Pergolizzi S, Anastasi G, Santoro G, Trimarchi F
Department of Biomorphology, University of Messina, Italy.
Ital J Anat Embryol. 1995 Oct-Dec;100(4):203-9.
The authors have carrie out a study on the shape of apatite enamel crystals by means of field emission S.E.M.; for this purpose the lower incisor enamel of albino rats and the enameloid of fossil remains of Odontaspis from the Cretaceus and Miocene ages were used. The analysis of the available literature showed two different models: according to the first model enamel crystals were elongated hexagonal rods; according to the second, the one of Warshawsky, the enamel crystals were flat ribbons, with a rectangular cross-section. In accordance to the synthetic apatite morphology and to the shape of the unit cell, the authors show that the single enamel crystal is a rod with an equilateral hexagon base.
作者通过场发射扫描电子显微镜对磷灰石釉质晶体的形状进行了研究；为此，使用了白化大鼠的下切牙釉质以及来自白垩纪和中新世时期的齿形鲨化石残骸的类釉质。对现有文献的分析显示了两种不同的模型：根据第一种模型，釉质晶体是细长的六边形棒；根据第二种模型，即瓦尔沙夫斯基的模型，釉质晶体是扁平的带状物，具有矩形横截面。根据合成磷灰石的形态和晶胞形状，作者表明单个釉质晶体是一个具有等边六边形底部的棒。
