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Adhesion between Epoxy Resin-Based Fiber Post and Dental Core Resin Improved by Non-Thermal Atmospheric Pressure Plasma

 Hyoung-Sik Kim  ;  Song-Yi Yang  ;  Eun Ha Choi  ;  Kwang-Mahn Kim  ;  Jae-Sung Kwon 
 APPLIED SCIENCES-BASEL, Vol.10(7) : e2535, 2020-04 
Journal Title
Issue Date
fiber post ; dental core resin ; non-thermal atmospheric pressure plasma ; adhesion ; shear bond strength ; push-out shear bond strength
The purpose of the study was to evaluate the adhesion between dental core resin and epoxy resin-based fiber post after treatment with non-thermal atmospheric pressure plasma (NTAPP) and compare with conventional methods of epoxy resin-based fiber post treatments. Contact angle was measured on the surface of epoxy resin before and after NTAPP treatment and X-ray photoelectron spectroscopy was used to analyze the surface chemistry. Finally, two shear bond strength tests were carried out; shear bond strength between core resin and epoxy resin for comparison between NTAPP treated and untreated sample, and push-out shear bond strength between core resin and NTAPP treated commercially available epoxy resin-based fiber post for comparison between NTAPP treated samples with conventionally treated samples. Contact angle on the surface of epoxy resin generally decreased with increasing NTAPP treatment time with presence of surface chemical changes. Also, there was significantly higher shear bond strength and push-out shear bond strength between epoxy resin and core resin for NTAPP treated epoxy resin, even to the conventionally treated epoxy resin-based fiber post with hydrofluoric acid or silane. In conclusion, new technology of NTAPP has potential for application on the epoxy resin-based fiber post to improve endodontic restoration success rate.
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2. College of Dentistry (치과대학) > Dept. of Dental Biomaterials and Bioengineering (치과생체재료공학교실) > 1. Journal Papers
Yonsei Authors
Kwon, Jae-Sung(권재성) ORCID logo https://orcid.org/0000-0001-9803-7730
Kim, Kwang Mahn(김광만) ORCID logo https://orcid.org/0000-0002-5235-0294
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