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In the CO2 laser group, the smear layer was also removed; however, there were no significant differences between the CO2 laser and control groups in fibrin clot formation and blood cell attachment. Conclusion The application of the ErYAG laser to the root dentin appears to result in the formation of a suitable surface for fibrin clot formation and blood cell attachment. Further clinical studies are necessary to support these results. Copyright © 2020 J Lasers Med Sci.Introduction Melasma is one of the most common skin pigmentation disorders, which m

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ct tracing apps with high levels of compliance with standards of data privacy tend to fulfill public health interests to a limited extent. Simultaneously, digital technologies with a lower level of data privacy protection allow for the collection of more data. Overall, this review shows that a consistent number of apps appear to comply with standards of data privacy, while their usefulness from a public health perspective can still be maximized. Contact tracing apps with high levels of compliance with standards of data privacy tend t