1. Department of Preventive Dental Science, College of Dentistry King Saud bin Abdul‐Aziz University for Health Sciences Riyadh Saudi Arabia
2. King Abdullah International Medical Research Center National Guard Health Affairs Riyadh Saudi Arabia
3. Department of Oral Health Sciences, Faculty of Dentistry The University of British Columbia Vancouver British Columbia Canada
4. Department of Oral Biological and Medical Sciences, Faculty of Dentistry The University of British Columbia Vancouver British Columbia Canada