Evaluation of the bond strength and characteristics of zirconia after different surface treatments
| Autor: | Maria Filomena Rocha Lima Huhtala, Eduardo Bresciani, Virgilio Vilas Boas Fernandes Junior, Débora Cristina Barbosa Dantas |
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| Přispěvatelé: | Universidade Estadual Paulista (Unesp) |
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Plasma Gases Surface Properties Abrasion (mechanical) 02 engineering and technology Dental bonding In Vitro Techniques Nonthermal plasma Contact angle Dental Materials 03 medical and health sciences 0302 clinical medicine Acid Etching Dental Materials Testing Surface roughness Yttrium Cubic zirconia Composite material Bond strength Dental Bonding 030206 dentistry 021001 nanoscience & nanotechnology Cementation (geology) Resin Cements Air Abrasion Dental Zirconium Oral Surgery 0210 nano-technology |
| Zdroj: | Web of Science Repositório Institucional da UNESP Universidade Estadual Paulista (UNESP) instacron:UNESP |
| ISSN: | 0022-3913 |
| DOI: | 10.1016/j.prosdent.2018.01.029 |
| Popis: | Made available in DSpace on 2019-10-04T12:33:56Z (GMT). No. of bitstreams: 0 Previous issue date: 2018-12-01 Statement of problem. Nonthermal plasma treatment could increase the bond strength of resin cements to zirconia, but studies are lacking. Purpose. The purpose of this in vitro study was to evaluate zirconia bond strength, surface roughness, and contact angle and to measure the infrared spectrum after different surface treatments. Material and methods. Yttria-stabilized tetragonal zirconia polycrystal (Y-TZP; n=9) blocks were sectioned into 36 slices (12x11x3 mm) and divided (n=4) into surface treatment groups as follows: 2 control groups, consisting of airborne-particle abrasion plus primer (APP) and 10% hydrofluoric acid etching plus primer (HFP), and 3 experimental groups consisting of a nonthermal plasma (NP) application; a nonthermal plasma plus primer application (NPP); and a 10% hydrofluoric acid etching plus nonthermal plasma plus primer (HFNPP) application. Each zirconia disk was cemented to a prepolymerized resin block. After cementation, the specimens were sectioned for microtensile strength testing and for surface roughness analysis and contact angle analysis. Results were submitted to analysis of variance and Tukey tests (alpha=.05). Results. Results showed no statistically significant differences between the APP and HFNPP groups, but these 2 groups showed statistically better bonding than those of HFP, NP, and NPP. Conclusions. Airborne-particle abrasion resulted in a significant increase in surface roughness compared with the other groups. After nonthermal plasma treatment, the contact angle of the zirconia surface decreased within 48 hours. Nonthermal plasma application for surface treatment of zirconia showed no significant difference in bond strength when compared with airborne-particle abrasion. Sao Paulo State Univ, Inst Sci & Technol, Dept Restorat Dent, Grad Implantol, Sao Jose Dos Campos, Brazil Sao Paulo State Univ, Inst Sci & Technol, Dept Restorat Dent, Sao Jose Dos Campos, Brazil Sao Paulo State Univ, Inst Sci & Technol, Dept Restorat Dent, Grad Implantol, Sao Jose Dos Campos, Brazil Sao Paulo State Univ, Inst Sci & Technol, Dept Restorat Dent, Sao Jose Dos Campos, Brazil |
| Databáze: | OpenAIRE |
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