Disilicate Dental Ceramic Surface Preparation by 1070 nm Fiber Laser: Thermal and Ultrastructural Analysis
Lithium disilicate dental ceramic bonding, realized by using different resins, is strictly dependent on micro-mechanical retention and chemical adhesion. The aim of this in vitro study was to investigate the capability of a 1070 nm fiber laser for their surface treatment. Samples were irradiated by...
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MDPI AG
2018-01-01
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| author | Carlo Fornaini Federica Poli Elisabetta Merigo Nathalie Brulat-Bouchard Ahmed El Gamal Jean-Paul Rocca Stefano Selleri Annamaria Cucinotta |
| author_facet | Carlo Fornaini Federica Poli Elisabetta Merigo Nathalie Brulat-Bouchard Ahmed El Gamal Jean-Paul Rocca Stefano Selleri Annamaria Cucinotta |
| author_sort | Carlo Fornaini |
| collection | DOAJ |
| description | Lithium disilicate dental ceramic bonding, realized by using different resins, is strictly dependent on micro-mechanical retention and chemical adhesion. The aim of this in vitro study was to investigate the capability of a 1070 nm fiber laser for their surface treatment. Samples were irradiated by a pulsed fiber laser at 1070 nm with different parameters (peak power of 5, 7.5 and 10 kW, repetition rate (RR) 20 kHz, speed of 10 and 50 mm/s, and total energy density from 1.3 to 27 kW/cm2) and the thermal elevation during the experiment was recorded by a fiber Bragg grating (FBG) temperature sensor. Subsequently, the surface modifications were analyzed by optical microscope, scanning electron microscope (SEM), and energy dispersive X-ray spectroscopy (EDS). With a peak power of 5 kW, RR of 20 kHz, and speed of 50 mm/s, the microscopic observation of the irradiated surface showed increased roughness with small areas of melting and carbonization. EDS analysis revealed that, with these parameters, there are no evident differences between laser-processed samples and controls. Thermal elevation during laser irradiation ranged between 5 °C and 9 °C. A 1070 nm fiber laser can be considered as a good device to increase the adhesion of lithium disilicate ceramics when optimum parameters are considered. |
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| language | English |
| last_indexed | 2024-03-12T06:59:09Z |
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| spelling | doaj.art-85d882e9eb9e415ab255f054bcd79d3d2023-09-02T23:51:38ZengMDPI AGBioengineering2306-53542018-01-01511010.3390/bioengineering5010010bioengineering5010010Disilicate Dental Ceramic Surface Preparation by 1070 nm Fiber Laser: Thermal and Ultrastructural AnalysisCarlo Fornaini0Federica Poli1Elisabetta Merigo2Nathalie Brulat-Bouchard3Ahmed El Gamal4Jean-Paul Rocca5Stefano Selleri6Annamaria Cucinotta7Department of Engineering and Architecture, University of Parma, Parco Area delle Scienze 181/A, 43124 Parma, ItalyDepartment of Engineering and Architecture, University of Parma, Parco Area delle Scienze 181/A, 43124 Parma, ItalyMicoralis Laboratory, Faculty of Dentistry, University of Cote d’Azur, 24 Avenue des Diables Bleus, 06357 Nice, FranceMicoralis Laboratory, Faculty of Dentistry, University of Cote d’Azur, 24 Avenue des Diables Bleus, 06357 Nice, FranceMicoralis Laboratory, Faculty of Dentistry, University of Cote d’Azur, 24 Avenue des Diables Bleus, 06357 Nice, FranceMicoralis Laboratory, Faculty of Dentistry, University of Cote d’Azur, 24 Avenue des Diables Bleus, 06357 Nice, FranceDepartment of Engineering and Architecture, University of Parma, Parco Area delle Scienze 181/A, 43124 Parma, ItalyDepartment of Engineering and Architecture, University of Parma, Parco Area delle Scienze 181/A, 43124 Parma, ItalyLithium disilicate dental ceramic bonding, realized by using different resins, is strictly dependent on micro-mechanical retention and chemical adhesion. The aim of this in vitro study was to investigate the capability of a 1070 nm fiber laser for their surface treatment. Samples were irradiated by a pulsed fiber laser at 1070 nm with different parameters (peak power of 5, 7.5 and 10 kW, repetition rate (RR) 20 kHz, speed of 10 and 50 mm/s, and total energy density from 1.3 to 27 kW/cm2) and the thermal elevation during the experiment was recorded by a fiber Bragg grating (FBG) temperature sensor. Subsequently, the surface modifications were analyzed by optical microscope, scanning electron microscope (SEM), and energy dispersive X-ray spectroscopy (EDS). With a peak power of 5 kW, RR of 20 kHz, and speed of 50 mm/s, the microscopic observation of the irradiated surface showed increased roughness with small areas of melting and carbonization. EDS analysis revealed that, with these parameters, there are no evident differences between laser-processed samples and controls. Thermal elevation during laser irradiation ranged between 5 °C and 9 °C. A 1070 nm fiber laser can be considered as a good device to increase the adhesion of lithium disilicate ceramics when optimum parameters are considered.http://www.mdpi.com/2306-5354/5/1/10disilicate ceramicsfiber lasersfiber Bragg gratingenergy dispersive X-ray spectroscopy |
| spellingShingle | Carlo Fornaini Federica Poli Elisabetta Merigo Nathalie Brulat-Bouchard Ahmed El Gamal Jean-Paul Rocca Stefano Selleri Annamaria Cucinotta Disilicate Dental Ceramic Surface Preparation by 1070 nm Fiber Laser: Thermal and Ultrastructural Analysis Bioengineering disilicate ceramics fiber lasers fiber Bragg grating energy dispersive X-ray spectroscopy |
| title | Disilicate Dental Ceramic Surface Preparation by 1070 nm Fiber Laser: Thermal and Ultrastructural Analysis |
| title_full | Disilicate Dental Ceramic Surface Preparation by 1070 nm Fiber Laser: Thermal and Ultrastructural Analysis |
| title_fullStr | Disilicate Dental Ceramic Surface Preparation by 1070 nm Fiber Laser: Thermal and Ultrastructural Analysis |
| title_full_unstemmed | Disilicate Dental Ceramic Surface Preparation by 1070 nm Fiber Laser: Thermal and Ultrastructural Analysis |
| title_short | Disilicate Dental Ceramic Surface Preparation by 1070 nm Fiber Laser: Thermal and Ultrastructural Analysis |
| title_sort | disilicate dental ceramic surface preparation by 1070 nm fiber laser thermal and ultrastructural analysis |
| topic | disilicate ceramics fiber lasers fiber Bragg grating energy dispersive X-ray spectroscopy |
| url | http://www.mdpi.com/2306-5354/5/1/10 |
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