Abstract

I
On the opening page of the article, the author Kazuhito Satomura, DDS, PhD2 appeared.
The correct author and affiliation should have been:
Kazuhito Satomura, DDS, PhD1
1Department of Oral Medicine and Stomatology, Tsurumi University School of Dental Medicine, Yokohama, Japan.
The authors and editors sincerely regret this error.
