Löst C, Irion K M, Nüssle W
Department of Conservative Dentistry and Periodontology, Johannes Gutenberg University, Mainz, FRG.
J Clin Periodontol. 1989 Sep;16(8):534-8. doi: 10.1111/j.1600-051x.1989.tb02332.x.
In vitro ultrasonic scans of the oral/facial periodontium of pigs were obtained using a special experimental design and with the help of a newly developed ultrasonic measuring and analysis system. These two-dimensional images distinguish themselves from the one-dimensional RF-echograms and A-scans in that they enable the viewer to have a quick overview of the relationship between different interfaces in a scanned sector. A selection of ultrasonic B-scans proves that the scanned tissues such as gingiva, bone, periodontal ligament, tooth surface and even structures of the inner part of the tooth may be clearly imaged and distinctly differentiated. Furthermore, we demonstrate with manipulations of the pigs periodontium, that the interpretation of the pictures is correct. The primary goal of our investigation was to assess whether the ultrasonic procedure is suitable for the determination of the height of the facial/oral bone crest. On the basis of this study, we may confirm this supposition for the imaging in ultrasonic B-scans.
使用特殊的实验设计并借助新开发的超声测量与分析系统，对猪的口腔/面部牙周组织进行了体外超声扫描。这些二维图像与一维射频回波图和A扫描不同，它们能让观察者快速了解扫描区域内不同界面之间的关系。一系列超声B扫描结果表明，诸如牙龈、骨骼、牙周韧带、牙齿表面甚至牙齿内部结构等扫描组织都能清晰成像并明显区分。此外，通过对猪牙周组织的操作，我们证明了这些图像的解读是正确的。我们研究的主要目的是评估超声检查程序是否适用于确定面部/口腔牙槽嵴的高度。基于这项研究，我们可以确认超声B扫描成像的这一假设。
