Angelis Nicola De, Pesce Paolo, Yumang Catherine, Baldi Domenico, Menini Maria
Department of Surgical Sciences and Integrated Diagnostics, Unit of Implant and Prosthodontics, University of Genoa, 16126 Genova, Italy.
Dental Department, University Technology MARA, Sungai Buloh 47000, Malaysia.
Dent J (Basel). 2025 Jul 2;13(7):299. doi: 10.3390/dj13070299.
In modern dentistry, alveolar socket preservation after tooth extraction plays a critical role in maintaining the alveolar ridge for future dental implants. This retrospective clinical study evaluated bone-level changes 15 years after immediate implant placement, coupled with alveolar ridge preservation. Fifty non-smoking patients aged 25 to 75 (30 males and 20 females) who underwent single-implant rehabilitation in both anterior and posterior regions of the upper and lower jaws were included. The study examined bone levels and implant survival over time, using standardized intraoral radiographs at 1, 5, and 15 years post-loading. Implants were placed immediately after atraumatic extraction, and the residual gap was grafted with bovine hydroxyapatite and covered with a collagen membrane. The primary outcome was bone-level stability, while secondary outcomes included implant failure. No temporary crowns or removable dentures were provided during healing. Radiographs were digitized for detailed analysis. The results for 50 patients with immediate implant placement showed that bone-resorption levels were significantly higher in the upper jaw than in the lower jaw. Posterior implants exhibited greater bone loss than anterior implants, particularly at 1 year and 15 years, while no implant failures occurred.
在现代牙科中，拔牙后牙槽窝保存对于维持牙槽嵴以用于未来的牙种植体起着关键作用。这项回顾性临床研究评估了即刻种植并结合牙槽嵴保存15年后的骨水平变化。纳入了50名年龄在25至75岁之间的非吸烟患者（30名男性和20名女性），他们在上颌和下颌的前部和后部区域接受了单颗种植修复。该研究使用加载后1年、5年和15年的标准化口腔内X光片，随时间检查骨水平和种植体存活率。在无创拔牙后立即植入种植体，剩余间隙用牛羟基磷灰石移植并覆盖胶原膜。主要结果是骨水平稳定性，次要结果包括种植体失败。愈合期间未提供临时冠或可摘义齿。X光片数字化以进行详细分析。50例即刻种植患者的结果显示，上颌骨吸收水平显著高于下颌骨。后部种植体比前部种植体表现出更大的骨丢失，尤其是在1年和15年时，且未发生种植体失败。
