Kavvadia, K.
Seremidi, K.
Reppa, C.
Makou, M.
Lagouvardos, P.
Article History
Received: 24 June 2017
Accepted: 10 January 2018
First Online: 13 March 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: The study has been performed in accordance with the ethical standards as laid down in the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards. Approval was obtained from the ethics committee of the Dental School of the University of Athens (no. 111, 22/01/2009).
: Informed consent was obtained from all individual participants included in the study.