HappyTeeth Children's Dentistry & Orthodontics
5060 Sunrise Blvd
Suite C

Fair Oaks, CA 95628
Call Us Today! (916) 910-0771
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Meet Our Doctors

Teresa De Guzman, DDS

Teresa De Guzman, DDS

Dr. Teresa De Guzman has been practicing excellent and gentle dentistry in the Sacramento, Carmichael and Fair Oaks community since 1994. She received her dental education and training and obtained her Doctor of Dental Medicine degree from Centro Escolar University College of Dentistry. Dr. De Guzman keeps herself updated with the most advanced techniques in dentistry by taking dental courses and seminars in prestigious institutions like the University of California in San Francisco, the World Clinical Laser Institute, and the Academy of General Dentistry.

Dr. De Guzman started her own practice in Carmichael in May 1999. She developed excellent rapport with patients in the community and her patient base expanded tremendously. This inspired her to open a second dental office in Fair Oaks in February of 2005.

She is a member of the American Dental Association, California Dental Association, Sacramento District Dental Society, TriCounty Fil-Am Dental Society and the National Association of Filipino Dentists in America.

Dr. De Guzman is a Premier Preferred Provider of Invisalign. This is in recognition of her excellent work in providing Invisalign orthodontic treatment to hundreds of patients. She is also a Certified Zoom! Advanced Power Chairside Whitening System Provider. Dr. De Guzman is not only a very gentle and compassionate dentist to her patients, she is very generous and has always shared her blessings by providing free dental services in the Sacramento community and in remote rural areas in the Philippines.

Michael Tuan, DDS

Michael Tuan, DDS

Personal Biography

Dr. Tuan has been practicing dentistry since 2013. His interests include hiking, golfing, and tennis, as well as rooting for the Seattle Mariners and the Seattle Seahawks. In his spare time, he enjoys watching movies, playing video games, and being with friends.


New York University College of Dentistry; New York, NY


Dentistry, The Ohio State University; Columbus, OH


Nationwide Children’s Hospital, The Ohio State University; Columbus, OH


“A child’s first dental visit can cause anxiety for patient and parent alike. I strive to make each dental visit a positive experience by providing a safe, calm, and gentle treatment environment while delivering exceptional care with the ultimate goal of alleviating dental fears and setting a child up for a lifetime of good oral health.”

Personal Favorites

Dr. Tuan’s favorite book is The Phantom Tollbooth, his favorite movie is Office Space, and his favorite TV show is Star Trek: The Next Generation.

Professional Association

American Academy of Pediatric Dentistry, American Dental Association, Omicron Kappa Upsilon National Dental Honor Society, Phi Kappa Phi honor society

Volunteer Experience

Give Kids A Smile, Special Olympics


Dr. Alexander and Susan Goldenberg award for excellence in pediatric dentistry at New York University College of Dentistry


Honors in pediatric dentistry at New York University College of Dentistry

Office Hours

Mon: 8am - 6pm Tue: 8am - 6pm Wed: 8am - 6pm Thu: 8am - 6pm Fri: 8am - 6pm Sat: 8am - 6pm Sun: Closed