2000
DOI: 10.1034/j.1600-0765.2000.035004201.x
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Developmental changes of the vasculature in the periodontal ligament of rat molars: a scanning electron microscopic study of microcorrosion casts

Abstract: Vascularization of the periodontal ligament was examined in developing upper first molars of rats from 5 to 30 d after birth with light and scanning electron microscopy. Formation of the vascular network in the periodontal ligament (PDL) started with the beginning of root formation. The PDL vessels derived from the basal region of the tooth germ ran parallel to the long axis of the root and connected with the vascular network of the enamel organ at the cervical end. The boundary of these 2 networks was initial… Show more

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Cited by 12 publications
(12 citation statements)
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“…The heterodimers appear to be functionally different from the homodimers of each receptor, and whether heterodimers exist in the endothelium of normal pulp blood vessels needs to be clarified. The roles of VEGFR‐3 and its two ligands – VEGF‐C and VEGF‐D – in the normal pulp also remain to be investigated, as well as the reason for the high expression (13.6‐fold) of the receptor compared with the PDL, another well‐perfused and well‐vascularized tissue.…”
Section: Discussionmentioning
confidence: 99%
“…The heterodimers appear to be functionally different from the homodimers of each receptor, and whether heterodimers exist in the endothelium of normal pulp blood vessels needs to be clarified. The roles of VEGFR‐3 and its two ligands – VEGF‐C and VEGF‐D – in the normal pulp also remain to be investigated, as well as the reason for the high expression (13.6‐fold) of the receptor compared with the PDL, another well‐perfused and well‐vascularized tissue.…”
Section: Discussionmentioning
confidence: 99%
“…The role of elaunin fibers has not been clear. A basket-like formation of blood vessels was reported in the apical region of the rat molar ligament (Selliseth and Selvig 1994;Tsukada et al 2000), and it was suggested that the function of such a vascular network was to cushion against occlusal forces. If this is the case, the role of elaunin fibers present close to blood vessels may be for the restoration of the vascular system and recuperation of blood vessels from deformations.…”
Section: Discussionmentioning
confidence: 99%
“…Gemäß den (älteren) Angaben von Boyer und Neptun (1962), Kindlova und Matena (1962), Carranza et al (1966) sowie Gaengler und Merte (1983) wurde zunächst die Anordnung von zwei getrennten Blutgefäßgebieten in Erwägung gezogen. Doch haben neuere Untersuchungen an verschiedenen Spezies -Maus (Wong und Sims 1987), Hund (Roush et al 1989) und Ratte (Tsukada et al 2000) -gezeigt, dass strukturelle Verbindungen zwischen den Vaskularisationssystemen der Gingiva und des Ligamentum periodontale bestehen. Dies gilt ebenso -wie hier dargestellt -für das Periodontium des Pferdes.…”
Section: Transverse Section Of a First Molar Tooth's Periodontium On unclassified
“…Im Vergleich jener Befunde mit den hier am Zahnhalteapparat des Pferdes dargestellten Befunden werden grundsätzliche Ähnlichkeiten deutlich erkennbar: a) multipler Zufluss zum periodontalen Blutgefäß-system aus apikalen, seitlichen und gingivalen Regionen; b) Aufteilung in ein alveolarknochennahes -"peripheres" -Blutgefäßsystem und in ein zementnahes -"internes" -Blutgefäß-system. Das alveolarknochennahe -"periphere" -Netzwerk im Ligamentum periodontale beim Pferd gleicht hinsichtlich Organisation und Angioarchitektur dem bei Labornagern (Wong und Sims 1987;Aharinejad et al 1990;Selliseth und Selvig 1994;Tsukada et al 2000) und Schafen (Spence 1978 (Aharinejad et al 1990;Tsukada et al2000). Diesen funktionell passiven Eigenschaften steht eine aktive Beteiligung bei der Erzeugung von hydrostatischen Drukkkräften gegenüber, die zur Gewährleistung eines stetigen Zahnausschubs dienen (Berkovitz 1975;Moxham et al 1985;Berkovitz 1990;Kirkham et al 1993 …”
Section: Transverse Section Of a First Molar Tooth's Periodontium On unclassified
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