[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-studies-list:{\"conditionNormalized\":\"severe-alveolar-bone-atrophy-of-the-posterior-maxilla-with-residual-bone-height-4-mm\",\"overallStatus\":[\"RECRUITING\",\"AVAILABLE\",\"NOT_YET_RECRUITING\"],\"orderBy\":\"LastUpdateSubmitDate:desc\",\"size\":25,\"offset\":0}":3,"health-study-condition:severe-alveolar-bone-atrophy-of-the-posterior-maxilla-with-residual-bone-height-4-mm":28},{"pageToken":4,"total":5,"offset":6,"count":5,"results":7},null,1,0,[8],{"id":9,"slug":10,"hasResults":11,"nctId":12,"briefTitle":13,"officialTitle":14,"acronym":15,"eligibilityCriteria":16,"healthyVolunteers":11,"sex":17,"minAge":18,"maxAge":19,"enrollmentInfo":20,"targetDuration":4,"studyType":23,"phases":24,"briefSummary":26,"conditions":27,"keywords":29,"overallStatus":33,"whyStopped":4,"lastUpdateSubmitDate":34,"lastUpdatePostDateStruct":35,"startDateStruct":38,"completionDateStruct":40,"leadSponsor":42,"locationsCount":5},"100638909","using-chin-bone-rings-for-sinus-lifting-and-dental-implants-in-one-surgery-100638909",false,"NCT07619846","Using Chin Bone Rings for Sinus Lifting and Dental Implants in One Surgery","Evaluation of Effectiveness of Bone Ring Technique in One Stage Surgery of External Maxillary Sinus Lifting With Implantation: A Prospective Case Series","BRT-SINUS","Inclusion Criteria:\n\n* Need for dental implant in posterior maxilla (premolar\u002Fmolar).\n* Residual alveolar bone height ≤4 mm on preoperative CBCT.\n* Age ≥18 years.\n* Controlled systemic health.\n* Able to comply with procedures and follow up.\n* Good oral hygiene.\n* Signed written informed consent.\n\nExclusion Criteria:\n\n* Uncontrolled systemic disease.\n* Head\u002Fneck radiotherapy.\n* Bisphosphonate therapy \\>3 years.\n* Autoimmune disease affecting healing.\n* Pregnancy\u002Flactation.\n* Active maxillary sinus pathology (sinusitis, cysts, polyps, tumours).\n* Heavy smoking (\\>10 cigarettes\u002Fday).\n* Severe bruxism.","ALL","18 Years","70 Years",{"count":21,"type":22},10,"ESTIMATED","INTERVENTIONAL",[25],"NA","This study evaluates the Bone Ring Technique, a single stage procedure that combines external sinus floor elevation and dental implant placement using an autogenous bone ring harvested from the chin. Ten patients with residual alveolar bone height ≤4 mm in the posterior maxilla will be enrolled. Implant stability (ISQ), vertical bone gain, peri implant bone density, and implant survival will be assessed over 6 months. The aim is to reduce treatment time and surgical interventions compared to traditional two stage approaches.",[28],"Severe Alveolar Bone Atrophy of the Posterior Maxilla With Residual Bone Height ≤4 mm",[30,31,32],"Bone Ring Technique","Maxillary Sinus Floor Elevation","Dental Implant","NOT_YET_RECRUITING","2026-06-03",{"date":36,"type":37},"2026-06-04","ACTUAL",{"date":39,"type":22},"2026-05-31",{"date":41,"type":22},"2027-03-21",{"name":43,"class":44},"Damascus University","OTHER"]