Department of Oral and Maxillofacial Surgery, Government Dental College and Hospital, Nagpur, Maharashtra, 440003, India.
Oral Maxillofac Surg. 2024 Mar;28(1):315-321. doi: 10.1007/s10006-023-01145-7. Epub 2023 Feb 24.
The aim of present study was to compare and evaluate the maxillary alveolar ridge formation and ridge continuity using cancellous and corticocanellous bone graft harvested from anterior iliac crest for complete secondary unilateral cleft alveolus defects.
All patients were randomized into two groups for secondary alveolar bone grafting. Group I (n = 10) patients treated with cancellous particulate bone graft and group II (n = 10) patients treated with cortico-cancellous block graft. Maxillary alveolar ridge bone formation was assessed with the help of cone beam computed tomography (CBCT) scan using Planmeca Romexis Viewer 5.0 software. Maxillary alveolar ridge continuity was assessed with axial section of CBCT scan and clinical occlusal photograph. Preoperative CBCT scan and occlusal photographs were compared with post-op 6-month CBCT scan and occlusal photographs.
The mean preoperative volume of cleft defect in group I was 4.2576 cm whereas in group II it was 4.2268 cm. The mean postoperative bone bridge formation after 6 months in group I was 4.055 cm whereas in group II it was 3.8103 cm. Preoperative and 6-month postoperative axial sections of CBCT scans were compared and 100% maxillary alveolar ridge continuity was achieved in both groups. The preoperative and postoperative occlusal photographs of both the groups were compared and showed accurate bone and well aligned maxillary alveolar ridge formation in all patients.
The present study concluded that maxillary alveolar ridge formation rate is less in cortico-cancellous iliac crest block graft compared to cancellous iliac crest particulate graft, but is equally good as cancellous bone graft.
(REF/2020/09/031605)/ CTRI/ 2020/09/028001.
本研究旨在比较和评估使用取自髂前嵴的松质骨和皮质松质骨移植物修复完全性单侧唇腭裂牙槽突裂继发缺损的上颌牙槽嵴形成和嵴连续性。
所有患者均随机分为两组进行二次牙槽骨移植。I 组（n=10）患者采用松质颗粒状骨移植物治疗，II 组（n=10）患者采用皮质松质骨块移植物治疗。使用 Planmeca Romexis Viewer 5.0 软件的锥形束 CT（CBCT）扫描评估上颌牙槽嵴骨形成。使用 CBCT 轴位扫描和临床咬合照片评估上颌牙槽嵴连续性。将术前 CBCT 扫描和咬合照片与术后 6 个月的 CBCT 扫描和咬合照片进行比较。
I 组的平均术前裂隙缺损体积为 4.2576cm，而 II 组为 4.2268cm。I 组术后 6 个月骨桥形成的平均体积为 4.055cm，而 II 组为 3.8103cm。比较术前和术后 6 个月的 CBCT 轴位扫描，两组均达到 100%的上颌牙槽嵴连续性。比较两组的术前和术后咬合照片，所有患者均显示出准确的骨和良好对齐的上颌牙槽嵴形成。
本研究表明，皮质松质髂嵴骨块移植物的上颌牙槽嵴形成率低于松质髂嵴颗粒状移植物，但与松质骨移植物同样有效。
（REF/2020/09/031605）/ CTRI/ 2020/09/028001。
