Funding for this research was provided by:
University of Damascus Dental School Postgraduate Research Budget (83054206785DEN)
Article History
Received: 6 January 2019
Accepted: 3 April 2019
First Online: 16 April 2019
Ethics approval and consent to participate
: The University of Damascus Dental School Local Research Ethics Committee Approval was obtained (UDDS-2455-15032015/SRC-4991). All participating patients signed the consent forms.
: “Not applicable”.
: The authors declare that they have no competing interests.
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