventions":20,"overallOfficials":33,"centralContacts":38,"locations":47,"responsibleParty":64,"collaborators":43,"id":67,"slug":68,"hasResults":69,"nctId":70,"briefTitle":71,"officialTitle":72,"acronym":43,"eligibilityCriteria":73,"healthyVolunteers":69,"sex":74,"minAge":75,"maxAge":76,"enrollmentInfo":77,"targetDuration":43,"studyType":80,"phases":81,"briefSummary":83,"conditions":84,"keywords":86,"overallStatus":50,"whyStopped":43,"lastUpdateSubmitDate":89,"lastUpdatePostDateStruct":90,"startDateStruct":93,"completionDateStruct":95,"leadSponsor":97,"locationsCount":98},{"fullName":5,"class":6},"Cairo University","OTHER",[8,14],{"label":9,"type":10,"description":11,"interventionNames":12},"Autogenous onlay block from retromolar bone","EXPERIMENTAL","In the first intervention, a bone block harvested from the donor site was fixed with osteosynthesis titanium screws to the recipient site as an onlay graft to achieve a horizontal enlargement of the alveolar ridge.\n\n● Placement of the bone graft was always guided by an augmentation template",[13],"Procedure: Autogenous onlay bone block harvesting from retromolar bone in anterior maxilla",{"label":15,"type":16,"description":17,"interventionNames":18},"Cortical shell technique from retromolar bone","ACTIVE_COMPARATOR","The harvested cortical plate was then split longitudinally in two parts using a microsaw, and thinned with the bone scraper to achieve a plate of 1 mm thickness.\n\n* The plate was fixed at a distance from the residual ridge with 2 screws.\n* Autogenous bone particles, collected with the bone scraper, were tightly packed into the gap between the plate and the recipient site.",[19],"Procedure: Autogenous cortical shell technique from retromolar bone in anterior maxilla",[21,28],{"type":22,"name":23,"description":24,"armGroupLabels":25,"otherNames":26},"PROCEDURE","Autogenous onlay bone block harvesting from retromolar bone in anterior maxilla","Surgical protocol ( retromolar bone harvesting) After injecting local anesthesia a crestal incision is done, from a point on the occlusal surface along the external oblique ridge and extending anteriorly and inferiorly through the buccal mucosa, parallel to the gingival margin of the mandibular molars.\n\nThe subperiosteal dissection extend to expose the ascending ramus and the retromolar region With the aid of surgical carbide burs, two proximal vertical cuts penetrating the cortex of the external oblique ridge.\n\nThe depth of penetration of the posterior cut did not exceed 2.5 mm to avoid injury to the inferior alveolar nerve.\n\nBy using microsaw , an inferior cut of 3.2 mm in depth joining the anterior and posterior vertical cuts was done.\n\nSmall perforations of 3-4 mm in depth were performed on the superior aspect of the external oblique ridge using 1 mm drill bur.\n\nFinally, the block was sheared off using a chisel.",[9],[27],"Autogenous onlay block from retomolar bone",{"type":22,"name":29,"description":30,"armGroupLabels":31,"otherNames":32},"Autogenous cortical shell technique from retromolar bone in anterior maxilla","The harvested cortical plate was then split longitudinally in two parts using a microsaw, and thinned with the bone scraper to achieve a plate of 1 mm thickness.\n\nThe plate was fixed at a distance from the residual ridge with 2 screws. Autogenous bone particles, collected with the bone scraper, were tightly packed into the gap between the plate and the recipient site.",[15],[15],[34],{"name":35,"affiliation":36,"role":37},"mohamed atef, PhD","faculty of oral and dental medicine,cairo university","STUDY_DIRECTOR",[39,45],{"name":40,"role":41,"phone":42,"phoneExt":43,"email":44},"maria ibrahim nageeb, BSc","CONTACT","01002402712",null,"maria.nageeb@dentistry.cu.edu.eg",{"name":40,"role":41,"phone":42,"phoneExt":43,"email":46},"ibrahim9nageeb@gmail.com",[48],{"facility":49,"status":50,"city":51,"state":52,"zip":53,"country":54,"countryCode":55,"cosmosGeoPoint":43,"geoPoint":43,"contacts":56},"faculty of oral and dental medicine ,Cairo university","RECRUITING","Cairo","Giza Governorate","12613","Egypt","EG",[57,59,62],{"name":58,"role":41,"phone":42,"phoneExt":43,"email":44},"MARIA ibrahim nageeb, BSc",{"name":35,"role":41,"phone":60,"phoneExt":43,"email":61},"01009612708","mohammedatef@dentistery.cu.edu.eg",{"name":40,"role":63,"phone":43,"phoneExt":43,"email":43},"PRINCIPAL_INVESTIGATOR",{"type":63,"investigatorFullName":65,"investigatorTitle":66,"investigatorAffiliation":5,"oldNameTitle":43,"oldOrganization":43},"Maria Ibrahim Nageeb","Principal investigator","100550704","radiographic-and-histological-assessment-of-autogenous-onlay-block-versus-cortical-shell-on-anterior-maxilla-100550704",false,"NCT06450535","Radiographic and Histological Assessment of Autogenous Onlay Block Versus Cortical Shell on Anterior Maxilla","Radiographic and Histological Assessment of Retromolar Autogenous Onlay Bone Block Versus Cortical Shell for Augmentation of Horizontally Deficient Anterior Maxilla: (Randomized Clinical Trial).","Inclusion Criteria:\n\n* Patients in both sex with partial edentulism of the maxilla and requiring horizontal ridge augmentation\n* The ages of the patients ranged from 20 to 60 years.\n* The residual ridge width in these patients are less than 4.m\n* Sufficient bone in intra-oral donor sites are available (external oblique ridge)\n* Patients free from any systemic conditions and bone metabolism diseases that might interfere with the surgical intervention, soft tissue or hard tissue healing.\n* The vertical level should be in a favourable esthetic appearance with normal inter-arch space\n* The minimum number of missing teeth in the anterior maxilla alveolar ridge is one single extracted teeth\n\nExclusion Criteria:\n\n* Subjected to irradiation in the head and neck area less than 1 year before implantation.\n* Poor oral hygiene and motivation.\n* Uncontrolled diabetes.\n* Pregnant or nursing.\n* Substance abuse.\n* Psychiatric problems or unrealistic expectations.\n* Severe bruxism or clenching.\n* Immunosuppressed or immunocompromised.","ALL","20 Years","60 Years",{"count":78,"type":79},16,"ESTIMATED","INTERVENTIONAL",[82],"NA","Two groups of patient with horizontally deficient anterior maxilla indicated for bone augmentation ,one will be subjected to autogenous onlay bone block from retromolar bone and the other to cortical shell from retromolar bone also.",[85],"Alveolar Bone Loss",[87,88],"Autogenous onlay bone block","Cortical shell technique","2024-06-07",{"date":91,"type":92},"2024-06-10","ACTUAL",{"date":94,"type":79},"2024-07-01",{"date":96,"type":79},"2025-12-01",{"name":5,"class":6},1]