TWO-PASTE TYPE DENTAL HARDENABLE COMPOSITION

• Main Authors: KAWANA MARIKO, NISHIGAKI NAOKI, ABE MOMOE
• Format: Patent
• Language: English; Japanese
• Published: 20.06.2019
• Subjects: HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES

To provide two-paste type dental hardenable compositions having clinically acceptable adhesive durability without primers against a dental adherend comprising a dental glass-ceramic restoration (in particular a lithium disilicate-containing glass-ceramic restoration).SOLUTION: Provided is a two-paste type dental hardenable composition constituted from: a first agent comprising (a) a polymerizable monomer having an acidic group, (b) a polymerizable monomer having no acidic group, (c) a polymerization initiator, and (d) a filler; and a second agent comprising (e) at least one basic filler selected from the group consisting of (b) the polymerizable monomer having no acidic group, basic glass fillers and alumina, (f) a polymerization accelerator, and (g) a silane coupling agent represented by the general formula [I], the first agent comprising a silanol condensation catalyst (i) represented by the general formula [VII], and/or the second agent comprising a crosslinking agent (h) represented by the general formula [V] or [VI].SELECTED DRAWING: None 【課題】歯科用ガラスセラミックス修復物（特に二ケイ酸リチウム含有ガラスセラミックス修復物）を含む歯科用被着体に対して、プライマーなしで臨床上許容できる接着耐久性を有する２ペースト型歯科用硬化性組成物を提供すること。【解決手段】酸性基を有する重合性単量体（ａ）、酸性基を有しない重合性単量体（ｂ）、重合開始剤（ｃ）及びフィラー（ｄ）を含む第１剤と、酸性基を有しない重合性単量体（ｂ）、塩基性ガラスフィラー及びアルミナからなる群より選ばれる少なくとも１種の塩基性フィラー（ｅ）、重合促進剤（ｆ）及び一般式〔Ｉ〕で表されるシランカップリング剤（ｇ）を含む第２剤とから構成され、第１剤が一般式〔VII〕で表されるシラノール縮合触媒（ｉ）を含む、及び／又は第２剤が一般式〔Ｖ〕又は〔VI〕で表される架橋剤（ｈ）を含む、２ペースト型歯科用硬化性組成物。【選択図】なし