SciELO - Scientific Electronic Library Online

 
vol.13 issue2Alterations in tail length and its association with fertility characters in CF1 mice selected for weightHaematological parameters of the White-eared Opossum, Didelphis albiventris (Lund, 1841), wild populations of central Argentina author indexsubject indexarticles search
Home Pagealphabetic serial listing  

InVet

On-line version ISSN 1668-3498

Abstract

TORIGGIA, P.G. et al. Characterization of dog dental cementum by scanning electron microscopy. InVet [online]. 2011, vol.13, n.2, pp. 87-96. ISSN 1668-3498.

The aim of this study was to characterize the dental cementum in the dog using the scanning electron microscope (SEM). The buccal surface of 38 dental roots was observed and photographed with the SEM in their coronal and apical thirds. A morphological classification of the surface was performed and also, the diameter of 20 Sharpey fibers was measured in each picture establishing the percentage occupied by them in 600 µm². In the coronal third, acellular cementum was found with the Sharpey fibers closely packed, projecting perpendicular to the surface, occupying almost the whole of it. The diameter of the fibers was of 5.31 ± 0.98 µm. In the apical third, cellular cementum was found, with a density of Sharpey fibers less tham 55%, the remainder being intrinsic fibers and cell lacunae. The fiber diameter was 5.47 ± 1.31 µm. The diameters of Sharpey fibers of the apical third were significantly higher (p=0.0000) than those in the coronal one. We conclude that the dog cementum surface is not uniform, being differences between coronary and apical thirds and within the same third of the tooth.

Keywords : Dental cementum; Ultrastructure; SEM; Dog.

        · abstract in Spanish     · text in Spanish     · Spanish ( pdf )

 

Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License