马的牙齿磨损与牙釉质和牙本质显微硬度的关系

Dental wear in horses in relation to the microhardness of enamel and dentine.

作者信息

Muylle S, Simoens P, Verbeeck R, Ysebaert M T, Lauwers H

机构信息

Department of Morphology, Faculty of Veterinary Medicine, UG, Merelbeke, Belgium.

出版信息

Vet Rec. 1999 May 15;144(20):558-61. doi: 10.1136/vr.144.20.558.

DOI:10.1136/vr.144.20.558

PMID:10371014

Abstract

The microhardness of enamel, primary dentine and secondary dentine was determined in the incisor teeth of 39 horses of three different breeds, trotter horses, Belgian draft horses and Arab horses. Using a microhardness tester fitted with a Knoop diamond indenter, the overall Knoop Hardness Number was determined for each tissue, and the influence of breed and age on the hardness were evaluated. Enamel and secondary dentine were significantly harder in Arab horses than in trotters and Belgian draft horses, but there were no significant differences between draft horses and trotter horses in the hardness of their enamel and dentine.

摘要

在39匹三种不同品种马（快步马、比利时挽马和阿拉伯马）的切牙中测定了釉质、原发性牙本质和继发性牙本质的显微硬度。使用配备努氏金刚石压头的显微硬度测试仪，测定每个组织的总体努氏硬度值，并评估品种和年龄对硬度的影响。阿拉伯马的釉质和继发性牙本质比快步马和比利时挽马明显更硬，但挽马和快步马在釉质和牙本质硬度方面没有显著差异。