Phase separation of two-step total-etch adhesives under over-wet condition

국문 초록 (Abstract)

본 연구의 목적은 과수분 상태에서 두단계 산부식 접착제들의 상분리를 관찰하는 것이었으며 광학현미경을 사용하여상변화를 관찰하였고 접착제의 젖음성을 평가하기 위해 각 접착제의 접촉각과 휘발성분의 양을 측정하였다. 두단계 산부식 접착제인 OptiBond Solo Plus(OBS, Kerr Corp., Orange, CA, USA), Single Bond Plus(SB, 3M ESPE corp.,St. Paul, MN, USA), Excite(EX, Ivoclar Vivadent, Schaan, Liechtenstein) 10 μl에 증류수를 1 μl에서 5 μl까지 1 μl 씩 단계적으로 첨가한 후 상분리를 관찰하였다. 관찰결과 OBS는 2 μl, SB는 5 μl, EX는 3 μl에서 상분리가 시작되었다. 또한 SB가 OBS와 EX보다 유의하게 더 작은 접촉각을 나타내었으며 (p<0.05), 휘발성분의 양에서는 유의한 차이가 없었다(p>0.05). 따라서 세 가지 접착제들은 젖음성의 차이로 인하여 서로 다른 상분리 현상을 보이는바 습윤접착시 과수분 상태에 대한 주의가 필요하다.

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