What causes yellowing of teeth?

Dr. Susan R. Pan, DDS, is a highly qualified dentist with a long-standing engagement in the field since 1986. She was a recipient of the Dr. Gerald Z Wright Award for graduating first in her class at Schulich School of Medicine & Dentistry, University of Western Ontario. Additionally, she worked as a clinical instructor for new dentists at the University of Western Ontario’s School of Dentistry and graduated from the Dental School of Sun Yat-Sen University of Medical Sciences. Dr. Pan has received recognition for her exceptional work, as she was consecutively awarded the Diamond Winner for the Readers’ Choice of their Favorite Dentist by the Hamilton Spectator in 2014 and 2015, and was nominated for the same title multiple times in 2007, 2010, 2014, 2015, 2016, and 2017.