Garlini Giuliano, Redemagni Marco, Donini Matteo, Maiorana Carlo
J Oral Maxillofac Surg. 2010 May;68(5):1152-7. doi: 10.1016/j.joms.2009.05.440. Epub 2010 Feb 13.
The aim of this retrospective study was to determine the clinical and radiologic results, over an 11-year period, of resorbable hydroxyapatite used as a bone substitute in maxillary sinus elevation.
Between 1996 and 2007, we treated 26 patients with maxillary sinus elevation (27 sinuses) using resorbable hydroxyapatite and simultaneous insertion of 47 titanium implants. Patients were recruited, screened, and accepted or rejected sequentially based on specific inclusion/exclusion criteria. Ten months later, 2-stage surgery and prosthetic rehabilitation were performed.
During the 11-year follow-up period (mean, 6 years), all the implants appeared clinically and radiologically integrated. The cumulative survival rate was 100%. During the observation period, the resorption of the graft apically to the implant was 1.8 mm on average.
The posterior area of the maxilla often represents a challenging clinical situation because of either the lack of alveolar bone or the structural characteristics of the trabeculae in that specific area. The high survival rate of the implants and the stability of the mineralization of the graft confirmed that resorbable hydroxyapatite was a suitable material for sinus grafting.
本回顾性研究的目的是确定在11年期间，可吸收羟基磷灰石作为上颌窦提升术中骨替代物的临床和放射学结果。
1996年至2007年期间，我们使用可吸收羟基磷灰石并同时植入47枚钛种植体，对26例上颌窦提升患者（27个鼻窦）进行了治疗。根据特定的纳入/排除标准，依次招募、筛选患者，并决定是否接受治疗。10个月后，进行二期手术和修复修复。
在11年的随访期（平均6年）内，所有种植体在临床和放射学上均显示融合。累积生存率为100%。在观察期内，种植体根尖方向的植骨平均吸收1.8mm。
由于上颌骨后部区域缺乏牙槽骨或该特定区域小梁的结构特征，常常代表着具有挑战性的临床情况。种植体的高生存率和植骨矿化的稳定性证实，可吸收羟基磷灰石是一种适合用于鼻窦植骨的材料。
