구강회복응용과학지 (Journal of Dental Rehabilitation and Applied Science)

  • 제30권2호
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  • Pages.145-151
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  • 2014
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  • 2384-4353(pISSN)
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  • 2384-4272(eISSN)
대한턱관절교합학회 (Korean Academy of Stomatognathic Function and Occlusion)
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다양한 방식으로 적용한 이장재가 2급와동 복합레진 수복의 미세누출에 미치는 영향

Effect of lining application techniques on microleakage in class II composite restorations

  • 황병문 (이화여자대학교 의학전문대학원 치과학교실) ;
  • 김주형 (서울대학교 치의학대학원 치과보철학교실) ;
  • 박지만 (이화여자대학교 의학전문대학원 치과학교실) ;
  • ;
  • 박은진 (이화여자대학교 의학전문대학원 치과학교실)
  • Hwang, Byung-Moon (Department of Dentistry, School of Medicine, Ewha Womans University) ;
  • Kim, Joo-Hyung (Department of Prosthodontics, School of Dentistry, Seoul National University) ;
  • Park, Ji-Man (Department of Dentistry, School of Medicine, Ewha Womans University) ;
  • Millstein, Philip (Division of Biomaterials and Prosthodontics, Harvard School of Dental Medicine) ;
  • Park, Eun-Jin (Department of Dentistry, School of Medicine, Ewha Womans University)
  • 투고 : 2014.02.20
  • 심사 : 2014.04.20
  • 발행 : 2014.06.30
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초록

목적: 본 연구는 두가지 다른 방법에 의한 레진강화형 글래스 아이오노머(RMGI) 이장재의 적용이 2급와동 복합레진수복의 미세누출에 미치는 영향을 조사하고자 하였다. 연구 재료 및 방법: 36개의 발치한 치아에 2급 와동을 형성한 뒤 무작위로 3개의 군으로 나누었다. 1군은 대조군으로 이장재를 적용하지 않았으며, 2군은 치과용 탐침으로 RMGI 이장재 적용, 3군은 특별히 고안된 버로 RMGI 이장재를 적용한 뒤 복합레진은 똑같이 통상적인 방법으로 적층수복하였다. 2% 메틸렌 블루 염색한 뒤 치아장축과 평행하게 순설 방향으로 절단하여 미세누출을 현미경과 컴퓨터 프로그램을 사용하여 분석을 하였다. 데이터는 Kruskal-Wallis test와 Mann-Whitney U-test (P < 0.05)로 분석하였다. 결과: RMGI 이장재가 적용된 군은 그렇지 않은 군보다 월등히 적은 미세누출을 보였으며, 특히 특수 고안된 버를 사용한 군의 50%에서는 전혀 미세누출을 보이지 않았다. 그러나, 2군과 3군의 결과에서 통계적으로 유의한 차이는 관찰되지 않았다. 결론: 2급와동의 복합레진 수복에서 RMGI 이장재는 그 적용 방법에 관계없이 미세누출을 감소시키는데 효과적인 재료이다.

Purpose: The purpose of this study was to investigate the microleakage in class II cavity resin restorations used with resin-modified glass ionomer (RMGI) lining material depending on two different applying methods; classical delivery method using a dental explorer and a specially designed rotating bur. Materials and Methods: A total thirty-six extracted teeth were prepared with a class II proximal box, and randomly divided into three groups: 1) control group with no lining added and the proximal box restored (Group I), 2) the second group used RMGI as a lining material which was spread with an explorer (Group II), 3) the third group used a specially designed rotating bur to thin out RMGI (Group III). All teeth were restored with the same manner using incrementally placed resin composite. All 36 teeth were prepared and sectioned for the dye penetration test, and observed with a stereomicroscope for scoring the dye penetration. Results: When RMGI liners were used, both groups using an explorer and the special bur with the liner had significantly less microleakage than the control group with no liner (P < 0.05). The 50% of the group with RMGI liner using the bur showed no microleakage under a dye penetration test whereas all the teeth in control group showed microleakage of different degrees. However, there was no statistically significant difference between Group II and Group III. Conclusion: RMGI is an effective lining material to decrease microleakage in class II composite resin restorations regardless of applying methods.

키워드

참고문헌

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피인용 문헌

  1. Cavity Bases Revisited vol.12, pp.None, 2014, https://doi.org/10.2147/ccide.s263414