Dr. David Chan is a family dentist serving the St Catharines Areas & Niagara Region. Our office is located in St. Catharines, Ontario (Medical Plaza). We have a friendly atmosphere and have over 20 years experience. New patients welcome! Emergencies accepted! Saturday appointments available! We speak both English and Chinese. Our general dental services include: preventative treatment for gums and teeth, restorative and cosmetic dentistry, root canal therapy, crowns and bridges, extraction, partial and complete dentures, solutions for seniors with difficulty wearing complete dentures.