About Dr. Marin

Oscar Marin, DDS, is a restorative and cosmetic dentist at Smile Design Advanced Dentistry in Brea, California. Dr. Marin is passionate about making an impact on people’s lives through exceptional smile care, leading them to a more healthy and happy lifestyle. 

Dr. Marin attended the Pontifical Xavierian University School of Dentistry in Bogotá, Columbia. He has specialized training in orthodontics, temporomandibular joint (TMJ) management, and dental implants. Dr. Marin is also a certified Invisalign® provider and has over two decades of experience providing cosmetic, general, and restorative dentistry for children and adults. 

At a very young age, Dr. Marin developed an interest in the field of dentistry. Once he was old enough, he began working in the lab at his father’s dental practice. There, he saw the meaningful interactions that his father had with his patients and the positive effect he had on their health and lives. Those moments made an impression on Dr. Marin, motivating him to follow his father’s footsteps to become a dentist. 

Just like his father, Dr. Marin hopes to build trusting relationships with his patients at Smile Design Advanced Dentistry. To develop the best patient experiences, he holds professional memberships in the American Dental Association, California Dental Association, and the San Gabriel Valley Dental Society. 

Outside the office, Dr. Marin and his wife Diana enjoy family time with their two daughters, Valentina and Nicole. Dr. Marin also loves running, mountain biking and hiking, and playing the guitar. He is a podcaster as well, and spends his free time educating patients through his podcast “Marin Dental Media.”