A SCANNING ELECTRON-MICROSCOPIC STUDY OF THE ODONTOBLAST PROCESS IN HUMAN CORONAL DENTIN
A SCANNING ELECTRON-MICROSCOPIC STUDY OF THE ODONTOBLAST PROCESS IN HUMAN CORONAL DENTIN
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DOI：
10.1016/0003-9969(83)90104-8
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发表时间：
1983-01-01
影响因子：
3
通讯作者：
SMITH, DC
中科院分区：
文献类型：
--
作者：
MANIATOPOULOS, C;SMITH, DC
It is generally accepted that the odontoblast process occupies the dentinal tubules only in the inner part of the dentine, extending .apprx. 0.7 mm from the pulp in both animals and man. Twenty-three premolars, molars and 3rd molars from subjects aged 11-24 yr, all caries-free or only slightly decayed, were processed immediately after extraction by 1 of 4 methods. (I) Teeth were split in liquid nitrogen and then fixed, dehydrated in ascending ethanol and dried by critical point drying (CPD). (II) Teeth were fractured by use of a mallet and a chisel and then prepared as in Method I. (III) The root was cut off using a diamond disk or a mallet and a chisel and the crown was then fixed, fractured in liquid nitrogen, dehydrated and CPD. (IV) As Method III but following fixation the teeth were freeze-dried. All specimens were examined in the scanning electron microscope. In specimens prepared by Methods II, III or IV the odontoblast process was limited to the inner third of crown dentine. However in all the specimens prepared by Method I the odontoblast process extended to the dentine-enamel junction.
