総説
象牙質知覚過敏の本態について
1988 年 9 巻 1 号 p. 10-16
詳細
1988 年 9 巻 1 号 p. 10-16
It is very interesting why the dental pulpal pain is induced by the chemical and physical stimulation. However, although this problem has been studing since ever, the sensory mechanism is not yet resolved completely.
This time, about the outline of sensory mechanism of hypersensitive dentine, I described. First of all, the causes of hypersensitive dentine, secondly the classification and lastly the sensory mechanism including our original research and the other's was presented.
In the result, a space of approximately 20nm was observed between nerve fibers and odontblastic processes, but no special structures such as gap junctions or synapses were found between them. However, from their morphological relation, the presence of a mechanical stimulant mechanism was hypothesized. There were also findings suggesting the presence of a stimulus transmission mechanism due to some sort of substance transfer between the nerve and the process.
