Abstract
The purpose of the present study was to investigate a new method to evaluate micro topography and micro morphology of hard tissue of canine teeth using an atomic force microscope (AFM). For this aim, three extracted human canine teeth were applied. The unpolished surfaces were analyzed with AFM images with 15 µm × 5 µm area and their information obtained by power spectral density (PSD) method and fast Fourier transform algorithm. It was observed that PSD analyses extract suitable information about surface morphological variations so that by moving from enamel to cementum, the fractal dimension and surface complexity were increased.
Highlights
Surface morphology at nanoscale is a key factor in techno‐ logical applications as well as fundamental science [1,2,3]
Atomic force microscope (AFM) images were considered as the best source of information about surface topography obtained through a very small probe which forms the profile of the surface morphology quanti‐ tatively [4]
The present work focused on the surface morphology of hard tissue of canine tooth including enamel, dentin, and cementum
Summary
Surface morphology at nanoscale is a key factor in techno‐ logical applications as well as fundamental science [1,2,3]. Among various types of surfaces whose morphology can be estimated, human tooth attracts a lot of attention nowa‐ days [8]. Dentin, and cementum are three hard tissues which form human tooth. Dentin is formed by odontoblasts where 30% and 50% of its compositions are collagen and HAP minerals [12]. Cementum, whose composition is similar to bone, is mainly composed of HAP (65 wt%), along with organic matrix including collagen and noncollagenous proteins and water [13]. These tissues with their complex structure are highly organized.
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