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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2014.6
- 수록면
- 95 - 103 (9page)
- DOI
- 10.14815/kjdm.2014.41.2.95
이용수
초록· 키워드
오류제보하기
This study was intended to investigate the effect of applying liner for chemical bonding and physical surface roughness created on Yttria-toughened zirconia (YTZ core) by using a polishing tool before sintering on the bond strength between the two materials. YTZ blocks(Fine Base, K&F, Korea, 15mm×15mm ×4mm) were cut using a low-speed cutter. Plate-shaped specimen (6mm×6mm×3mm) was fabricated by sintering after giving surface roughness according to three kinds of polishing tools. Depending on whether or not to use liner, 60 specimens were divided into two groups ZP(non-liner), ZLP(liner), and the two groups were subdivided into three groups respectively in accordance with polishing tools used, totaling six groups (n=10). The surface roughness (Ra) values and shapes before sintering were observed, and shear bond strength after veneer ceramic plasticity was measured with a universal testing machine. For a test of the significance, a one-way ANOVA was performed, and Tukey"s multiple comparison test was conducted. The observation of fracture surfaces using an optical microscope revealed that the surface roughness was SZ(1.10±0.76㎛)<CZ(1.92±0.41㎛)<PZ(3.08±0.58㎛). In the case of ZP Group, the shear bond strength was SZ(27.82±1.97㎫)<PZ(30.94±3.84㎫)<CZ(38.56±2.09㎫) in order, and CZ showed the highest shear bond strength of all experimental groups(p<0.05). As for ZLP Group, there was no statistically significant difference in the shear bond strength between groups with SLZ(26.7±2.8㎫), PLZ(27.1±1.6㎫), CLZ(28.1±3.2㎫)(p>0.05). The research results showed that the bond strength of YTZ core and veneering ceramic was further improved by physical surface treatment before sintering, rather than by chemical bonding through liner surface treatment.
목차
ABSTRACT
INTRODUCTION
MATERIALS AND METHODS
RESULTS
DISCUSSION
Conclusion
REFERENCES
참고문헌 (24)
참고문헌 신청
1. [학술지(정기간행물)] - Aboushelib MN / 2005 / Microtensile bond strength of different components of core veneered all-ceramic restorations / Dent Mater 21 (10) : 984 ~ 991
2. [학술지(정기간행물)] - Aboushelib MN / 2008 / Effect of veneering method on the fracture and bond strength of bilayered zirconia restorations / International Journal of Prosthodontics 21 (3) : 237 ~ 240
3. [학술지(정기간행물)] - Aboushelib MN / 2006 / Microtensile bond strength of different components of core veneered all-ceramic restorations: Part II:Zirconia veneering ceramics / Dent Mater 22 (9) : 857 ~ 863
4. [학술지(정기간행물)] - Albakry M / 2003 / Fracture toughness and hardness evaluation of three pressable all-ceramic dental materials / J Dent 31 (3) : 181 ~ 188
5. [학술지(정기간행물)] - Al-Dohan HM / 2004 / Shear strength of core-veneer interface in bi-layered ceramics / J prosthet Dent 91 (4) : 349 ~ 355
2. [학술지(정기간행물)] - Aboushelib MN / 2008 / Effect of veneering method on the fracture and bond strength of bilayered zirconia restorations / International Journal of Prosthodontics 21 (3) : 237 ~ 240
3. [학술지(정기간행물)] - Aboushelib MN / 2006 / Microtensile bond strength of different components of core veneered all-ceramic restorations: Part II:Zirconia veneering ceramics / Dent Mater 22 (9) : 857 ~ 863
4. [학술지(정기간행물)] - Albakry M / 2003 / Fracture toughness and hardness evaluation of three pressable all-ceramic dental materials / J Dent 31 (3) : 181 ~ 188
5. [학술지(정기간행물)] - Al-Dohan HM / 2004 / Shear strength of core-veneer interface in bi-layered ceramics / J prosthet Dent 91 (4) : 349 ~ 355
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UCI(KEPA) : I410-ECN-0101-2015-510-002507031