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. Group A, received ABG cylinders obtained from the chin and organic bovine bone mineral particles (Bio-Oss xenograft) along with an absorbable collagen membrane. ABG cylinders from the chin and biphasic alloplastic (EthOss) grafting material made of CS (35%) and TCP (65%) were given to Group B. CBCT scans were conducted before bone augmentation surgery, one week and 6 months postoperatively
Two groups of forty patients participated in this prospective, controlled, randomized clinical investigation. Group A, received ABG cylinders obtained from the chin and organic bovine bone mineral particles (Bio-Oss xenograft) along with an absorbable collagen membrane. ABG cylinders from the chin and biphasic alloplastic (EthOss) grafting material made of CS (35%) and TCP (65%) were given to Group B. CBCT scans were conducted before bone augmentation surgery, one week and 6 months postoperatively
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| ABG + Xenograft + Collagen Membrane | Experimental | Patients receive autogenous bone block graft (from chin) combined with particulate bovine xenograft (Bio-Oss, Geistlich Pharma AG) and covered with absorbable collagen membrane (Bio-Gide). |
|
| ABG + EthOss (Synthetic Graft) | Experimental | Patients receive autogenous bone block graft (from chin) combined with EthOss, a biphasic synthetic graft material (35% calcium sulfate, 65% β-tricalcium phosphate). |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Autogenous Bone Block + Xenograft + Collagen Membrane | Procedure | Autogenous chin bone block graft combined with particulate bovine xenograft (Bio-Oss, Geistlich Pharma AG) and covered with an absorbable collagen membrane (Bio-Gide). |
| Measure | Description | Time Frame |
|---|---|---|
| Change in horizontal alveolar ridge width | Baseline, 1 week, and 6 months post-surgery |
| Measure | Description | Time Frame |
|---|---|---|
| Postoperative complications | Up to 6 months post-surgery |
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Inclusion Criteria:
Horizontal alveolar bone deficiency <4 mm (Cawood & Howell Class III-IV)
Satisfactory oral hygiene
No previous bone augmentation at study site
Exclusion Criteria:
History of head/neck irradiation or immunosuppression
Oral lesions (e.g., lichen planus)
Ongoing or recent IV bisphosphonate therapy
Untreated periodontitis or poor oral hygiene
Parafunctional habits, pregnancy, psychiatric disorders
Recent tobacco use
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Faculty of Oral and Dental Medicine, Nahda University,Taibah University | Cairo | Egypt |
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| ID | Term |
|---|---|
| D014183 | Transplantation, Heterologous |
| ID | Term |
|---|---|
| D014180 | Transplantation |
| D013514 | Surgical Procedures, Operative |
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