The evaluation of the effect of carbon dioxide laser radiation on dentine tissue

• Autorzy: Ryniewicz J. , Ryniewicz W. I. , Loster J. E. , Wieczorek A. , Pytko-Polończyk J.

Identyfikatory

DOI

10.5277/ABB-00623-2016-03

• Języki publikacji: EN

Abstrakty

EN

Purpose: Tissue constitution and construction determine the scope of the structural changes that develop under laser light. The aim of this study was to analyze the effects of carbon dioxide (CO2) laser light on the structure and elemental composition of dentine. Methods: The evaluation was conducted on samples from extracted teeth. The surface of the dentine was exposed to the radiation from a CTL 1401 CO2 laser (Centre of Laser Technology, Poland). The radiation and frequency parameters were as follows: group I with 5 W and 1 Hz, group II with 10 W and 1 Hz, group III with 5 W and 5 Hz, and group IV with 10 W and 5 Hz. The altered dentine structure was macroscopically and microscopically evaluated using a Nova NanoSEM 200 Scanning Electron Microscope (FEI Europe) with integrated microanalysis X-ray system for elemental analysis in points. Results: There were significant differences between groups in the macro- and microstructure of laser defects. Conclusions: CO2 laser radiation causes irreversible, destructive changes in dentine. The structural dentine lesions developed under the influence of the CO2 laser radiation may hinder proper adhesion of bonding systems with the damaged tissue. Laser defects in the structure should be treated like defects of noncarious origin requiring preparation and filling with composite materials in accordance with the procedures.

Słowa kluczowe

EN

microstructure; scanning electron microscope; SEM; dentine; carbon dioxide laser

PL

mikrostruktura; skaningowy mikroskop elektronowy; SEM; zębina

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Acta of Bioengineering and Biomechanics
• Rocznik: 2017
• Tom: Vol. 19, no. 1
• Strony: 181--188
• Opis fizyczny: Bibliogr. 23 poz., rys., tab., wykr.

Twórcy

autor

Ryniewicz J.

• Department of Integrated Dentistry, Institute of Dentistry at Jagiellonian University in Kraków, Kraków, Poland

autor

Ryniewicz W. I.

• Department of Dental Prosthetics, Institute of Dentistry at Jagiellonian University in Kraków, Kraków, Poland

autor

Loster J. E.

• Department of Dental Prosthetics, Institute of Dentistry at Jagiellonian University in Kraków, Kraków, Poland

autor

Wieczorek A.

• Department of Dental Prosthetics, Institute of Dentistry at Jagiellonian University in Kraków, Kraków, Poland

autor

Pytko-Polończyk J.

• Department of Integrated Dentistry, Institute of Dentistry at Jagiellonian University in Kraków, Kraków, Poland

Bibliografia

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Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).