| 摘要 |
PROBLEM TO BE SOLVED: To provide a glass ionomer-based sealer powder for root canal filling, capable for being easily removed from the root canal if the root canal retreatment is needed, and having seal property and bio-compatibility of the dental glass ionomer cement powder used as a conventional sealer for root canal filling. SOLUTION: The glass ionomer-based sealer powder for root canal filling comprises fluoroaminosilicate glass powder compounded in polymer unable to react with polycarboxylic acid such as bees wax, polyisoprene, polyisoprene copolymer, polystyrene, natural gutta-percha, carnauba wax, castor wax, shellac, dammar gum, copal gum, and/or an inorganic filler unable to react with polycarboxylic acid such as diatomite, talc or pearlite. The compounded amount is 2 to 70% by weight.
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