Analysis of arsenic in gray and white mineral trioxide aggregates by using atomic absorption spectrometry.
スポンサーリンク
概要
- 論文の詳細を見る
INTRODUCTION: The aim of the present study was to investigate whether the concentration of arsenic (As) released from gray or white mineral trioxide aggregates (MTAs) met the requirement of the International Standards Organization (ISO) for dental cements. METHODS: Sample preparations were carried out according to the ISO methods. After centrifugation of dissolved samples, As (III) concentration in the final supernatant was analyzed by a high-performance atomic absorption spectrophotometer. RESULTS: As (III) concentration from both MTAs was much less than the required value (2 ppm) for dental cements regulated by the ISO. An experiment simulating pulp capping by using MTA revealed that As concentration was also below the standard value of the ISO. The As concentration in white MTA was lower than the value (10 ppb) recommended for tap water and environmental standards. CONCLUSIONS: The present in vitro studies demonstrated that there is no threat to patient health in using commercially available brands of MTA for endodontic practices.
論文 | ランダム
- 特別論稿1 行政養成型ボランティアの活動意義と課題--健康づくり運動推進の観点から (特集 健康な地域づくりにおけるヘルスボランティア--その養成と活動支援をめぐって)
- The Influence of Non-economic Factors on Japanese Lone-mother Employment Patterns in Hokkaido: Economic and Moral Rationality
- A Note on the Classification of Technical Progress in the More than Two Factors Case
- 向山アルドール反応 : 高選択的炭素-炭素結合生成反応
- 第5回ITS世界会議'98ソウルに参加して