Effect of UV irradiation on the shear bond strength of titanium with segmented polyurethane through γ-mercapto propyl trimethoxysilane

Harumi Sakamoto, Yohei Hirohashi, Hisashi Doi, Yusuke Tsutsumi, Yoshiaki Suzuki, Kazuhiko Noda, Takao Hanawa

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The objective of this study was to investigate the effect of UV irradiation on shear bond strength between a titanium (Ti) and a segmented polyurethane (SPU) composite through γ-mercapto propyl trimethoxysilane (γ-MPS). To this end, the shear bond strength of Ti/SPU interface of Ti-SPU composite under varying conditions of ultraviolet ray (UV) irradiation was evaluated by a shear bond test. The glass transition temperatures of SPU with and without UV irradiation were also determined using differential scanning calorimetry. It was found that the shear bond strength of Ti/SPU interface increased with UV irradiation. However, excessive UV irradiation decreased the shear bond strength of Ti/SPU interface. Glass transition temperature was found to increase during 40-60 seconds of UV irradiation. In terms of durability after immersion in water at 37°C for 30 days, shear bond strength was found to improve with UV irradiation. In conclusion, UV irradiation to a Ti-SPU composite was clearly one of the means to improve the shear bond strength of Ti/SPU interface.

Original languageEnglish
Pages (from-to)124-132
Number of pages9
JournalDental Materials Journal
Volume27
Issue number1
DOIs
Publication statusPublished - 2008

Fingerprint

Polyurethanes
Titanium
Irradiation
Composite materials
Ultraviolet Rays
trimethoxysilane
Differential scanning calorimetry
Durability
Water

Keywords

  • Shear bond strength
  • Silane coupling agent
  • UV irradiation

ASJC Scopus subject areas

  • Dentistry(all)
  • Biomaterials

Cite this

Effect of UV irradiation on the shear bond strength of titanium with segmented polyurethane through γ-mercapto propyl trimethoxysilane. / Sakamoto, Harumi; Hirohashi, Yohei; Doi, Hisashi; Tsutsumi, Yusuke; Suzuki, Yoshiaki; Noda, Kazuhiko; Hanawa, Takao.

In: Dental Materials Journal, Vol. 27, No. 1, 2008, p. 124-132.

Research output: Contribution to journalArticle

Sakamoto, Harumi ; Hirohashi, Yohei ; Doi, Hisashi ; Tsutsumi, Yusuke ; Suzuki, Yoshiaki ; Noda, Kazuhiko ; Hanawa, Takao. / Effect of UV irradiation on the shear bond strength of titanium with segmented polyurethane through γ-mercapto propyl trimethoxysilane. In: Dental Materials Journal. 2008 ; Vol. 27, No. 1. pp. 124-132.
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