Said Ahmed Wael Mohamed, Arafa Ahmed F
Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Mansoura University, Mansoura, Egypt.
Oral and Maxillofacial Resident, Oral and Maxillofacial Department, Zagazig University, Zagazig, 44519, Egypt.
BMC Oral Health. 2025 Mar 1;25(1):326. doi: 10.1186/s12903-025-05601-6.
Alveolar ridge augmentations are challenging procedures in dental implantology, especially in esthetic zone. 3D alveolar defects can be treated by guided bone regeneration (GBR), distraction osteogenesis, or bone blocks. This study introduces a new technique for 3D-alveolar ridge augmentation by using L-shape autogenous symphyseal bone block.
This study aimed to assess both horizontal and vertical alveolar bone augmentation for severe atrophied anterior maxilla and mandible, using an L- shape autogenous bone block harvested from the symphysis.
elven partially edentulous patients who needed horizontal and vertical bone augmentation in the anterior maxilla or mandible before implant placement were selected for this study. For each patient, an autogenous bone block was harvested from the symphysis, trimmed to L-shape, and used to augment the anterior maxilla or mandible horizontally and vertically. Horizontal and vertical bone gain was measured by CBCT immediate postoperative and at 6months postoperatively.
In this study, 14 L-shape bone blocks were grafted in 11 patients. The patients were 4males and 7females, with a mean age of 24.63years. Healing was uneventful for all patients with no sensory disturbance. The Mean of horizontal bone gain was 4.17 ± 0.77 mm immediate postoperative, and was 3.52 ± 0.75 after 6months. While, the mean of vertical bone gain was 6.51 ± 1.01 mm immediate postoperative, and was 4.74 ± 1.03after 6months. The mean of horizontal and vertical bone loss was 0.74 ± 0.24 mm and 1.62 ± 0.19 mm after 6 months, respectively.
Using L- shape autogenous bone block harvested from the symphysis for alveolar ridge augmentation is a safe, predictable and effective method for 3D ridge augmentation.
牙槽嵴增高术是牙种植学中具有挑战性的手术，尤其是在美学区域。三维牙槽骨缺损可通过引导骨再生（GBR）、牵张成骨或骨块进行治疗。本研究介绍了一种使用L形自体耻骨联合骨块进行三维牙槽嵴增高的新技术。
本研究旨在评估使用从耻骨联合获取的L形自体骨块对严重萎缩的上颌前部和下颌进行水平和垂直牙槽骨增高的效果。
选择11例在种植体植入前需要对上颌前部或下颌进行水平和垂直骨增高的部分牙列缺失患者进行本研究。为每位患者从耻骨联合获取自体骨块，修剪成L形，并用于对上颌前部或下颌进行水平和垂直增高。术后即刻及术后6个月通过CBCT测量水平和垂直骨增量。
本研究中，11例患者植入了14个L形骨块。患者中男性4例，女性7例，平均年龄24.63岁。所有患者愈合顺利，无感觉障碍。术后即刻水平骨增量的平均值为4.17±0.77mm，6个月后为3.52±0.75mm。而术后即刻垂直骨增量的平均值为6.51±1.01mm，6个月后为4.74±1.03mm。6个月后水平和垂直骨吸收的平均值分别为0.74±0.24mm和1.62±0.19mm。
使用从耻骨联合获取的L形自体骨块进行牙槽嵴增高是一种安全、可预测且有效的三维牙槽嵴增高方法。
