지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학위논문
- 저자정보
- 지도교수
- 고영무
- 발행연도
- 2016
- 저작권
- 조선대학교 논문은 저작권에 의해 보호받습니다.
이용수1
이 논문의 연구 히스토리 (2)
- 이 논문의 후속연구가 궁금하신가요?
- 연관 학술논문 또는 학술발표를 통해 보다 발전된 연구결과를 확인하실 수 있습니다.
- 이 논문의 연구 히스토리 확인하기
초록· 키워드
오류제보하기
Fabrication of composite resin blocks by combining high strength of ceramic fillers with excellent fracture toughness of resin matrix, which can be applied to CAD/CAM restoration was investigated in this study.
Ceramic fillers were heat-treated quenched glasses in order to crystallize the lithium disilicate phase, then milled into average size of 3.4 μm and subsequently silanated. They were mixed with resin matrix, which was prepared by mixing TEGDMA into Bis-GMA with weight ratio of 4:6 with benzoyl peroxide as a thermal curing initiator as well butylated hydroxytoluene as a polymerization inhibitor, and thermal cured into blocks.
Flexural strength, cured depth, water sorption, solubility, radio-opacity, distortion, cracking, porosity, blanching were determined according to international standard ISO 4049 Dentistry-Polymer-based restorative materials, ISO 6872 Dentistry-Ceramic materials, and ISO 22112 Dentistry-Artificial teeth for dental prostheses.
Flexural strength of the fillers increased after crystallization in all composition and reached maximum 323.0 MPa with addition of BaO, MgO, CaO and Al2O3.
The optimum allowance of the thermal curing initiator was 0.3 wt% cosidering stability in shelf, though the flexural strength of resin matrix was increased with increasing thermal curing initiator. The optimal thermal curing condition was 80℃ for 12 hrs due to distortion and cracking when cured at higher temperature for longer time. Flexural strength of the composite resin block was increased with increasing the content of the filler, then reached 198.0 MPa at 70 wt%.
The fabricated composite resin block is expected to be CAD/CAM block in dental resotration.
Ceramic fillers were heat-treated quenched glasses in order to crystallize the lithium disilicate phase, then milled into average size of 3.4 μm and subsequently silanated. They were mixed with resin matrix, which was prepared by mixing TEGDMA into Bis-GMA with weight ratio of 4:6 with benzoyl peroxide as a thermal curing initiator as well butylated hydroxytoluene as a polymerization inhibitor, and thermal cured into blocks.
Flexural strength, cured depth, water sorption, solubility, radio-opacity, distortion, cracking, porosity, blanching were determined according to international standard ISO 4049 Dentistry-Polymer-based restorative materials, ISO 6872 Dentistry-Ceramic materials, and ISO 22112 Dentistry-Artificial teeth for dental prostheses.
Flexural strength of the fillers increased after crystallization in all composition and reached maximum 323.0 MPa with addition of BaO, MgO, CaO and Al2O3.
The optimum allowance of the thermal curing initiator was 0.3 wt% cosidering stability in shelf, though the flexural strength of resin matrix was increased with increasing thermal curing initiator. The optimal thermal curing condition was 80℃ for 12 hrs due to distortion and cracking when cured at higher temperature for longer time. Flexural strength of the composite resin block was increased with increasing the content of the filler, then reached 198.0 MPa at 70 wt%.
The fabricated composite resin block is expected to be CAD/CAM block in dental resotration.
목차
목 차ABSTRACT iv서 론 1재료 및 방법 3(1) 실험재료 3가. 필러 제조 3나. 필러의 실란 처리 4다. 레진 제조 4라. 블록 제조 4(2) 실험방법 9가. 열 분석 9나. X선 회절 분석 9다. 입도 분석 9라. 굴곡 강도 측정 9마. 중합 깊이 측정 10바. 물흡수도 및 용해도 측정 10사. 기포 및 결함 관찰 10아. 탈색, 변형, 균열 관찰 11자. 방사선 불투과도 측정 11연구 결과 12총괄 및 고찰 19결 론 25참고문헌 26
최근 본 자료
댓글(0)
0