Effects of residual resin-based sealers after post space preparation on bond strength

• Project/Area Number: 24792022
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Conservative dentistry
• Research Institution: Osaka University
• Principal Investigator: YABUNE Toshiaki 大阪大学, 歯学研究科(研究院), 助教 (90423144)
• Project Period (FY): 2012-04-01 – 2014-03-31
• Project Status: Completed (Fiscal Year 2013)
• Budget Amount: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000); Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000); Fiscal Year 2012: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
• Keywords: 歯学 / 支台築造 / 接着 / レジン系シーラー

Research Abstract

The purpose of this study was to assess the residual resin-based sealers in root canals after post space preparation by confocal laser scanning microscopy. The way to observe the residual resin-based sealers using two fluorescent dyes has established. Four different resin-based sealers were examined by using this method, and all sealers were remained in dentinal tubules in the root canals. The residual resin-based sealers in the root canals could not be entirely removed after using ultrasonic tips preparation.