Omneity® Pellets
All-In-One Vitamin & Mineral Pellet
The blood vessel system in the periodontal ligament of the equine cheek teeth–part II: The micro-architecture and its functional implications in a constantly remodelling system.
Abstract: The micro-vasculature of the equine periodontal ligament (PDL) was investigated using corrosion casts for scanning electron microscopy. Specimens from eight healthy warm-blooded horses were examined. Specific vascular features such as large ampullae with a diameter of up to 300 microm and blind vascular casts were found in the specimens of the equine PDL. The ampullae-shaped venules occurred only in the peripheral layer, where they were formed at the confluence of several vessels. Two types of blind stumps were identified. The first was developed in all three layers, while the second was found only in the peripheral layer. Blood-flow-regulating structures were not present in the equine PDL. As vascular valves are absent, the blood can flow in all directions. This polydirectional shift exists in all vascular layers. The vascular ampullae, present exclusively in the peripheral layer, are discussed here as specific features of a mechanism that can receive masticatory forces. Apart from its mechanical role, the vasculature must constantly adapt to the spatial changes resulting from the life-long eruption of the equine cheek tooth. This is facilitated by vascular sprouting and intussusceptive vascular remodelling. The blind ending stumps of the corrosion casts are typical equivalents of vascular sprouting. The large ampullae are interpreted as the first step in an intussusceptive process.
Publication Date: 2006-12-05 PubMed ID: 17140146DOI: 10.1016/j.aanat.2006.06.007Google Scholar: Lookup The Equine Research Bank provides access to a large database of publicly available scientific literature. Inclusion in the Research Bank does not imply endorsement of study methods or findings by Mad Barn.
- Journal Article
Summary
This research summary has been generated with artificial intelligence and may contain errors and omissions. Refer to the original study to confirm details provided. Submit correction.
The research article is an investigation into the microscopic vascular structure of the Periodontal Ligament (PDL) in horses’ cheek teeth, aimed at understanding its specific features and their functional implications within this constantly remodeling system.
Research Methodology
- The study involved examining the micro-vasculature of horse’s Periodontal Ligament (PDL) using a specific method known as corrosion casting followed by scanning electron microscopy.
- The sample for the research included specimens from eight healthy warm-blooded horses.
Findings from the Study
- Research revealed specific features of the equine PDL such as large ampullae with a diameter of up to 300 microm and blind vascular casts.
- The ampullae-shaped venules were found only in the peripheral layer and were formed at the confluence of several vessels.
- Two types of blind stumps were identified. The first was found in all three layers, while the second was exclusive to the peripheral layer.
- The study also found that there were no blood-flow-regulating structures in the equine PDL and no vascular valves. Therefore, blood could flow in all directions.
- The polydirectional shift was observed to extend to all the vascular layers.
Functional Implication of PDL Micro-architecture
- The study suggests that the vascular ampullae, only found in the peripheral layer, receive masticatory forces, indicating a functional feature of the PDL.
- Apart from its mechanical role, the vascular structure is adaptive to spatial changes. This adaptability is crucial due to the life-long eruption of horse’s cheek teeth.
- Vascular changes occur through processes such as vascular sprouting and intussusceptive vascular remodelling. The blind ending stumps of the corrosion casts indicate vascular sprouting.
- The large ampullae are seen as the first step in an intussusceptive process, a form of vascular remodeling.
Cite This Article
APA
Masset A, Staszyk C, Gasse H.
(2006).
The blood vessel system in the periodontal ligament of the equine cheek teeth–part II: The micro-architecture and its functional implications in a constantly remodelling system.
Ann Anat, 188(6), 535-539.
https://doi.org/10.1016/j.aanat.2006.06.007 Publication
Researcher Affiliations
- Institute of Anatomy, University of Veterinary Medicine Hannover, Bischofsholer Damm 15, D-30173 Hannover, Germany.
MeSH Terms
- Animals
- Blood Vessels / anatomy & histology
- Blood Vessels / physiology
- Blood Vessels / ultrastructure
- Cheek / blood supply
- Horses / anatomy & histology
- Microscopy, Electron, Scanning
- Models, Anatomic
- Periodontal Ligament / blood supply
- Regeneration
- Tooth / blood supply
Citations
This article has been cited 3 times.- Menon N, Kishen A. Nociceptor-Macrophage Interactions in Apical Periodontitis: How Biomolecules Link Inflammation with Pain. Biomolecules 2023 Jul 31;13(8).
- Pollaris E, Broeckx BJG, Rajasekharan S, Cauwels R, Vlaminck L. Fracture Resistance of Equine Cheek Teeth With and Without Occlusal Fissures: A Standardized ex vivo Model. Front Vet Sci 2021;8:699940.
- Bergomi M, Cugnoni J, Wiskott HW, Schneider P, Stampanoni M, Botsis J, Belser UC. Three-dimensional morphometry of strained bovine periodontal ligament using synchrotron radiation-based tomography. J Anat 2010 Aug;217(2):126-34.
Use Nutrition Calculator
Check if your horse's diet meets their nutrition requirements with our easy-to-use tool Check your horse's diet with our easy-to-use tool
Talk to a Nutritionist
Discuss your horse's feeding plan with our experts over a free phone consultation Discuss your horse's diet over a phone consultation
Submit Diet Evaluation
Get a customized feeding plan for your horse formulated by our equine nutritionists Get a custom feeding plan formulated by our nutritionists
