Enamel microarchitecture of a tribosphenic molar

• DOI: 10.1002/jmor.10867
• Publication Date: 2010-07-07T20:31:32Z
• Authors: František Špoutil; Vojtěch Vlček; Ivan Horáček
• Keywords: 0106 biological sciences; 0301 basic medicine; 03 medical and health sciences; X-Ray Diffraction; Microscopy, Electron, Scanning; Humans; Dental Enamel; Molar; 01 natural sciences

The tribosphenic molar is a dental apomorphy of mammals and the type from which all derived types originated. Its enamel coat expected to be ancestral: thin, evenly distributed layer radial prismatic enamel. In bat Myotis myotis, we reinvestigated 3D architecture using serial sectioning combined with scanning electron microscopy analyses, biometrics prisms crystallites, X-ray diffraction. We found distinct heterotopies in thickness (thick on convex sides crests, thin concave ones), angularity prisms, distribution particular (prismatic, interprismatic, aprismatic) demonstrated structural relations these cusp crest organization molar. diffraction that crystallites composing are actually aggregates much smaller primary crystallites. differences among degree crystallite aggregation variation microstrain (depending upon duration mechanical context mineralization) represent factors not fully understood as yet may contribute complexity microarchitecture significant way.