대한치과기공학회지 (Journal of Technologic Dentistry)

  • 제37권4호
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  • Pages.243-250
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  • 2015
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  • 1229-3954(pISSN)
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  • 2288-5218(eISSN)
대한치과기공학회 (Korean Academy of Dental Technology)
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지르코니아 코핑과 전장도재 간의 전단결합강도와 파절양상 비교

A comparative study of the shear bond strength and failure mode between zirconia copings and veneering ceramics

  • 김원영 (부산가톨릭대학교 보건과학대학 치기공학과, 치과기공기재학회) ;
  • 전병욱 (부산가톨릭대학교 보건과학대학 치기공학과, 치과기공기재학회) ;
  • 정인성 (부산가톨릭대학교 보건과학대학 치기공학과, 치과기공기재학회)
  • Kim, Won-Young (Dept. of Dental Laboratory Science, College of Health Science, Catholic University of Pusan) ;
  • Jeon, Byung-Wook (Dept. of Dental Laboratory Science, College of Health Science, Catholic University of Pusan) ;
  • Chung, In-Sung (Dept. of Dental Laboratory Science, College of Health Science, Catholic University of Pusan)
  • 투고 : 2015.10.30
  • 심사 : 2015.12.18
  • 발행 : 2015.12.30
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초록

Purpose: The aim of this study was to investigate the shear bond strength between various commercial zirconia coping and veneering ceramic, and to observe the failure mode. Methods: For each zirconia block (iJAM Emerald, LUXEN Smile block, ICE Zirkon transluzent), 10 rectangular specimens were layered with Cercon ceram kiss, IPS e.max ceram, ICE Zirkon ceramic according to recommended by the manufacturer. The shear bond strength tests of the veneering porcelain to zirconia were carried out until fracture by a universal testing machine. After the shear bond tests, failure modes were characterized visually, under a stereomicroscope, such as adhesive, cohesive, or mixed. Data were analyzed with One-way ANOVA followed by Scheffe's tests. Results: The shear bond strength ($mean{\pm}SD$) of zirconia-veneer ceramic were JC group $13.9{\pm}3.6MPa$; JE group $17.7{\pm}2.4MPa$; JI group $15.1{\pm}2.5MPa$; LC group $9.5{\pm}1.5MPa$; LE group $16.2{\pm}2.3MPa$; LI group $12.6{\pm}0.8MPa$; ZC group $16.0{\pm}2.3MPa$; ZE group $18.5{\pm}3.4MPa$; and ZI group $15.3{\pm}3.2MPa$. The One-way ANOVA showed a significant difference between groups (p<0.05). The failure mode in most experimental groups was mixed failure, except for the LC group, which showed adhesive failure, and JE group, LE group and ZE group showed cohesive failure. Conclusion: For IPS e.max ceram, the shear bond strength value was highest for all kinds of zirconia blocks. For ICE Zirkon transluzent, the shear bond strength value was highest for all kinds of veneering ceramics. Most of experimental group interfaces revealed mixed failure mode.

키워드

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