Effects of Double Application of a Resin Cement Primer and Different Diamond Burs on Cement-Dentin Bond Strength.
In: The journal of adhesive dentistry, Jg. 22 (2020), Heft 3, S. 311-320
academicJournal
Zugriff:
Purpose: To evaluate the effects of double application of resin cement primers to dentin prepared with different diamond burs on the cement-dentin bond strengths.
Materials and Methods: Sixty flat dentin surfaces were prepared and divided into 12 groups (n = 5) according to three experimental factors: 1. resin cements: RelyX Ultimate (RU), Multilink Automix (ML), and Panavia V5 (PV); 2. resin cement primer application: single or double; 3. dentin surface preparation with regular or superfine diamond burs. Cement-dentin sticks (1 mm2) were prepared for and underwent microtensile bond strength testing (µTBS). Statistical analysis was performed using three-way ANOVA and Duncan's test (α = 0.05). Fractured surfaces and cement-dentin interfaces were observed using SEM. Additional teeth were used to observe the demineralization effect of resin cement primers with SEM and transmission electron microscopy (TEM).
Results: All tested factors demonstrated significant effects on µTBS (p < 0.001). The combination of PV with superfine-grit bur and double application yielded the highest bond strengths. Surfaces prepared with superfine-grit burs demonstrated higher µTBS than did the regular-grit group, but a significant effect was not observed for all groups. The double application of primer significantly increased the bond strength for most combinations, except for PV with superfine-grit bur-prepared dentin.
Conclusions: PV showed higher bond strengths than other resin cements. Double application of primer improved the bond strength of all cements to dentin. Bond strengths were higher when dentin was prepared with a superfine-grit bur.
Titel: |
Effects of Double Application of a Resin Cement Primer and Different Diamond Burs on Cement-Dentin Bond Strength.
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Autor/in / Beteiligte Person: | Saikaew, P ; Chowdhury, AFMA ; Matsumoto, M ; Carvalho, RM ; Sano, H |
Zeitschrift: | The journal of adhesive dentistry, Jg. 22 (2020), Heft 3, S. 311-320 |
Veröffentlichung: | 2019- : Berlin, Germany : Quintessenz Verlags-GMBH ; <i>Original Publication</i>: New Malden, Surrey : Quintessence Pub. Co., c1999-c2018., 2020 |
Medientyp: | academicJournal |
ISSN: | 1757-9988 (electronic) |
DOI: | 10.3290/j.jad.a44554 |
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