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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2017.3
- 수록면
- 69 - 77 (9page)
- DOI
- 10.14815/kjdm.2017.44.1.069
이용수
초록· 키워드
오류제보하기
The aim of this study was to investigate the effects of chitosan powder addition on the strengthening of conventional glass ionomer cement. Two types of chitosan powders with different molecular weight were mixed with conventional glass ionomer cement (GIC): low-molecular weight chitosan (CL; 50∼190 kDa), high-molecular weight chitosan (CH; 310∼375 kDa). The chitosan powders (CL and CH) were separately added into the GIC liquid (0.25-0.5 wt%) under magnetic stirring, or mixed with the GIC powder by ball-milling for 24 h using zirconia balls. The mixing ratio of prepared cement was 2:1 for powder to liquid. Net setting time of cements was measured by ISO 9917-1. The specimens for the compressive strength (CS; 4 x 6 mm), diametral tensile strength (DTS; 6 x 4 mm), three-point flexure (FS; 2 x 2 x 25 mm) with flexure modulus (FM) were obtained from cements at 1, 7, and 14 days after storing in distilled water at (37±1)℃. All mechanical strength tests were conducted with a cross-head speed of 1 mm/min. Data were statistically analyzed by one-way ANOVA and Tukey HSD post-hoc test. The mechanical properties of conventional glass ionomer cement was significantly enhanced by addition of 0.5 wt% CL to cement liquid (CS, DTS), or by addition of 10 wt% CH (FS) to cement powder. The CL particles incorporated into the set cement were firmly bonded to the GIC matrix (SEM). Within the limitation of this study, the results indicated that chitosan powders can be successfully added to enhance the mechanical properties of conventional GIC.
목차
Abstract
Ⅰ. 서론
Ⅱ. 재료 및 방법
Ⅲ. 결과
Ⅳ. 고찰
Ⅴ. 결론
Ⅵ. 참고문헌
참고문헌 (32)
참고문헌 신청
[학술지(정기간행물)] - Abo-Mosallam HA / 2016 / Influence of ZrO 2 oxide on the properties and crystallization of calcium fluoro-alumino-silicate glasses / Ceram Int 42 (4) : 5107 ~ 5112
[단행본] - Anusavice KJ / 2013 / Phillip’s science of dental materials : 307 ~ 339
[학술지(정기간행물)] - Arita K / 2011 / Hydroxyapatite particle characteristics influence the enhancement of the mechanical and chemical properties of conventional restorative glass ionomer cement / Dent Mater J 30 (5) : 672 ~ 683
[학술지(정기간행물)] - Barandehfard F / 2016 / The addition of synthesized hydroxyapatite and fluorapatite nanoparticles to a glass-ionomer cement for dental restoration and its effects on mechanical properties / Ceram Int 42 (15) : 17866 ~ 17875
[학술지(정기간행물)] - Bertolini MJ / 2009 / Preparation and evaluation of an experimental luting glass ionomer cement to be used in dentistry / J Mater Sci Mater Med 20 (9) : 1781 ~ 1785
[단행본] - Anusavice KJ / 2013 / Phillip’s science of dental materials : 307 ~ 339
[학술지(정기간행물)] - Arita K / 2011 / Hydroxyapatite particle characteristics influence the enhancement of the mechanical and chemical properties of conventional restorative glass ionomer cement / Dent Mater J 30 (5) : 672 ~ 683
[학술지(정기간행물)] - Barandehfard F / 2016 / The addition of synthesized hydroxyapatite and fluorapatite nanoparticles to a glass-ionomer cement for dental restoration and its effects on mechanical properties / Ceram Int 42 (15) : 17866 ~ 17875
[학술지(정기간행물)] - Bertolini MJ / 2009 / Preparation and evaluation of an experimental luting glass ionomer cement to be used in dentistry / J Mater Sci Mater Med 20 (9) : 1781 ~ 1785
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UCI(KEPA) : I410-ECN-0101-2017-515-002356904