气候变化领域集成服务门户(CCPortal): Dental wear at macro- and microscopic scale in rabbits fed diets of different abrasiveness: A pilot investigation

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DOI	10.1016/j.palaeo.2020.109886
	Dental wear at macro- and microscopic scale in rabbits fed diets of different abrasiveness: A pilot investigation
	Martin L.F.; Krause L.; Ulbricht A.; Winkler D.E.; Codron D.; Kaiser T.M.; Müller J.; Hummel J.; Clauss M.; Hatt J.-M.; Schulz-Kornas E.
发表日期	2020
ISSN	0031-0182
卷号	556
英文摘要	To differentiate the effects of internal and external abrasives on tooth wear, we performed a controlled feeding experiment in rabbits fed diets of varying phytolith content as an internal abrasive and with addition of sand as an external abrasive. 13 rabbits were each fed one of the following four pelleted diets with different abrasive characteristics (no phytoliths: lucerne L; phytoliths: grass G; more phytoliths: grass and rice hulls GR; phytoliths plus external abrasives: grass, rice hulls and sand GRS) for two weeks. At the end the feeding period, three tooth wear proxies were applied to quantify wear on the cheek teeth at macroscopic and microscopic wear scales: CT scans were obtained to quantify tooth height. Mesowear was scored adapted to this species, and 3D dental microwear texture analysis (DMTA) was performed on four antagonistic teeth. Both external and internal abrasives resulted in increased wear in all proxies compared to the phytolith and sand-free diet (L). The wear effect was more prominent on the maxillary than on the mandibular teeth. On the GRS diet, the upper third premolar had the largest decline in relative tooth height compared to others in the same tooth row. The impact of diet abrasiveness on the mesowear signal was only clearly visible for the most abrasive diet, most likely due to the limited sample size. DMTA was especially sensitive to phytolith changes in the diet, and surface roughness generally increased with increasing amounts of abrasive agents (L < G < GR < GRS) as expressed in an increase of most height and volume parameters. The fast pace of dental wear in this species led to some expected correlations between tooth height, mesowear and DMTA parameters, creating a distinct wear pattern for each diet. Animal models with high wear rates may be particularly suitable for investigations on functional interrelationships of different wear proxies. © 2020 The Author(s)
英文关键词	Grit; Lagomorph; Mesowear; Phytoliths; Texture analysis; Tooth wear
语种	英语
scopus关键词	abrasion; alfalfa; dietary intake; grass; lagomorph; phytolith; rice; straw; surface roughness; tooth; Animalia; Lagomorpha; Oryctolagus cuniculus
来源期刊	Palaeogeography, Palaeoclimatology, Palaeoecology
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/150403
作者单位	Clinic for Zoo Animals, Exotic Pets and Wildlife, Vetsuisse Faculty, University of Zurich, Winterthurerstr. 260, Zurich, 8057, Switzerland; Center of Natural History, University of Hamburg, Martin-Luther-King-Platz 3, Hamburg, 20146, Germany; Department of Human Evolution, Max Planck Institute for Evolutionary Anthropology, Deutscher Platz 6, Leipzig, 04103, Germany; Institute for Geosciences, Johannes Gutenberg University Mainz, J.-J.-Becher-Weg 21, Mainz, 55128, Germany; Department of Zoology and Entomology, University of the Free State, PO Box 339, Bloemfontein, 9300, South Africa; Ruminant Nutrition, Department of Animal Sciences, University of Goettingen, Kellnerweg 6, Goettingen, 37077, Germany; Department of Cariology, Endodontics and Periodontology, University of Leipzig, Liebigstrasse 12, Leipzig, 04103, Germany
推荐引用方式 GB/T 7714	Martin L.F.,Krause L.,Ulbricht A.,et al. Dental wear at macro- and microscopic scale in rabbits fed diets of different abrasiveness: A pilot investigation[J],2020,556.
APA	Martin L.F..,Krause L..,Ulbricht A..,Winkler D.E..,Codron D..,...&Schulz-Kornas E..(2020).Dental wear at macro- and microscopic scale in rabbits fed diets of different abrasiveness: A pilot investigation.Palaeogeography, Palaeoclimatology, Palaeoecology,556.
MLA	Martin L.F.,et al."Dental wear at macro- and microscopic scale in rabbits fed diets of different abrasiveness: A pilot investigation".Palaeogeography, Palaeoclimatology, Palaeoecology 556(2020).