Nanoindentation and Atomic Force Microscopy Derived Mechanical and Microgeometrical Properties of Tooth Root Cementum

In the present research, nanoindentation, atomic-force microscopy and optical were used to study mechanical microgeometrical parameters of tooth tissues. A nanoindentation test unit equipped with Berkovich indenter was determine values reduced Young’s modulus indentation hardness both atomic force using a diamond probe on silicon cantilever human root cementum. Three areas cementum studied: cervical region near dentine–enamel junction, second third root, apex root. The interpretation results carried out Oliver–Pharr method. It established, that properties increase from central part then decrease again towards On contrary, characteristics practically do not demonstrate any change in same direction. roughness direction cellular dentine observed. Additionally, area compared crown found nanoindentation. investigation dentine–cementum junction high resolution revealed interspaced collagen fiber bridges epithelial rests Malassez, whose sizes studied. topographic features vicinity lacunae cementocytes also established.