Influence of powdered dentin on the shear bond strength of dentin bonding systems

被引:2
作者
Dalkilic, Evrim Eliguzeloglu [1 ]
Genc, Ozgur [2 ]
Ozcopur, Betul [2 ]
Belli, Sema [3 ]
Eskitascioglu, Gurcan [4 ,5 ]
Oezcan, Mutlu [6 ]
机构
[1] Yuzuncu Yil Univ, Fac Dent, Dept Restorat Dent, TR-65080 Kampus, Van, Turkey
[2] Yuzuncu Yil Univ, Fac Dent, Dept Endodont, TR-65080 Kampus, Van, Turkey
[3] Selcuk Univ, Fac Dent, Dept Endodont, Konya, Turkey
[4] Yuzuncu Yil Univ, Fac Dent, Dept Prosthet Dent, TR-65080 Kampus, Van, Turkey
[5] Gazi Univ, TR-65080 Kampus, Van, Turkey
[6] Univ Zurich, Dent Mat Unit, Ctr Dent & Oral Med, Clin Fixed & Removable Prosthodont & Dent Mat Sci, CH-8032 Zurich, Switzerland
关键词
Adhesive; Shear bond strength; Powdered dentin; ADHESIVE APPLICATION; PH CHANGES; LAYER;
D O I
10.4012/dmj.2011-273
中图分类号
R78 [口腔科学];
学科分类号
100302 [口腔临床医学];
摘要
This study evaluated the effect of different amounts of dentin powder (DP) mixed in Clearfil SE Bond (CSB) or Single Bond (SB) on adhesion to dentin. Human third molars (n=96) were sectioned to expose the mid-coronal dentin and divided into eight experimental groups (n=12 per group), namely, Group 1: CSB, Group 2: CSB+1.5 mg DP, Group 3: CSB+3 mg DP, Group 4: CSB+4.5 mg DP, Group 5: SB, Group 6: SB+1.5 mg DP, Group 7: SB+3 mg DP, and Group 8: SB+4.5 mg DP. Filtek Z250 composite was bonded onto dentin, and all specimens were subjected to shear bond strength test at a crosshead speed of 1 mm/min. Highest bond strength was obtained in Groups 1, 2, and 3 (15.1, 13.5, and 16.4 MPa respectively; p>0.05) and the lowest in Groups 6, 7, and 8 (5.5, 5.6, 4 MPa; p>0.05). DP addition, regardless of amount, adversely affected the bond strength of SB. Bond strength of CSB was not affected when 1.5 or 3 rag of DP was added.
引用
收藏
页码:758 / 764
页数:7
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