根管拡大清掃後の根管内壁面の走査電顕的研究(第 4 報)

概要

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With use of extracted human maxillary anterior teeth with the root canals untreated, enlarging and preparation of the root canals were done with K-files after the root canals were filled with a root canal irrigation solution (10%NaOCl). One milliliter each of 10% NaOCl and 15% EDTA was then filled in separate syringes with needle for infiltration anesthesia and used for irrigation for two minutes, and the lnner wall surfaces were observed with a scanning electron microscope. The results were as follows : 1. Irrigation with 10% NaOCl solution was very effective in dissolving debris of pulp tissue in the coronal and middle areas of the root canals. However it was not effective in the apical area. 2. Irrigation with 15% EDTA was effective in dissolving dentin mud in the coronal and middle areas of the root canals. However it was not effective in the apical area. 3. In order to increase cleaning effect in root canals, abundant use of EDTA, NaOCl, and H_2O_2 appears to be necessary.
九州歯科学会の論文
1987-02-25