British Journal of Research (BJR)
British Journal of Research is an open access peer reviewed and bimonthly published research journal that publishes articles in the field of Science. It is an international journal to encourage research publication to research scholars, academicians, professionals and students engaged in their respective field. The journal also provides an international forum to disseminate their knowledge.
Our mission is to advance research by working to develop and maintain competence, ethics and integrity and the highest professional standards in the specialty for the benefit of the public. The faculty seeks, through its activities, to bring about an improvement in research of the public.
BJR serves an intellectual audience that is interested in the latest research coming out of universities and industries around the world. The journal publishes research developments and disseminates them to an international audience.
The journal welcomes publications of high quality papers. Original research papers, reviews and high quality technical notes are invited for publications.
SCOPE OF JOURNAL
Biological sciences, Biodiversity, Biotechnology, Agricultural sciences, Chemistry, Environmental sciences, Physics, Geology, Social sciences, Management sciences & Marine Science.
Our mission is to advance research by working to develop and maintain competence, ethics and integrity and the highest professional standards in the specialty for the benefit of the public. The faculty seeks, through its activities, to bring about an improvement in research of the public.
BJR serves an intellectual audience that is interested in the latest research coming out of universities and industries around the world. The journal publishes research developments and disseminates them to an international audience.
The journal welcomes publications of high quality papers. Original research papers, reviews and high quality technical notes are invited for publications.
SCOPE OF JOURNAL
Biological sciences, Biodiversity, Biotechnology, Agricultural sciences, Chemistry, Environmental sciences, Physics, Geology, Social sciences, Management sciences & Marine Science.
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Papers by British Journal of Research (BJR)
Materials and Methods: The materials used were conventional feldspathic porcelain Vitadur N and Vita In-Ceram Alumina. The hardness was measured using Vickers microhardness tester. SEM and X-ray diffraction analysis of the surface structure were conducted to detect the surface changes.
Results: The hardness of the porcelain specimens was not significantly increased with 2 watt CO2 laser and 1.5 Joule/cm2 excimer laser glazing. Also, the hardness of in-ceram alumina was not significantly increased with 2 and 10 watt CO2 laser glazing. On the contrary, the hardness of porcelain was significantly increased with 10 watt CO2 and 6.2 Joule/cm2 excimer lasers, as well as the in-ceram alumina was significantly increased with excimer laser glazing. Scanning electron microscopy declared an increase in homogeneity and smoothness of laser glazed specimens especially those glazed with higher power setting of CO2 laser and higher energy density of excimer laser when compared to the conventionally glazed specimens. X-ray diffraction charts of the control and laser glazed specimens were nearly identical, indicating that laser glazing had no effect on their internal microstructure.
Conclusion: It was concluded that, laser glazing improves the surface hardness and smoothness of ceramic surfaces without affecting their internal structures.
Clinical relevance: Laser technology can be used for glazing of ceramic restorations to improve its properties.
Materials and Methods: The materials used were conventional feldspathic porcelain Vitadur N and Vita In-Ceram Alumina. The hardness was measured using Vickers microhardness tester. SEM and X-ray diffraction analysis of the surface structure were conducted to detect the surface changes.
Results: The hardness of the porcelain specimens was not significantly increased with 2 watt CO2 laser and 1.5 Joule/cm2 excimer laser glazing. Also, the hardness of in-ceram alumina was not significantly increased with 2 and 10 watt CO2 laser glazing. On the contrary, the hardness of porcelain was significantly increased with 10 watt CO2 and 6.2 Joule/cm2 excimer lasers, as well as the in-ceram alumina was significantly increased with excimer laser glazing. Scanning electron microscopy declared an increase in homogeneity and smoothness of laser glazed specimens especially those glazed with higher power setting of CO2 laser and higher energy density of excimer laser when compared to the conventionally glazed specimens. X-ray diffraction charts of the control and laser glazed specimens were nearly identical, indicating that laser glazing had no effect on their internal microstructure.
Conclusion: It was concluded that, laser glazing improves the surface hardness and smoothness of ceramic surfaces without affecting their internal structures.
Clinical relevance: Laser technology can be used for glazing of ceramic restorations to improve its properties.