PASTY TWO-PART DENTAL CURABLE COMPOSITION

To provide a pasty two-part dental curable composition that has an operation time within a reasonable range, is excellent in the strength of adhesion to noble metal and dentin, hardly deteriorates in the strength of adhesion to dentin during long-term storage, and exhibits low solidification risk of...

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Bibliographic Details
Main Authors KAWANA MARIKO, OKADA YOSHIHIDE, TAKEI MITSURU
Format Patent
LanguageEnglish
Japanese
Published 20.04.2023
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Summary:To provide a pasty two-part dental curable composition that has an operation time within a reasonable range, is excellent in the strength of adhesion to noble metal and dentin, hardly deteriorates in the strength of adhesion to dentin during long-term storage, and exhibits low solidification risk of the paste, and low variation of the curing time.SOLUTION: A pasty two-part dental curable composition contains: a first agent containing a polymerizable monomer (A) containing an acidic group, a polymerizable monomer (B) having no acidic group, an organic peroxide (C), a filler (D), and a ligand (G) comprising a nitrogen atom; and a second agent containing the polymerizable monomer (B) having no acidic group, the filler (D), and an ascorbic acid compound (F), and containing substantially no thiourea compound; where at least one of the first and second agents contains a transition metal compound (E).SELECTED DRAWING: None 【課題】操作時間が適度な範囲内にあり、貴金属及び象牙質に対する接着強さに優れるとともに、長期に亘る保管中において象牙質に対する接着強さの低下が小さいことに加え、ペーストの固化リスクが低く、かつ硬化時間の変動が小さい、ペースト状の二剤型歯科用硬化性組成物を提供する。【解決手段】酸性基含有重合性単量体(A)、酸性基を有しない重合性単量体(B)、有機過酸化物(C)、フィラー(D)及び窒素原子を含む配位子(G)を含有する第一剤と、酸性基を有しない重合性単量体(B)、フィラー(D)、及びアスコルビン酸化合物(F)を含有し、かつチオ尿素化合物を実質的に含有しない第二剤と、を備え、第一剤又は第二剤の少なくとも一方が遷移金属化合物(E)を含有する、ペースト状の二剤型歯科用硬化性組成物。【選択図】なし
Bibliography:Application Number: JP20210166527