Femtosecond Laser Settings for Optimal Bracket Bonding to Zirconia

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24620%2F19%3A00005488" target="_blank" >RIV/46747885:24620/19:00005488 - isvavai.cz</a>

Result on the web

<a href="https://link.springer.com/article/10.1007/s10103-018-2589-3" target="_blank" >https://link.springer.com/article/10.1007/s10103-018-2589-3</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10103-018-2589-3" target="_blank" >10.1007/s10103-018-2589-3</a>

Result language

angličtina

Original language name

Femtosecond Laser Settings for Optimal Bracket Bonding to Zirconia

Original language description

Objective: This study aimed to: analyze the differences in surface roughness and shear bond strength (SBS) produced by different femtosecond laser settings and determine the ideal settings of the FS laser to prepare zirconia surfaces for an optimal adhesion to orthodontic brackets. Materials and Methods: One hundred and eighty zirconia samples were assigned to six groups according to the surface treatment: Group 1- control; Group 2- air-particle abrasion (APA) with Al2O3; Group 3- FS laser irradiation (300mW mean output power and 60μm inter-groove distance); Group 4- FS laser irradiation (200mW, 100μm), Group 5- FS laser irradiation (40mW, 60μm) and Group 6- FS laser irradiation (200mW, 60μm). Surface roughness was measured using a stylus profilometer. Orthodontic brackets were bonded to the treated zirconia specimens. SBS was measured using a universal testing machine. Bond failure type was analyzed and Scanning Electron Microscopy was used to qualitatively assess the surfaces. The data were analyzed statistically. Results: SBS in groups 3 and 6 was significantly higher (5.92±1.12 MPa and 5.68±0.94 MPa) than the other groups. No significant differences were found between groups 1, 2, 4 and 5. Surface roughness values were significantly greater for FS laser groups than for control and APA groups (p<0.001). Conclusions: Femtosecond laser irradiation at 300mW and 200mW output power, 60μm inter-groove distance, provided better adhesion between the surfaces. FS laser at 200mW, 60 μm can be recommended as the ideal settings for treating zirconia surfaces, producing good shear bond strength and a more economical use of energy.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

30212 - Surgery

Project

<a href="/en/project/LM2015073" target="_blank" >LM2015073: Nanomaterials and Nanotechnologies for Environment Protection and Sustainable Future</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2019

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Lasers in Medical Science

ISSN

0268-8921

e-ISSN

—

Volume of the periodical

34

Issue of the periodical within the volume

2

Country of publishing house

GB - UNITED KINGDOM

Number of pages

8

Pages from-to

297-304

UT code for WoS article

000460299200008

EID of the result in the Scopus database

2-s2.0-85049964485