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논문 기본 정보

자료유형
학위논문
저자정보

김희라 (경북대학교, 경북대학교 대학원)

지도교수
남순현
발행연도
2019
저작권
경북대학교 논문은 저작권에 의해 보호받습니다.

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이 논문의 연구 히스토리 (2)

초록· 키워드

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The purposre of this study was to compare the degree of conversion and polymerization shrinkage of low- and high-viscosity bulk-fill giomer composites, bulk-fill composites and conventional composites. Two bulk-fill giomer (Beautifil Bulk Restorative(BBR), Beautifil Bulk Flowable(BBF)), two bulk-fill (Tetric N-Ceram Bulk-fill(TBF), SureFil SDR flow(SDR)) and two conventional resin composites (Tetric N-Ceram(TN), Tetric N-flow(TF)) were used in this study. The degree of conversion(DC) was measured by using Fourier transform infrared spectroscopy. Polymerization shrinkage was measured with a linometer. For all depth, BBR had the lowest DC, and SDR had the highest value. At 4 mm, the DC of low and high viscosity bulk-fill giomer composites was lower than that of bulk-fill composites (p < 0.05). At the depth between 2 and 4 mm, there were significant difference with TBF, TN and TF (p < 0.05), while no significant difference in the DC was measured for BBR, BBF and SDR. Polymerization shrinkage of the detected materials decreased in the following order: TF > SDR > BBF > TBF > TN and BBR (p < 0.05). Polymerization shrinkage of bulk-fill giomer composites was lower than that of bulk-fill composites (p < 0.05).
From this study, it was found that the bulk-fill giomer composites and TBF were not sufficiently cured in 4 mm depth. The DC of low and high viscosity bulk-fill giomer composites was significantly lower than bulk-fill composites in both 2 and 4 mm depths.

목차

I. 서 론 1
II. 재료 및 방법 4
1. 복합레진 4
1) 복합레진 4
2) 광중합기 5
2. 전환율 측정 6
3. 중합수축 측정 7
4. 통계 분석 8
III. 결 과 9
1. 전환율 측정 9
1) 고점도 복합레진 9
2) 저점도 복합레진 10
2. 중합수축 측정 11
IV. 토 론 13
V. 결 론 20

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