研究的目的是调查元素的分布(Ca,Mg,Fe,P,Zn,Na,K,Cu,Cr,Mo,Co,Se)使用电感耦合等离子体发射光谱法(ICP-OES)进行分析,并使用离子选择电极在欧洲海狸(Castor纤维)牙齿的釉质中以电位测定氟化物(F-)。用于研究的材料是从博物馆收藏的动物(居住在波兰西北部的动物)的头骨从下颚收集的牙釉质。我们的研究结果表明F-作为可以影响海狸牙釉质硬度和强度的元素的重要作用。对海狸牙齿的功能至关重要(即,剪切和压碎木材)是在中央切牙唇面(切牙釉质的橙色层)中存在诸如Fe之类的元素,门牙釉质内侧的Mg,和Co和F-在磨牙的搪瓷中。由于这些元素的高含量,牙釉质经久耐用,牙齿适应这种哺乳动物的营养和生态特征。我们对海狸牙釉质中元素分布的研究对于理解牙釉质矿化过程也可能很重要,确定元素如何改变材料的属性,探索环境与海狸生活史的关系。
The aim of the study was to investigate the distribution of elements (Ca, Mg, Fe, P, Zn, Na, K, Cu, Cr, Mo, Co, Se) analyzed using inductively coupled plasma optical emission spectrometry (ICP-OES) and fluorides (F-) determined potentiometrically using an ion-selective electrode in the enamel of European
beaver (Castor fiber) teeth. Material for the study was tooth enamel collected from lower jaws from the skulls of the animals borrowed from museum collections (animals inhabited north-western Poland). The results of our study indicate the important role of F- as an element that can affect the hardness and strength of
beaver tooth enamel. Critical to the function of
beaver teeth (i.e., shearing and crushing wood) is the presence of elements such as Fe in the central incisor labial aspect (orange layer of the incisor enamel), Mg in the inner side of the incisor enamel, and Co and F- in the enamel of the molars. Thanks to the high content of these elements, the enamel is durable and the teeth are adapted to the nutritional and ecological characteristics of this mammalian species. Our study on the distribution of elements in the enamel of
beaver teeth may also be important for the understanding of the enamel mineralization processes, determining how elements change the properties of the materials, and exploring the relationship between the environment and life history of the
beaver.