Modification of the dentin surface by using carbon nanotubes

被引：24

作者：

Akasaka, Tsukasa ^{[1
]}

Nakata, Keiko ^{[1
]}

Uo, Motohiro ^{[1
]}

Watari, Fumio ^{[1
]}

机构：

[1] Hokkaido Univ, Grad Sch Dent Med, Dept Biomed Dent Mat & Engn, Kita Ku, Sapporo, Hokkaido 0608586, Japan

来源：

BIO-MEDICAL MATERIALS AND ENGINEERING | 2009年 / 19卷 / 2-3期

关键词：

Carbon nanotubes; coating; tooth slice; dentin; enamel; collagen; tensile bond strength; ANTIBACTERIAL PROPERTIES;

D O I：

10.3233/BME-2009-0578

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

Recent studies have shown that carbon nanotubes (CNTs) can be used as biomedical materials because of their unique properties. CNTs effect nucleation of hydroxyapatite, because of which considerable interest has been generated regarding the use of CNTs in dentistry. However, there are only a few reports on the use of CNTs as dental materials. In this study, we investigated the changes induced in the surfaces of tooth slices by the application of a coating of CNTs by observing CNT-coated tooth slices both macroscopically as well as under a scanning electron microscope. Further, we investigated the effect of CNT coating on the tensile bond strength of dentin adhesives. CNTs adhered easily to the tooth surfaces when tooth slices were suspended in a CNT-dispersed solution. Interestingly, it was observed that CNTs selectively adhered to the surfaces of dentin and cementum, possibly by adhering to their exposed collagen fibers. In addition, the CNT coating did not affect the tensile bond strength of dentin adhesives. These results indicate that coating of the teeth with CNTs can be a possible application of CNTs as dental materials.

引用

页码：179 / 185

页数：7

共 19 条

[1] INVIVO REMINERALIZATION USING A SUSTAINED TOPICAL FLUORIDE DELIVERY SYSTEM [J].