Vascular pathways of human deciduous dental pulp

Georgiev, Zlatko and Kovacevska, Ivona and Dimova, Cena (2012) Vascular pathways of human deciduous dental pulp. Acta Morphologica Publication of Macedonian assotiation of anatomists and morphologist, 9 ((2)). ISSN 1409-9837

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Abstract

Abstract The transition from deciduous to permanent teeth is a unique and dynamic process in which the development and eruption of permanent teeth is coordinated with the resorption of deciduous teeth. The vascularisation in pulp tissue of human deciduous teeth has not been as well studied as that within human permanent teeth. Such information is useful to those who diagnose and treat children’s teeth. In order to examine the reparatory pulp ability of deciduous teeth, it was our aim to determine vascular structures in contrast to the histological appearance of noncarious human primary teeth with root completion and physiological resorption, because the dental pulp is an active component in the life of the tooth. Histological examinations of blood vessels in deciduous dental pulp were performed on a light microscope and on a Transmission Electron Microscope. When the process of physiological root resorption in deciduous teeth is initiated, blood vessels in pulp tissue show some disturbances. Another area in which information is lacking involves changes in the blood vessels of the deciduous teeth during the period of root resoption. Endothelial cells of arterioles, venules and capillaries are cuboidal, with large pinocytotic vesicles, progressive reduction of luminal capacity, and reduction of the wall of the pulp blood vessels. Key words: deciduous teeth, dental pulp, root resorption, blood vessels, ultrastructure Introduction The transition from deciduous to permanent teeth is a unique and dynamic process in which the development and eruption of permanent teeth is coordinated with the resorption of deciduous teeth. Primary teeth contrary to permanent ones, have a relatively short lifetime and functional duration, and are subordinated to an early physiological resorption of the roots. In the past human primary teeth has received little attention compared to similar research on permanent teeth, because they are smaller and short lived, and due to the belief that the pulps are similar. Now a days, deciduous dental pulp is the origin of stem cells and is progenitor for tissues with therapeutic expectations in much disease in future1, 4. Dental pulp is a unique tissue, responsible for the tooth vitality, and when this tissue is damaged by disease; it reacts in an attempt to defend by production of protective dentine. From its non-specific and specific defensive mechanisms, depends the survival of the tissue in pathological conditions. This tissue passes three phases: phase of root formation, phase of functional duration and phase of physiological resorption of the root. The vascularisation in pulp tissue of human deciduous teeth has not been as well studied as that within human permanent teeth. Such information is useful to those who diagnose and treat children’s teeth. Another area in which information is lacking involves changes

Item Type: Article
Subjects: Medical and Health Sciences > Basic medicine
Medical and Health Sciences > Clinical medicine
Medical and Health Sciences > Other medical sciences
Divisions: Faculty of Medical Science
Depositing User: Ivona Kovacevska
Date Deposited: 24 Apr 2013 08:15
Last Modified: 30 Sep 2013 10:40
URI: http://eprints.ugd.edu.mk/id/eprint/5001

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