人工的変色歯を用いた新漂白法
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概要
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Recently a demand for aesthetic dental treatment, especially for bleaching teeth, has greatly increased among dental patients. Therefore, teeth whitening has been performed widely, whether for vital or non・vital teeth. However, teeth whitening can cause damage of the paradentium or teeth root and weaken the enamel. Accordingly, in the current research this bleaching was carried out with different bleaching agents. For new agents, (A) bibasic calcium phosphate + carboxy methyl cellulose sodium salt (B) sodium lauryl sulfate + carboxy methyl cellulose sodium salt (C) sodium lauroyl sarcosinate + carboxy methyl cellulose sodium salt (D) bibasic calcium phosphate + sodium lauryl sulfate + sodium lauroyl sarcosinate + carboxy methyl cellulose sodium salt were used in place of the usual ones. H_2O_2 or urea peroxide. As part ofthe procedures in the experiment the agent, tannin acid sheep erythrocyte, was used for the discoloration of the teeth. Then the above-mentioned four agents were poured into the pulp chamber from the lingual side and sealed with a temporary stopping, and then the teeth were kept in an incubator for one week. After that the lightness and color differences were measured by the color measuring instrument (Murakami CMS-35FS) and the hardness of the dentin was also measured by Brinell hardness measuring instrument. The results show that the method using the four agents is about the same in effectiveness of whitening teeth, with a difference that can be recognized with the naked eye. The dentin hardness is lowered to some extent however, the above-mentioned four agents are clearly demonstrated to be better bleaching agents. Moreover, D group was the best among the four groups.
- 奥羽大学の論文
- 2003-03-31