摘要
The morphologic feature of radicular dentin in sensitive and naturally desensitive areas was observed with scanning electron microscopy(SEM). Eight specimens were taken from six-patients with periodontal diseases. It was established that the orifices of dentinal tubules in hypersensitive areas were much more than those in naturally desensitive areas. The dimension of the orifices in hypersensitive areas was much larger than that in naturally desensitive areas. The results suggest that there is relationship between dentin morphology and dentin hypersensitivity. In this article, a new technique of dentin biopsy with hollow drill was reported also.
The morphologic feature of radicular dentin in sensitive and naturally desensitive areas was observed with scanning electron microscopy(SEM). Eight specimens were taken from six-patients with periodontal diseases. It was established that the orifices of dentinal tubules in hypersensitive areas were much more than those in naturally desensitive areas. The dimension of the orifices in hypersensitive areas was much larger than that in naturally desensitive areas. The results suggest that there is relationship between dentin morphology and dentin hypersensitivity. In this article, a new technique of dentin biopsy with hollow drill was reported also.
