エポキシ樹脂を基材とした根管充填剤に関する実験的研究(第 2 報)

概要

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A study was conducted on the possible effect of AH-26, a root-canal filling material having an epoxy-resin basis toward the connective tissues of rats, with reference to Yoshida Paste, N_2, and Homosfuran Triozinc Paste as control materials. 1. Immediately after the mixing, a definite amount of all four filling materials was respectively introduced into subcutaneous connective tissues of the back of adult rats, and the animals were sacrificed on the 1st, 3rd, 7th, 14th and 21th postoperative days. The materials introduced and their surrounding tissues were exciced from the animals and prepared for the microscopic examination. 2. The study revealed that throughout the experimental period, Yoshida Paste produced a slight inflammatory response only in earliest period of experiment, which could be readily brought to normal by the formation of newer granular tissues. Such favorable effect was also observed in AH-26, although in lesser degree. Homosfuran Triozinc Paste was worse than Yoshida Paste and AH-26, and N_2 produced so severe inflammation in the tissues that it could no longer be repaired. Consequently we consider that Yoshida Paste and AH-26 are more compatible with living connective tissue than Homosfuran Triozinc Paste and N_2.
九州歯科学会の論文
1966-03-31