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Effect of water aging on microtensile bond strength of dual-cured resin cements to pre-treated sintered zirconium-oxide ceramics.
Dent Mater. 2009 Mar; 25(3):392-9.DM

Abstract

OBJECTIVES

To evaluate the hydrolytic stability of different dual-cure resin cements when luted to zirconia ceramic.

METHODS

Eighteen cylinder-shaped zirconia blocks (Cercon Zirconia, Dentsply) were conditioned with: Group 1, no treatment; Group 2, sandblasting (125microm alumina-Al(2)O(3)-particles); Group 3, tribochemical silica coating (50microm silica-modified Al(2)O(3) particles). Ceramic blocks were duplicated in composite resin (Tetric Evo Ceram, Ivoclar-Vivadent). Composite disks were luted to pre-treated ceramic surfaces using: (1) Clearfil Esthetic Cement (CEC; Kuraray); (2) Rely X Unicem (RXU; 3M ESPE); (3) Calibra (CAL; Dentsply Caulk). After 24h, bonded samples were cut into microtensile sticks (1mm(2)). Half of the sticks were loaded in tension until failure (cross-head speed of 0.5mm/min). The remaining half was tested after 6 months of water storage at 37 degrees C. Data was analyzed with three-way ANOVA and Tukey's test (P<0.05). Fractographic analysis was performed by SEM.

RESULTS

After 24h, bond strength of CEC to zirconia was significantly higher than that of RXU and CAL, independently from the ceramic pre-treatment (P<0.001). Using CAL, all samples failed prematurely except when luting to sandblasted surfaces. After 6 months of water aging, bond strength of CEC significantly decreased. RXU did not significantly alter bond strengths. Adhesion of sandblasted specimens luted with CAL fell over time. Micromorphological alterations were evident after water storage.

SIGNIFICANCE

Resin-ceramic interfacial longevity depended on cement selection rather than on surface pre-treatments. CEC and RXU were both suitable for luting zirconia. Water aging played an important role in the durability of zirconia-to-composite chemical bonds.

Authors+Show Affiliations

Department of Prosthodontics, Faculty of Dentistry, University Complutense of Madrid, Madrid, Spain. siete_rosas.rc@hotmail.comNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article
Randomized Controlled Trial
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

18952276

Citation

Oyagüe, Raquel Castillo, et al. "Effect of Water Aging On Microtensile Bond Strength of Dual-cured Resin Cements to Pre-treated Sintered Zirconium-oxide Ceramics." Dental Materials : Official Publication of the Academy of Dental Materials, vol. 25, no. 3, 2009, pp. 392-9.
Oyagüe RC, Monticelli F, Toledano M, et al. Effect of water aging on microtensile bond strength of dual-cured resin cements to pre-treated sintered zirconium-oxide ceramics. Dent Mater. 2009;25(3):392-9.
Oyagüe, R. C., Monticelli, F., Toledano, M., Osorio, E., Ferrari, M., & Osorio, R. (2009). Effect of water aging on microtensile bond strength of dual-cured resin cements to pre-treated sintered zirconium-oxide ceramics. Dental Materials : Official Publication of the Academy of Dental Materials, 25(3), 392-9. https://doi.org/10.1016/j.dental.2008.09.002
Oyagüe RC, et al. Effect of Water Aging On Microtensile Bond Strength of Dual-cured Resin Cements to Pre-treated Sintered Zirconium-oxide Ceramics. Dent Mater. 2009;25(3):392-9. PubMed PMID: 18952276.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effect of water aging on microtensile bond strength of dual-cured resin cements to pre-treated sintered zirconium-oxide ceramics. AU - Oyagüe,Raquel Castillo, AU - Monticelli,Francesca, AU - Toledano,Manuel, AU - Osorio,Estrella, AU - Ferrari,Marco, AU - Osorio,Raquel, Y1 - 2008/10/25/ PY - 2008/07/29/received PY - 2008/09/15/accepted PY - 2008/10/28/pubmed PY - 2009/5/23/medline PY - 2008/10/28/entrez SP - 392 EP - 9 JF - Dental materials : official publication of the Academy of Dental Materials JO - Dent Mater VL - 25 IS - 3 N2 - OBJECTIVES: To evaluate the hydrolytic stability of different dual-cure resin cements when luted to zirconia ceramic. METHODS: Eighteen cylinder-shaped zirconia blocks (Cercon Zirconia, Dentsply) were conditioned with: Group 1, no treatment; Group 2, sandblasting (125microm alumina-Al(2)O(3)-particles); Group 3, tribochemical silica coating (50microm silica-modified Al(2)O(3) particles). Ceramic blocks were duplicated in composite resin (Tetric Evo Ceram, Ivoclar-Vivadent). Composite disks were luted to pre-treated ceramic surfaces using: (1) Clearfil Esthetic Cement (CEC; Kuraray); (2) Rely X Unicem (RXU; 3M ESPE); (3) Calibra (CAL; Dentsply Caulk). After 24h, bonded samples were cut into microtensile sticks (1mm(2)). Half of the sticks were loaded in tension until failure (cross-head speed of 0.5mm/min). The remaining half was tested after 6 months of water storage at 37 degrees C. Data was analyzed with three-way ANOVA and Tukey's test (P<0.05). Fractographic analysis was performed by SEM. RESULTS: After 24h, bond strength of CEC to zirconia was significantly higher than that of RXU and CAL, independently from the ceramic pre-treatment (P<0.001). Using CAL, all samples failed prematurely except when luting to sandblasted surfaces. After 6 months of water aging, bond strength of CEC significantly decreased. RXU did not significantly alter bond strengths. Adhesion of sandblasted specimens luted with CAL fell over time. Micromorphological alterations were evident after water storage. SIGNIFICANCE: Resin-ceramic interfacial longevity depended on cement selection rather than on surface pre-treatments. CEC and RXU were both suitable for luting zirconia. Water aging played an important role in the durability of zirconia-to-composite chemical bonds. SN - 1879-0097 UR - https://www.unboundmedicine.com/medline/citation/18952276/Effect_of_water_aging_on_microtensile_bond_strength_of_dual_cured_resin_cements_to_pre_treated_sintered_zirconium_oxide_ceramics_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0109-5641(08)00231-5 DB - PRIME DP - Unbound Medicine ER -