Chifor Radu, Badea Mindra Eugenia, Hedesiu Mihaela, Serbanescu Andrea, Badea Alexandru Florin
University of Medicine and Pharmacy Iuliu Hatieganu Cluj-Napoca, Department of Preventive Dentistry, 15 Victor Babes street, 400012 Cluj-Napoca, Romania.
Med Ultrason. 2010 Jun;12(2):127-32.
The main objective of the study was the realisation of an experimental model and evaluation to establish whether the high frequency ultrasound method can supply credible information concerning the structure of the periodontal tissues.
We used a 20 MHz, 2D transducer of Dermascan C (CORTEX TECHNOLOGY l) device for examining 20 teeth on 4 healthy pig mandibles. The examination was made in the lateral area of alveolar bones at the lingual surface.
On the images obtained through this type of ultrasonography we identified the cortical bone, tooth crown, tooth root and fixed mucosa. On the images obtained with Dermascan C ver. 3.0 software, very accurate measurements of periodontal space width (mean= 0.45 mm, Std. Dev=0.078) and thickness of cortical bone (mean= 0.31 mm, Std. Dev=0.134) and fixed mucosa (mean= 0.91 mm, Std. Dev=0.176) were made.
Considering the non-invasive nature of the ultrasound method for patients and for medical staff during examination, but also considering the advantages generated by the possibility of making exact measurements of different areas, this method could become a reliable alternative for X-ray examinations in patients with periodontal disease. If a miniaturized transducer would be available, it could be used for ultrasound periodontal assessment in humans.
本研究的主要目的是建立一个实验模型并进行评估，以确定高频超声方法是否能够提供有关牙周组织结构的可靠信息。
我们使用Dermascan C（CORTEX TECHNOLOGY l）设备的20 MHz二维换能器，对4头健康猪下颌骨上的20颗牙齿进行检查。检查在牙槽骨舌侧表面的外侧区域进行。
在通过这种超声检查获得的图像上，我们识别出了皮质骨、牙冠、牙根和附着黏膜。使用Dermascan C 3.0软件获得的图像上，对牙周间隙宽度（平均值 = 0.45 mm，标准差 = 0.078）、皮质骨厚度（平均值 = 0.31 mm，标准差 = 0.134）和附着黏膜厚度（平均值 = 0.91 mm，标准差 = 0.176）进行了非常精确的测量。
考虑到超声检查方法对患者和医护人员而言具有非侵入性，同时也考虑到能够对不同区域进行精确测量所带来的优势，该方法可能成为牙周疾病患者X线检查的可靠替代方法。如果能有小型化的换能器，它可用于人类的超声牙周评估。
