在人的脸上,嘴唇是最重要的解剖元素之一,形态和功能。形态学上,它们对美学有重大影响,异常的嘴唇形态会导致社会心理学问题。功能上,它们在呼吸中起着至关重要的作用,衔接,喂养,和吞咽。研制了一种能在临床试验中准确简便地测量口周组织弹性模量的仪器,并对其测量灵敏度进行了评价。该装置基本上是由力传感器和位移传感器组成的单轴压缩装置。位移传感器的工作原理是由于软材料的变形而增强恢复力。使用该设备,测量具有各种柔软度的聚氨酯弹性体的力和位移,是人体组织的模型材料。所开发的仪器测得的应力与杨氏模量成比例增加,并通过压缩设备在杨氏模量的整个区域测量,表示该关系可用于校准。使用开发的仪器进行的临床试验显示,上唇的杨氏模量,左脸颊,右脸颊分别为45、4.0和9.9kPa,分别。在本文中,从正畸学的角度讨论了该设备的优点和对所获得数据的解释。
On the human face, the lips are one of the most important anatomical elements, both morphologically and functionally. Morphologically, they have a significant impact on aesthetics, and abnormal lip morphology causes sociopsychological problems. Functionally, they play a crucial role in breathing, articulation, feeding, and swallowing. An apparatus that can accurately and easily measure the elastic modulus of perioral tissues in clinical tests was developed, and its measurement sensitivity was evaluated. The apparatus is basically a uniaxial compression apparatus consisting of a force sensor and a displacement sensor. The displacement sensor works by enhancing the restoring force due to the deformation of soft materials. Using the apparatus, the force and the displacement were measured for polyurethane elastomers with various levels of softness, which are a model material of human tissues. The stress measured by the developed apparatus increased in proportion to Young\'s modulus, and was measured by the compression apparatus at the whole region of Young\'s modulus, indicating that the relation can be used for calibration. Clinical tests using the developed apparatus revealed that Young\'s moduli for upper lip, left cheek, and right cheek were evaluated to be 45, 4.0, and 9.9 kPa, respectively. In this paper, the advantages of this apparatus and the interpretation of the data obtained are discussed from the perspective of orthodontics.