摘要
目的:比较不同牙体预备量预备牙体后,1周2,周牙髓组织学结构的变化及差异。方法:选择Beagle犬的恒牙作为研究对象,用牙体预备前;预备牙体组织1.0 mm,1.5 mm,2.0 mm后即时;戴临时冠1周,2周,制备组织切片,观察牙髓组织结构的变化及差异。结果:牙体预备量为1.0 mm,牙髓组织正常。牙体预备量为1.5 mm即时牙髓组织切片镜下可见少量血管扩张,无炎性细胞浸润,1周时,牙髓正常;2周时,牙髓组织正常。牙体预备量为2.0 mm,牙髓组织切片镜下可见大量血管扩张,个别炎性细胞浸润,1周时,有少量血管扩张。2周时牙髓组织基本正常。结论:在同等条件下备牙量不同,可引起牙髓组织的不同变化,随着备牙量的增加牙髓组织的应急性反应愈加明显。
Objective:To compare the pulpal response after different volume of tooth preparation and different time in vivo study.Method:To divide 30 teeth into 10 teams according to different volum of tooth preparationl and after different time.Histological sections were made to observe the pupal response.Result:When 1.0 mm or 1.5 mm was preparedt,he pulp were normal in every team.When 2.0 mm was preparedt,here was some inflammation cells in pulp immediately.After 1 weekt,he pulp covered the temporary crowns had some inflammation cells in pulp.After 2 weekst,he pulp with temporary crowns showed normal.Conclusion:The more volum prepared,it had more affection on pulp.
出处
《临床口腔医学杂志》
2010年第11期652-654,共3页
Journal of Clinical Stomatology
基金
云南省教育厅科研基金资助(5Z0328C)
关键词
牙体预备
组织反应
牙髓组织
tooth preparation
histological reaction
pulp tissue