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커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2016.3
- 수록면
- 43 - 50 (8page)
- DOI
- 10.14815/kjdm.2016.43.1.43
이용수
이 논문의 연구 히스토리 (7)
2012
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초록· 키워드
오류제보하기
The aim of this study was to investigate the effect of multiwall carbon nanotube functionalized with carboxyl group (MWCNT-COOH) on the mechanical properties of dental glassionomer cement (GIC). MWCNT-COOH was prepared by the acid oxidative method. The MWCNT-COOH was incorporated into a commercial GIC powder or liquid at 0.5 wt% or 1.0 wt%. The net setting time of the cements was measured in accordance with ISO 9917 (Dental water-based cement). Specimens for compressive strength (4 mmφ × 6 mm), diametral tensile strength (6 mmφ × 4 mm) and flexure strength with modulus (2 mm × 2 mm × 25 mm) were prepared by mixing with the cement liquid and kept in water bath of (37±1)℃. Mechanical tests were conducted in 1 d, 7 d, and 14 days at a cross-head speed of 1 mm/min. Compressive strength of GIC mixed with 0.5 wt% MWCNT-COOH increased significantly at 7 d. However, overall mechanical properties of GIC modified with MWCNT were not significantly increased with a delayed setting time, in comparison with control cement. Overall results indicated that the MWCNT/GIC composite cements showed a limited strengthening effect for dental glassionomer cement.
목차
〈Abstract〉
Ⅰ. INTRODUCTION
Ⅱ. MATERIALS AND METHODS
Ⅲ. RESULTS
Ⅳ. DISCUSSION
Ⅴ. REFERENCES
참고문헌 (33)
참고문헌 신청
Anusavice KJ. Phillip's science of dental materials (2003).
Baughman RH, Zakhidov AA, De Heer WA (2002). Carbon nanotubes the route toward applications. Science 297(5582):787-792.
Chaipanich A, Nochaiya T, Wongkeo W, Torkittikul P (2010). Compressive strength and microstructure of carbon nanotubes–fly ash cement composites. Mater Sci Eng A 527(4):1063-1067.
Choi JY, Lee HH, Kim HW (2008). Bioactive sol-gel glass added ionomer cement for the regeneration of tooth structure. J Mater Sci Mater Med 19(10):3287-3294.
Crisp S, Lewis BG, Wilson AD (1976). Characterization of glass ionomer cement:2 Effect of powder to liquid ratio on the physical properties. J Dent 4(6)287-290.
Baughman RH, Zakhidov AA, De Heer WA (2002). Carbon nanotubes the route toward applications. Science 297(5582):787-792.
Chaipanich A, Nochaiya T, Wongkeo W, Torkittikul P (2010). Compressive strength and microstructure of carbon nanotubes–fly ash cement composites. Mater Sci Eng A 527(4):1063-1067.
Choi JY, Lee HH, Kim HW (2008). Bioactive sol-gel glass added ionomer cement for the regeneration of tooth structure. J Mater Sci Mater Med 19(10):3287-3294.
Crisp S, Lewis BG, Wilson AD (1976). Characterization of glass ionomer cement:2 Effect of powder to liquid ratio on the physical properties. J Dent 4(6)287-290.
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UCI(KEPA) : I410-ECN-0101-2016-515-002731321