Femtosecond laser settings for optimal bracket bonding to zirconia
dc.contributor.author | García-Sanz, Verónica | |
dc.contributor.author | Paredes-Gallardo, Vanessa | |
dc.contributor.author | Bellot-Arcís, Carlos | |
dc.contributor.author | Martínez-León, Lluís | |
dc.contributor.author | Torres-Mendieta, Rafael | |
dc.contributor.author | Montero, Javier | |
dc.contributor.author | Albaladejo, Alberto | |
dc.date.accessioned | 2019-08-22T07:44:11Z | |
dc.date.available | 2019-08-22T07:44:11Z | |
dc.date.issued | 2019-03 | |
dc.description.abstract | Bonding orthodontic brackets to ceramic materials is a challenging procedure; femtosecond (FS) laser conditioning could provide improved results, but the ideal settings for effective bracket-zirconia bonding have never been established. This study aimed to analyze the differences in surface roughness and shear bond strength (SBS) produced by different femtosecond laser settings and establish a protocol to prepare zirconia surfaces for optimal adhesion to metal orthodontic brackets. One hundred eighty zirconia samples were assigned to six groups according to surface treatment: (1) control; (2) air-particle abrasion (APA); (3) FS laser irradiation (300 mW output power, 60 mu m inter-groove distance); (4) FS laser irradiation (200 mW, 100 mu m); (5) FS laser irradiation (40 mW, 60 mu m); and (6) FS laser irradiation (200 mW, 60 mu m). Surface roughness was measured. Orthodontic brackets were bonded to the zirconia specimens, and SBS was measured. SBS in groups 3 and 6 was significantly higher than the other groups (5.92 +/- 1.12 MPa and 5.68 +/- 0.94 MPa). No significant differences were found between groups 1, 2, 4, and 5 (3.87 +/- 0.77 MPa, 4.25 +/- 0.51 MPa, 3.74 +/- 0.10 MPa, and 3.91 +/- 0.53 MPa). Surface roughness was significantly greater for FS laser than for control and APA groups (p = 1.28 x 10(-8)). FS laser at 200 mW, 60 mu m can be recommended as the ideal settings for treating zirconia surfaces, producing good SBS and more economical energy use. | cs |
dc.format.extent | 8 stran | cs |
dc.identifier.WebofScienceResearcherID | N-7426-2018 Torres-Mendieta, Rafael | |
dc.identifier.doi | 10.1007/s10103-018-2589-3 | |
dc.identifier.uri | https://dspace.tul.cz/handle/15240/153230 | |
dc.identifier.uri | https://link.springer.com/article/10.1007%2Fs10103-018-2589-3 | |
dc.language.iso | cs | cs |
dc.relation.ispartof | LASERS IN MEDICAL SCIENCE | |
dc.subject | Femtosecond laser | cs |
dc.subject | Dental ceramic | cs |
dc.subject | Orthodontic brackets | cs |
dc.subject | Pulsed laser | cs |
dc.subject | Adhesion | cs |
dc.subject | Surface roughness | cs |
dc.title | Femtosecond laser settings for optimal bracket bonding to zirconia | cs |
local.citation.epage | 304 | |
local.citation.spage | 297 | |
local.relation.issue | 2 | |
local.relation.volume | 34 |
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