Ramalho, K. M.
Eduardo, C. P.
Heussen, N.
Rocha, R. G.
Meyer-Lueckel, H.
Lampert, F.
Apel, C.
Esteves-Oliveira, Marcella
Funding for this research was provided by:
Conselho Nacional de Desenvolvimento Científico e Tecnológico ((#305574/2008-6)
START Program of the Medical Faculty of the RWTH University (#AZ43/09)
Forschungsgemeinschaft Dental (#360303)
Article History
Received: 7 September 2017
Accepted: 20 September 2018
First Online: 28 September 2018
Compliance with ethical standards
:
: The authors declare they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. The study was approved by Ethical Committee of Medical School of the RWTH Aachen University (#EK 134/09)
: Informed consent was obtained from all individual participants included in the study.