[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-studies-list:{\"conditionNormalized\":\"guided-surgery\",\"overallStatus\":[\"RECRUITING\",\"AVAILABLE\",\"NOT_YET_RECRUITING\"],\"orderBy\":\"LastUpdateSubmitDate:desc\",\"size\":25,\"offset\":0}":3,"health-study-condition:guided-surgery":29},{"pageToken":4,"total":5,"offset":6,"count":5,"results":7},null,2,0,[8,52],{"id":9,"slug":10,"hasResults":11,"nctId":12,"briefTitle":13,"officialTitle":14,"acronym":15,"eligibilityCriteria":16,"healthyVolunteers":11,"sex":17,"minAge":18,"maxAge":4,"enrollmentInfo":19,"targetDuration":4,"studyType":22,"phases":23,"briefSummary":25,"conditions":26,"keywords":32,"overallStatus":39,"whyStopped":4,"lastUpdateSubmitDate":40,"lastUpdatePostDateStruct":41,"startDateStruct":44,"completionDateStruct":46,"leadSponsor":48,"locationsCount":51},"100635310","evaluation-of-zygomatic-implant-placement-accuracy-using-fully-metallic-vs-resin-based-static-surgical-guides-in-severely-atrophic-maxilla-100635310",false,"NCT07551024","Evaluation of Zygomatic Implant Placement Accuracy Using Fully Metallic vs Resin-based Static Surgical Guides in Severely Atrophic Maxilla","Evaluation of Zygomatic Implant Placement Accuracy Using Fully Metallic vs Resin-based Surgical Guides in Severely Atrophic Maxilla.","guided surgery","Inclusion Criteria:\n\n* Patients ≥18 years with severely atrophic maxilla.\n* Acquired maxillary defects resulting from trauma, pathology, or previous surgical resection.\n* Indicated for zygomatic implant-supported fixed prosthesis.\n* Sufficient mouth opening for zygomatic implants placement.\n* Patients willing to sign informed consent and attend follow-ups.\n\nExclusion Criteria:\n\n* Uncontrolled systemic disease affecting healing (e.g., uncontrolled diabetes, etc).\n* Heavy smokers\n* Previous radiotherapy or bisphosphonate therapy.\n* Active sinus or nasal infection.\n* Severe parafunctional habits (e.g., bruxism).\n* Pregnant or lactating women.\n* Patients with psychiatric disorders affecting compliance.","ALL","18 Years",{"count":20,"type":21},4,"ESTIMATED","INTERVENTIONAL",[24],"NA","Some patients lose a large amount of bone in the upper jaw. When this happens, it can be difficult to place regular dental implants. In these cases, special implants called zygomatic implants can be used. These implants are longer than normal implants and are fixed in the cheekbone, which usually has enough bone to support them. They can help support fixed teeth for patients with severe bone loss in the upper jaw.\n\nPlacing zygomatic implants requires careful planning and high accuracy. To help guide the surgeon during the operation, a surgical guide can be used. A surgical guide is a custom-made device that helps the surgeon place the implant in the planned position.\n\nSurgical guides can be made from different materials. The most common type is made from resin (a strong plastic material) using 3D printing. Recently, fully metallic surgical guides have been developed. These metal guides may be stronger and more stable during surgery, but it is not yet clear if they improve the accuracy of implant placement.\n\nThe purpose of this study is to compare the accuracy of metal surgical guides and resin surgical guides when placing zygomatic implants in patients with severe bone loss in the upper jaw.\n\nPatients included in the study will undergo a clinical examination and a CT scan before surgery to plan the implant positions. During the surgery, each patient will receive zygomatic implants on both sides of the upper jaw. On one side, the implants will be placed using a metal surgical guide, and on the other side, they will be placed using a resin surgical guide. This allows the two types of guides to be compared in the same patient.\n\nAfter the surgery, another CT scan will be taken to check the final position of the implants. The planned implant position will be compared with the actual position after surgery to measure the accuracy of placement.\n\nThe results of this study will help determine whether metallic surgical guides or resin surgical guides provide better accuracy when placing zygomatic implants.\n\nParticipation in this study is voluntary. All patients will receive full information about the study and will sign a consent form before participating.",[27,28,29,30,31],"Atrophic Edentulous Maxilla","Zygomatic Implants","Guided Surgery","Dental Implant","Accuracy of Dental Implant Placement",[33,34,35,36,37,38],"Zygomatic implants","Severely atrophic maxilla","Surgical guides","Dental implant placement accuracy","Metal surgical guide","Resin surgical guide","RECRUITING","2026-05-04",{"date":42,"type":43},"2026-05-07","ACTUAL",{"date":45,"type":43},"2025-11-03",{"date":47,"type":21},"2026-06",{"name":49,"class":50},"Future University in Egypt","OTHER",1,{"id":53,"slug":54,"hasResults":11,"nctId":55,"briefTitle":56,"officialTitle":57,"acronym":4,"eligibilityCriteria":58,"healthyVolunteers":11,"sex":17,"minAge":18,"maxAge":59,"enrollmentInfo":60,"targetDuration":4,"studyType":22,"phases":62,"briefSummary":63,"conditions":64,"keywords":67,"overallStatus":73,"whyStopped":4,"lastUpdateSubmitDate":74,"lastUpdatePostDateStruct":75,"startDateStruct":77,"completionDateStruct":79,"leadSponsor":81,"locationsCount":4},"100618939","computer-guided-split-thickness-versus-full-thickness-flap-buccal-bone-lid-approach-in-hard-mandibular-pathosis-100618939","NCT07338136","Computer Guided Split Thickness Versus Full Thickness Flap Buccal Bone Lid Approach in Hard Mandibular Pathosis","Computer Guided Split Thickness Versus Full Thickness Flap Buccal Bone Lid Approach in Hard Mandibular Pathosis: Randomized Control Trial RCT","Inclusion criteria:\n\n* No sex predilection.\n* Age: 18 to 40\n* mandibular intra-bony hard pathosis with a diameter ≥1cm with a buccal cortex thickness ≥1mm\n\nExclusion criteria:\n\n* Systemic or local disease\u002F condition that could affect bone healing\n* Diabetics\n* patients on systemic corticosteroid\n* chemotherapy\n* radiotherapy","40 Years",{"count":61,"type":21},26,[24],"* Full thickness Buccal bone lid approach is well known and well reported technique with a superiority on preserving bone volume and better bone healing especially when done using piezoelectrical devices when compared to conventional technique for management of mandibular pathosis, however periosteum disturbance have a negative role regarding vascularity and bone healing, by comparing the split thickness VS full thickness flap design with buccal bone lid approach, this study will highlight if the periosteum preserved attached to the lid improve the healing on mandibular bony pathosis.\n* Aim of the study:\n\ndetermine the effect of split thickness flap vs full thickness flap using a guided bone lid in hard mandibular pathosis in term of bone healing.",[65,29,66],"Mandibular Diseases","Guided Surgery Accuracy",[68,69,70,71,72],"buccal bone lid","split thickness flap","computer guided surgery","mandibular pathosis","impacted tooth","NOT_YET_RECRUITING","2026-01-13",{"date":76,"type":43},"2026-01-15",{"date":78,"type":21},"2026-02",{"date":80,"type":21},"2027-04",{"name":82,"class":50},"Cairo University"]