レジン系接着剤と象牙質との接着強さに及ぼす仮付けセメントの影響

Influence of temporary cements on bond strength between resin-based luting agents and dentin.

抄録

目的:

レジン系接着剤と象牙質との接着強さに及ぼすテンポラリーセメントの影響を検討する．

PURPOSE: To examine the influence of temporary cements on the strength of the bond formed between resin-based luting agents and dentin.

方法:

METHODS: An acrylic resin plate was luted to bovine dentin using one of three temporary cements; HY-Bond Temporary Cement Hard (HYB), Freegenol Temporary Pack (FTP), or Neodyne T (NDT). The control group (CON) was not treated with cement. Following the removal of the temporary cement, each dentin substrate was bonded to a silane-treated ceramic material (IPS Empress) with one of four luting agents; Super-Bond C&B (SCB), Panavia F (PAF), Nexus II (NEX), or Fuji Luting S (FLS). The specimens were immersed in water for 24 hours and the strength of the bond to shearing forces was determined.

結果:

接着強さ（単位：MPa）は，以下の通りであった（括弧内は統計的カテゴリー）．SCBシステムではHYB（25.7, a），CON（23.5, a, b），FTP（19.8, b, c），NDT（16.8, c, d），PAFシステムではFTP（13.8, d, e），CON（12.9, d, e），NDT（10.6, e, f），HYB（7.8, f, g, h），FTP（9.2, e, f, g)、CON(7.9, f, g, h)、HYB(7.7, f, g, h)、NDT(7.1, f, g, h)のNEX剤；FTP(5.2, g, h, i)、CON(3.7, h, i)、NDT(3.0, h, i)、HYB(1.6, i)のFLS剤であった(P<0.05)。

RESULTS: The bond strengths (in MPa), with statistical categories shown in parentheses were: HYB (25.7, a), CON (23.5, a, b), FTP (19.8, b, c), and NDT (16.8, c, d) for the SCB system; FTP (13.8, d, e), CON (12.9, d, e), NDT (10.6, e, f), and HYB (7.8, f, g, h) for the PAF system; FTP (9.2, e, f, g), CON (7.9, f, g, h), HYB (7.7, f, g, h), NDT (7.1, f, g, h) for the NEX agent; and FTP (5.2, g, h, i), CON (3.7, h, i), NDT (3.0, h, i), HYB (1.6, i) for the FLS agent, (P< 0.05).