대한소아치과학회지 (Journal of the korean academy of Pediatric Dentistry)

  • 제44권1호
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  • Pages.72-81
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  • 2017
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  • 1226-8496(pISSN)
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  • 2288-3819(eISSN)
대한소아치과학회 (Korean Academy of Pediatric Dentistry)
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인공타액오염이 유치 상아질에서 3종 상아질 접착제의 결합 강도에 미치는 영향

Effects of Artificial Saliva Contamination on the Bond Strength of Three Dentin Adhesives to Dentin of Primary Teeth

  • 배영은 (부산대학교 치의학전문대학원 소아치과학교실, 중개치의학연구소, 부산대학교 치과병원 치의학연구소) ;
  • 김신 (부산대학교 치의학전문대학원 소아치과학교실, 중개치의학연구소, 부산대학교 치과병원 치의학연구소) ;
  • 정태성 (부산대학교 치의학전문대학원 소아치과학교실, 중개치의학연구소, 부산대학교 치과병원 치의학연구소) ;
  • 김지연 (부산대학교 치의학전문대학원 소아치과학교실, 중개치의학연구소, 부산대학교 치과병원 치의학연구소)
  • Bae, Youngeun (Department of Pediatric Dentistry & Institute of Translational Dental Sciences, School of Dentistry, Pusan National University, Dental Research Institute, Pusan National University Dental Hospital) ;
  • Kim, Shin (Department of Pediatric Dentistry & Institute of Translational Dental Sciences, School of Dentistry, Pusan National University, Dental Research Institute, Pusan National University Dental Hospital) ;
  • Jeong, Teasung (Department of Pediatric Dentistry & Institute of Translational Dental Sciences, School of Dentistry, Pusan National University, Dental Research Institute, Pusan National University Dental Hospital) ;
  • Kim, Jiyeon (Department of Pediatric Dentistry & Institute of Translational Dental Sciences, School of Dentistry, Pusan National University, Dental Research Institute, Pusan National University Dental Hospital)
  • 투고 : 2016.06.03
  • 심사 : 2016.07.19
  • 발행 : 2017.02.28
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초록

본 연구의 목적은 유치 상아질의 복합레진 술식에서 각 단계별로 치면에 인공타액이 오염되었을 때와 이것을 제거하는 방법이 한 단계 자가부식 접착제와 두 단계 산 부식 접착제의 결합강도에 미치는 영향을 비교 분석하는 것이다. 연구 목적을 달성하기 위해, 건전한 유구치 42개를 선정하여 세 종류의 상아질 접착제인 Scotchbond Universal Adhesive(SBU), All-Bond Universal(ABU)과 Prime & Bond NT(PNT)에 따라 3개의 군으로 분류하였다. 이를 다시 각 접착제에서 7개의 하위 그룹으로 나누었다. 대조군인 1군을 제외한 나머지 군은 인공타액으로 오염시킨 군으로 다음과 같이 분류하였다: 2, 3군 - 접착제 도포 전; 4, 5군 - 접착제 중합 전; 6, 7군 - 접착제 중합 후. 인공타액은 수세, 건조(2, 4, 6군)와 건조(3, 5, 7군)로 제거하였다. 처치된 치면에 복합레진(Filtek, Z-350)으로 수복하고 시편을 제작한 후 미세인장 결합강도(Microtensile bond strength, MTBS)를 측정하였다. One-way ANOVA와 Tukey HSD test를 이용해서 통계분석을 실시하였다(p < 0.05). 대조군에서 MTBS의 평균값은 PNT가 ABU와 SBU에 비해 높게 나타났다(p < 0.001). 세 가지 접착제의 각 오염단계에서 수세와 건조를 시행했을 때(2, 4, 6군)가 건조만 시행했을 때(3, 5, 7군)보다 높은 결합강도를 나타내었다. 그리고 접착제 중합 전 단계에서 인공타액의 오염이 발생했을 때(4, 5군)는 대조군에 비해 낮은 MTBS를 보였다(p < 0.001). 전반적으로 두 단계 산 부식 접착제가 한 단계 자가부식 접착제에 비해 높은 MTBS를 보였다. 접착제를 중합하기 전 단계에서 인공타액에 오염되었을 경우에는 접착 강도가 현저히 감소하였고, 수세와 건조 과정으로 접착강도를 회복할 수 없었다.

The aim of this study was to evaluate the effectiveness of artificial saliva contamination and decontamination procedures at different stages of a bonding procedure on the microtensile bond strength (MTBS) of two one-step self-etch adhesives and a two-step total-etch adhesive to dentin of primary teeth. Forty-two extracted sound primary molars were randomly divided into three groups depending on three adhesives, Scotchbond Universal Adhesive (SBU), All-Bond Universal (ABU) and Prime & Bond NT (PNT). For each adhesive, the teeth were allocated into seven groups. Except for control group, group 1, the groups were contaminated with artificial saliva at three different stages: the groups 2 and 3 - before adhesive application; the groups 4 and 5 - before adhesive polymerization; the groups 6 and 7 - after adhesive polymerization. Decontaminating procedures were rinsing, air-drying (group 2, 4, 6) and air-drying (group 3, 5, 7). The specimens were restored with composite resin (Filtek, Z350) and microtensile bond strength was measured. The data was analyzed with one-way ANOVA and Tukey HSD test (p < 0.05). In the control group, using PNT resulted in significantly higher bond strength than when ABU and SBU were used (p < 0.001). For three adhesives, the groups 2, 4 and 6 had greater bond strength than the groups 3, 5 and 7. Also, when the artificial saliva was contaminated before adhesive polymerization (group 4, 5), it showed a significantly lower bond strength. Generally the two-step total-etch adhesive generated a higher bond strength than the one-step self-etch adhesive. Artificial saliva contamination before adhesive polymerization led to a drastic decrease in bond strength, and rinsing with water followed by air-drying could not recover the bond strength.

키워드

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피인용 문헌

  1. Shear Bonding Strength of Three Cements Luted on Pediatric Zirconia Crowns and Dentin of Primary Teeth vol.45, pp.3, 2018, https://doi.org/10.5933/JKAPD.2018.45.3.314