Effect of elapsed time after air abrasion on bond strength of luting agent to CAD/CAM resin blocks

被引：1

作者：

Asano, Rana ^{[1
]}

Otake, Shiho ^{[1
]}

Nozaki, Kosuke ^{[2
]}

Yoshida, Keiichi ^{[1
]}

Miura, Hiroyuki ^{[1
]}

机构：

[1] Tokyo Med & Dent Univ, Grad Sch Med & Dent Sci, Dept Fixed Prosthodont, Div Oral Hlth Sci, Tokyo, Japan

[2] Tokyo Med & Dent Univ, Inst Biomat & Bioengn, Dept Mat Biofunct, Tokyo, Japan

来源：

JOURNAL OF ORAL SCIENCE | 2019年 / 61卷 / 03期

关键词：

CAD/CAM composite resin block; air abrasion; tensile bond strength; elapsed time; bonding; SELF-ADHESIVE; SURFACE CHARACTERISTICS; MECHANICAL-PROPERTIES; DENTAL COMPOSITES; WATER SORPTION; CURING MODE; CEMENTS;

D O I：

10.2334/josnusd.18-0305

中图分类号：

R78 [口腔科学];

学科分类号：

1003 ;

摘要：

This experiment assessed the effect of elapsed time between air abrasion and bonding on tensile bond strength (TBS) between computer-aided design/computer-aided manufacturing (CAD/CAM) composite resin blocks and luting agents. Specimens were divided into eight groups classified by block type (Estelite Block or HC Block), elapsed time after air abrasion (none [D0] or 1 week [D7]), luting agent type (Estecem [ESC] or Rely X Ultimate [RLU]), and polymerization condition (chemical cured [CC] or light cured [LC]). In the CC+ESC group, TBS was significantly higher at D0 than at D7. There was also a significant difference between blocks in all groups except the LC+ESC group. Scanning electron microscopy and atomic force microscopy were used to observe the surfaces of blocks after air abrasion and indicated that blocks absorbed water in air with elapsed time, which affected TBS between CAD/CAM composite resin blocks and luting agents.

引用

页码：459 / 467

页数：9

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