Restorative Dentistry and Endodontics

  • 제27권6호
  • /
  • Pages.561-568
  • /
  • 2002
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  • 2234-7658(pISSN)
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  • 2234-7666(eISSN)
대한치과보존학회 (The Korean Academy of Conservative Dentistry)
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중합광원과 레진 색상이 복합레진의 중합깊이에 미치는 영향

EFFECT OF LIGHT SOURCE AND SHADE ON DEPTH OF CURE OF COMPOSITES

  • 나준석 (전남대학교 치과대학 보존학교실, 치의학 연구소) ;
  • 정선와 (서남대학교 의과대학 치과학교실) ;
  • 황윤찬 (전남대학교 치과대학 보존학교실, 치의학 연구소) ;
  • 김선호 (전남대학교 치과대학 보존학교실, 치의학 연구소) ;
  • 윤창 (전남대학교 치과대학 보존학교실, 치의학 연구소) ;
  • 오원만 (전남대학교 치과대학 보존학교실, 치의학 연구소) ;
  • 황인남 (전남대학교 치과대학 보존학교실, 치의학 연구소)
  • Na, Joon-Sok (Dept. of Conservative Dentistry, College of Dentistry, DSRI, Chonnam National University) ;
  • Jeong, Sun-Wa (Dept. of Dentistry, College of Medicine, Seonam University) ;
  • Hwang, Yun-Chan (Dept. of Conservative Dentistry, College of Dentistry, DSRI, Chonnam National University) ;
  • Kim, Sun-Ho (Dept. of Conservative Dentistry, College of Dentistry, DSRI, Chonnam National University) ;
  • Yun, Chang (Dept. of Conservative Dentistry, College of Dentistry, DSRI, Chonnam National University) ;
  • Oh, Won-Mann (Dept. of Conservative Dentistry, College of Dentistry, DSRI, Chonnam National University) ;
  • Hwang, In-Nam (Dept. of Conservative Dentistry, College of Dentistry, DSRI, Chonnam National University)
  • 발행 : 2002.11.01
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초록

Purpose of this research is estimating polymerization depth of different source of light. XL 3000 for halo-gen light, Apollo 95E for plasma arc light and Easy cure for LED light source were used in this study. Different shade (B1 & A3) resin composites (Esthet-X, Dentsply, U.S.A.) were used to measure depth of cure. 1, 2, and 3 mm thick samples were light cured for three seconds, six seconds or 10 seconds with Apollo 95E and they were light cured with XL-3000 and Easy cure for 10 seconds, 20 seconds, or 40 seconds. Vicker's hardness test carried out after store samples for 24 hours in distilled water. Results were as following. 1. Curing time increases from al1 source of lights, oui$.$ing depth increased(p<0.05). 2. Depth (that except 1mm group and 2mm group which lighten to halogen source of light) deepens in all groups, Vickers hardness decreased(p<0.05). 3. Vicker's hardness of A3 shade composite was lower in all depths more than B1 shade composites in group that do polymerization for 10 seconds and 20 seconds using halogen source of light(p<0.05), but group that do polymerization lot 40 seconds did not show difference(p>0.05). 4. Groups that do polymerization using Plasma arc and LED source of light did not show Vicker's hardness difference according to color at surface and 1mm depth(p>0.05), but showed difference according to color at 2mm and 3mm depth(p<0.05). The results showed that Apollo 95E need more polymerization times than manufacturer's recommendation (3 seconds), and Easy cure need polymerization time of XL-3000 at least.

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피인용 문헌

  1. Power density of light curing units through resin inlays fabricated with direct and indirect composites vol.35, pp.5, 2010, https://doi.org/10.5395/JKACD.2010.35.5.353