Femtosecond Laser Settings for Optimal Bracket Bonding to Zirconia

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

Femtosecond Laser Settings for Optimal Bracket Bonding to Zirconia

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Femtosecond Laser Settings for Optimal Bracket Bonding to Zirconia

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

30212 - Surgery

Projekt

<a href="/cs/project/LM2015073" target="_blank" >LM2015073: Nanomateriály a nanotechnologie pro ochranu životního prostředí a udržitelnou budoucnost</a><br>

Návaznosti

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

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

Lasers in Medical Science

ISSN

0268-8921

e-ISSN

—

Svazek periodika

34

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

8

Strana od-do

297-304

Kód UT WoS článku

000460299200008

EID výsledku v databázi Scopus

2-s2.0-85049964485