Welcome to Dentistry 101! I'm Russ Taichman. And I'm Rogerio Castilho. Some years ago, my brother, a physician, drew a slide to illustrate what dentistry is all about. He called it, "All you ever want to know about dentistry but were afraid to ask." For example, here's the cusp. Here's the crown, the gingiva, the root, and the bone. This is the part you see, and this is the part you do not see, except in disease, of course. So, this is a simple representation of what dentistry is all about. However... It's so much more than that. Dentistry 101 will give you a real-world view about the profession. This course will teach you all about the dental specialties and what it can be like to be a dentist. Dentistry is an ever-growing and exciting field. It's always evolving and continuing to innovate. And you can be a part of that evolution by contributing new research to any of the areas we'll be exploring in this course. We encourage you to see your path through a dental education and envision the career that's best suited for you. Here, you will gain your skills and knowledge to be a successful practitioner. And it's here where you're going to meet your peers, peers with whom you can share your ideas, and discuss new and exciting advancements. You will be able to work with new technologies and see the impact that they can have on dentistry. After you've completed the course, you'll have a deeper understanding of what dentistry is all about. This career is exciting and fulfilling. It has been exciting for me and it can be exciting for you. So, we welcome you to: Dentistry 101.