首页    期刊浏览 2024年09月19日 星期四
登录注册

文章基本信息

  • 标题:Biological Bases of Dentin Hybridization
  • 本地全文:下载
  • 作者:Brajdić, Davor ; Krznarić, Ozren Mika ; Azinović, Zoran
  • 期刊名称:Collegium Antropologicum
  • 印刷版ISSN:0350-6134
  • 出版年度:2008
  • 卷号:32
  • 期号:3
  • 页码:901-906
  • 出版社:Hrvatsko antropološko društvo
  • 摘要:The aims of this study were threefold: (1) to characterize and quantify the number, diameter and surface area of exposed dentinal tubules on the cross section of the human coronal dentin; (2) to determine if any such differences in these properties arise in relation to the distance from the dentinoenamel junction; and (3) to evaluate whether such differences can influence dentin hybridization. To accomplish these aims, scanning electron microscopy comparative observation was carried out on 60 prepared human premolars, which were divided into three groups of 20 samples each. The three sample groups were cut as follows: (1) in the central fissure region, one millimeter from the enamel-dentine junction; (2) halfway between the enamel-dentine junction and the pulp; and (3) one millimeter from the roof of the pulp chamber. Using one-way analysis of variance (one-way ANOVA) and a regression linear model, the data enumerated below were obtained. First, the mean number of the tubule openings was 19600/mm2 on the first level, 32400/mm2 on the second and 42300/mm2 on the third. The mean tubule diameter on the first level was 0.67 mm, 1.52 mm on the second and 2.58 mm on the third. Finally, exposed tubules on the first level occupied 2.79% of of total dentinal surface area, 23.90% on the second, and 87.78% on the third level. Therefore, significant statistical differences (p specimens for all three properties were observed, as well as positive correlation between the dentin depth and each of these properties. This indicates that the dentin structural variety, which ultimately determines adhesion to dentine, involves a complex interaction between biological material (dentin) and the particular adhesion system applied.
  • 关键词:dentin; dentinal tubules; dentin adhesives; dentin hybridization; hybrid layer; scanning electron microsopy
国家哲学社会科学文献中心版权所有