7 表面処理剤の種類が, 長期水中浸漬によるコンポジットレジンと象牙質との接着強度に及ぼす影響について (第446回大阪歯科学会例会)

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We conducted a laboratory study on the effect of various dentin conditioners and on the long-term durability of dentin bonding systems. We used the OCPC method to investigate demineralization of bovine dentin by 6 dentin conditioners (10%, 40% and 65% H_3PO_4, 10% citric acid, Imperva Primer^【○!R】 and XR-Primer^【○!R】. We also measured tensile bond strength of resin composite using 5 commercial bonding systems (Superbond D Liner^【○!R】, Clearfil Linerbond^【○!R】, Imperva Bond^【○!R】, XR-Bond^【○!R】 and Tokuso Light Bond^【○!R】). We found that demineralization of dentin with dentin conditioners is necessary for good bonding, although excessive demineralization leads to degradation of long-term bonding durability.
1996-03-25