Effect of Intracanal Medicaments on Push-out Bond Strength of Calcium Silicate-based Materials

Hyuntae Jeong; Sunmi Yang; Kim Seon Mi; Namki Choi; Jaehwan Kim

doi:10.5933/JKAPD.2018.45.4.455

The purpose of this study was to evaluate the effect of the intracanal medicaments on the push-out bond strength of the calcium silicate-based materials. Forty extracted single-root human mandibular premolars were sectioned below cementoenamel junction. Standardized root canal dimension was obtained with a parallel post drill. The specimens were randomly divided into a control group (no medicament), and experimental groups received medicaments with either CH (calcium hydroxide), DAP (double antibiotic paste; a mixture of ciprofloxacin and metronidazole), or TAP (triple antibiotic paste; a mixture of minocycline, ciprofloxacin and metronidazole). Following removal of medicaments with irrigation, roots were cut into sections with 1-mm-thickness. Thereafter, calcium silicate-based materials are applied to the specimens : (i) ProRoot MTA® and (ii) Biodentine®. A pushout bond strength was measured and each specimen was examined to evaluate failure mode. Intracanal medication using CH significantly increased the bond strength to the root dentin. But there are no significant differences on the bond strength of ProRoot MTA® or Biodentine® among TAP, DAP and control groups. The dislodgement resistance of Biodentine® from root dentin was significantly higher than that of ProRoot MTA® regardless of the type of intracanal medicaments.

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* 2021년 이후 발행 논문의 참고문헌은 현재 구축 중입니다.

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