Corresponding Author

Stephen J. Chu DMD, MSD, CDT

Ashman Department of Periodontology and Implant Dentistry, Department of Prosthodontics, New York University College of Dentistry, New York, New York, USA

Correspondence

Stephen J. Chu, 150 East 58th Street, Ste. 3200, New York, NY 10155, USA.

Email: schudmd@gmail.com