Andreasi Bassi M, Lopez M A, Confalone L, Lauritano D, Candotto V
Private Practitioner in Rome, Rome, Italy.
Department of Medicine and Surgery, University of Milano "Bicocca", Monza, Italy.
Oral Implantol (Rome). 2017 Jan 21;10(4):468-476. doi: 10.11138/orl/2017.10.4.468. eCollection 2017 Oct-Dec.
The crestal sinus lifting by means of hydraulic technique associated with a nano-cristalline hydroxyapatite in an aqueous medium is investigated.
A specific purpose-made instrument is used, consisting of a syringe with a micrometrically controlled piston connected to a dispenser used to inject, in a calibrated and precise manner, noted volumes of graft material into the sub-schneiderian space. Adopting such a technique the Authors performed 7 future site developments, on 7 patients (2 males; 5 females; mean age 49.29±8.08 years), using a nanocrystalline hydroxyapatite. In the second stage, performed at 5.71±1.52 months, 7 implants were placed, after harvesting bone biopsies from the regenerated sites. The samples underwent histological and histomorphometric analysis.
The average percentage of vital bone was of 33.27±5.98%, while the bone marrow and graft material were 60.84±5.93% and 5.87±3.05%, respectively.
The results confirm the effectiveness of this method in restoring bone volume in the sub-antral region. Furthermore nano-cristalline hydroxyapatite is a proper material for sinus floor augmentation.
研究通过水力学技术联合纳米晶羟基磷灰石在水介质中进行嵴顶窦提升术。
使用一种特制的仪器，该仪器由一个带有微米控制活塞的注射器组成，该活塞连接到一个分配器，用于以校准和精确的方式将一定体积的移植材料注入施耐德氏下间隙。采用这种技术，作者对7例患者（2例男性；5例女性；平均年龄49.29±8.08岁）进行了7次未来种植位点开发，使用纳米晶羟基磷灰石。在第二阶段，在5.71±1.52个月时进行，从再生位点采集骨活检后植入7枚种植体。对样本进行组织学和组织形态计量学分析。
活骨的平均百分比为33.27±5.98%，而骨髓和移植材料分别为60.84±5.93%和5.87±3.05%。
结果证实了该方法在恢复窦下区域骨量方面的有效性。此外，纳米晶羟基磷灰石是一种适合用于窦底增高的材料。
