The Journal of Korean Academy of Prosthodontics (대한치과보철학회지)

The Korean Academy of Prosthodonitics (대한치과보철학회)
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Nonthermal plasma on the shear bond strength of relining resin to thermoplastic denture base resin

열가소성 의치상 레진과 첨상용 레진의 접착 강도에 저온플라즈마가 미치는 효과

  • Manaloto-Ceballos, Liezl (Institute for Clinical Dental Research, Korea University Guro Hospital) ;
  • Labriaga, Wilmart (Institute for Clinical Dental Research, Korea University Guro Hospital) ;
  • Song, So-Yeon (Institute for Clinical Dental Research, Korea University Guro Hospital) ;
  • Park, Jin-Hong (Institute for Clinical Dental Research, Korea University Guro Hospital) ;
  • Lee, Jeong-Yol (Institute for Clinical Dental Research, Korea University Guro Hospital) ;
  • Shin, Sang-Wan (Institute for Clinical Dental Research, Korea University Guro Hospital)
  • ;
  • ;
  • 송소연 (고려대학교 구로병원 임상치의학연구소) ;
  • 박진홍 (고려대학교 구로병원 임상치의학연구소) ;
  • 이정열 (고려대학교 구로병원 임상치의학연구소) ;
  • 신상완 (고려대학교 구로병원 임상치의학연구소)
  • Received : 2018.02.28
  • Accepted : 2018.05.17
  • Published : 2018.07.31
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Abstract

Purpose: This study evaluated the effect of nonthermal plasma treatment on the bond strength of autopolymerizing relining resin to the injection molded thermoplastic denture base resins (TDBRs) with different surface treatments. Materials and methods: Acrylic Resin (Acrytone), Polyester (Estheshot-Bright), Polyamide (Valplast) and Polypropylene (Weldenz) were subjected to various surface treatments: No treatment, Nonthermal plasma, Sandblasting, Sandblasting and nonthermal plasma. Specimens were bonded using an autopolymerizing relining resin. Shear bond strength was tested using universal testing machine with crosshead speed of 1 mm/min. Statistical analysis by two-way analysis of variance with Tukey's test post hoc was used. Results: Acrytone showed significantly higher shear bond strength value among other TDBR group while Weldenz had the lowest. The sandblasting and nonthermal plasma condition had significantly higher shear bond strength value in all of the resin groups (P < .05). Conclusion: The use of nonthermal plasma treatment showed limited effect on the shear bond strength between TDBRs and relining resin, and combination of nonthermal plasma and sandblasting improved the shear bond strength between TDBR and reline material.

목적: 이 연구는 저온 플라즈마가 자가중합형 재이장용 레진과 주입형 열가소성 의치상 레진의 결합 강도에 미치는 영향을 다른 표면 처리 방법에서 평가하기 위함이다. 재료 및 방법: 네 가지 열가소성 의치상이 이 연구에서 사용되었다: Acrylic Resin (Acrytone), Polyester (Estheshot-Bright), Polyamide (Valplast), Polypropylene (Weldenz)에 다양한 표면처리를 시행하였다: 대조군, 저온플라즈마, Sandblasting, Sandblasting와 저온플라즈마. 표면 처리 후 모든 시편은 Tokuyama Rebase II를 이용하여 원형의 테플론 관에 접착되었다. 전단강도는 Universal testing machine을 통해 crosshead speed 1 mm/min으로 측정되었다. 통계 분석 방법으로는 이원분산분석을, 사후 검정 방법으로는 Tukey's test가 사용되었다. 결과: Acrytone이 다른 열가소성 의치상 레진 그룹에 비하여 통계적으로 유의한 수준에서 더 높은 전단강도를 보인 반면 Weldenz는 가장 낮은 값을 나타냈다. Sandblast와 저온플라즈마를 순차적으로 시행한 조건에서 모든 레진 그룹 중 통계적으로 유의한 수준에서 가장 높은 전단강도 값을 나타냈다. 결론: 열경화성 의치상 레진과 재이장용 레진 사이의 전단강도에 저온플라즈마는 제한된 효과를 나타내었으며, sandblasting 처리와 함께 처리되었을 때 두 재료간 전단강도는 향상되었다.

Keywords

References

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