Doctor. Dr. Kenneth Chan & Dr. Leonard Chan of Dundas Street Dentistry welcome new patients and offer emergency care. Conveniently located in the heart of Waterdown with ample free parking. We are a father & son team of dentists who take pride in offering you a relaxing dental experience. All procedures are fully explained to assist our patients in feeling comfortable while in the clinic. Let us help you achieve your winning smile! From cleanings to full dental restorations- we look forward to meeting you and discussing your particular dental needs.