Ethics committee approval 

Submission of a manuscript to Ain Shams Journal of Dental Science implies that all authors have read and agreed to its content and that any experimental research that is reported in the manuscript has been performed with the approval of an appropriate ethics committee. Research carried out on humans must be in compliance with the Helsinki Declaration. A statement to this effect should appear in the Methods section, including the name of the body which gave approval. Informed consent should also be documented. Similarly, for experiments involving animals you must state the care of animal and licensing guidelines under which the study was performed. If ethics clearance was not necessary, or if there was any deviation from these standard ethical requests, please state why it was not required. Please note that the editors may ask you to provide evidence of ethical approval. If you have approval from a National Drug Agency (or similar) please state this and provide details, this can be particularly useful when discussing the use of unlicensed drugs. Manuscripts may be rejected if the editorial office considers that the research has not been carried out within an ethical framework.

Declaration of interest 

Ain Shams Journal of Dental Science requires authors to state all possible conflicts of interest, including financial and other relationships on a separate line in the Acknowledgements section of the paper. If you are sure that there is no conflict of interest, please state so. Remember that sources of funding should also be acknowledged in your paper on a separate line in the Acknowledgements section.

Submission declaration and verification 

Submission of an article implies that the work described has not been published previously (except in the form of an abstract, a published lecture or academic thesis), that it is not under consideration for publication elsewhere, that its publication is approved by all authors and tacitly or explicitly by the responsible authorities where the work was carried out, and that, if accepted, it will not be published elsewhere in the same form, in English or in any other language, including electronically without the written consent of the copyright-holder. To verify originality, your article may be checked by the originality detection service Cross ref Similarity Check.