Comparison of the flexural strength of sheets manufactured in three types of zirconium dioxide with two sintering times

Authors

DOI:

https://doi.org/10.17533/udea.rfo.v32n2a7

Keywords:

Flexural strength, Mechanical properties, Zirconium dioxide, ZrO2

Abstract


Introduction: yttrium-stabilized zirconium dioxide (zirconia) has been used to manufacture fixed partial prosthesis due to its high flexural strength. However, there are no available studies comparing the effect of two sintering techniques on flexural strength. This study aims to compare the flexural strength of zirconia sheets manufactured with two sintering techniques. Method: for this in vitro study, three zirconia disks were used (Upcera: Super Translucent (ST): 1200 MPa, Multi-Layer (ML): 600 MPa and High Translucent (HT): 1200 MPa), using an Isomet® cutter to prepare 60 sheets 2 mm thick, 5 mm wide and 37 mm long. These sheets were randomly distributed into two groups of 30: the first group was sintered for 8 hours at 1,530°C and the second group was subjected to fast sintering for 3 hours at 1,530°C. The flexural strength in Newton was measured on an Instrom® 3366 Universal Testing Machine. The results were converted from N to MPa and compared by ANOVA and t test. Results: no statistically significant difference was found in the flexural strength of the two groups (p>0,05). Conclusion: the two compared sintering procedures do not affect the flexural strength of zirconia sheets.

|Abstract
= 268 veces | PDF
= 176 veces| | HTML
= 3 veces|

Downloads

Download data is not yet available.

Author Biographies

Edgar Torres-Durán, Fundación Universitaria CIEO - UniCIEO

Oral Rehabilitator. Laboratory Coordinator, Fundación Universitaria CIEO - UniCIEO

Elías George-Díaz, Fundación Universitaria CIEO - UniCIEO

Oral Rehabilitation Intern, Fundación Universitaria CIEO - UniCIEO

Ismer Enrique Tami-Parada, Fundación Universitaria CIEO - UniCIEO

Oral Rehabilitation Intern, Fundación Universitaria CIEO - UniCIEO

Jessika Johanna Gutiérrez-Ortiz, Fundación Universitaria CIEO - UniCIEO

Oral Rehabilitation Intern, Fundación Universitaria CIEO - UniCIEO

References

Hu L, Wang Ch. Effect of sintering temperature on compressive strength of porous yttrium-stabilized zirconia ceramic. Ceram Int. 2010; 36(5):1697-01. DOI: https://doi.org/10.1016/j.ceramint.2010.03.009

Montagna F, Barbesi M. Biomateriales dentales y procesos de laboratorio dental cerámicas, zirconio y CAD/CAM. En: Cerámicas, Zirconio y CAD/CAM.Venezuela: Amolca; 2013, p 151–78.

Ebeid K, Wille S, Hamdy A, Salah T, El-etreby A, Kern M. Effect of changes in sintering parameters on monolithic translucent zirconia. Acad Dent Mater. 2014; 30(12):419–24. DOI: https://doi.org/10.1016/j.dental.2014.09.003

Piconi C, Rimondini L, Cerroni L. El zirconio en odontología. Bogotá: Panamericana; 2011.

Acevedo A, Castañeda A, Milanes I. Comparación al MEB de diferentes tratamientos térmicos de y-tzp rectificados con fresas de diamante post-sinterización [Thesis]. Bogotá: UniCIEO; 2012.

Stawarczyk B, Ozcan M, Hallmann L, Ender A, Mehl A, Hmmerlet CHF. The effect of zirconia sintering temperature on flexural strength, grain size and contrast ratio. Clin Oral Investig. 2013; 17(1): 269-74. DOI: https://doi.org/10.1007/s00784-012-0692-6

Hjerppe J, Narhi O, Pekka K, Lassila L. Surface roughness and the flexural and bend strength of zirconia after different surface treatments. J Prosthet Dent. 2016; 116(4): 577-83. DOI: https://doi.org/10.1016/j.prosdent.2016.02.018

Sedda M, Vichi A, Carrabba M, Capperucci A, Louca C, Ferrari M. Influence of coloring procedure on flexural strength of zirconia blocks. J Prosthet Dent. 2015; 114(1): 98-102. DOI: https://doi.org/10.1016/j.prosdent.2015.02.001

Dahl P, Kaus L, Zhao Z, Johnsson M, Nygren M, Wiik K et al. Densification and properties of zirconia prepared by three different sintering techniques. Ceram Int. 2007; 33(8); 1603-10. DOI: https://doi.org/10.1016/j.ceramint.2006.07.005

Stawarczyk B, Keul C, Eichberger M, Figge D, Edelhoff D, Lümkeman N. Three generations of zirconia: from veneered to monolithic. Part II. J Quintessence Inter Rest Dent. 2017; 48(5): 369-80. DOI: https://doi.org/10.3290/j.qi.a38057

Stawarczyk B, Keul C, Eichberger M, Figge D, Edelhoff D, Lümkemann N. Three generations of zirconia: from veneered to monolithic. Part I. J Quintessence Inter Rest Dent. 2017; 48(6): 441-50. DOI: https://doi.org/10.3290/j.qi.a38157

Downloads

Published

2020-11-17

How to Cite

Torres-Durán, E., George-Díaz, E., Tami-Parada, I. E., & Gutiérrez-Ortiz, J. J. (2020). Comparison of the flexural strength of sheets manufactured in three types of zirconium dioxide with two sintering times. Revista Facultad De Odontología Universidad De Antioquia, 32(2), 75–81. https://doi.org/10.17533/udea.rfo.v32n2a7