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Meet Our Doctors

General Dentist
Dr. Christine Chung
Dr. Christine Chung completed her undergraduate studies at U.C.I. in 1992. She went on to Loma Linda University to earn her Doctorate degree in 1996. Dr. Chung is a member of the American Dental Association, Orange County Dental Society, and the California Dental Association. Dr. Chung constantly strives to improve and update her knowledge in the field of dentistry and related studies. She has always strengthened her understanding of diagnosis and treatment by reading research and attending post graduate seminars on such subjects as periodontal surgery, implants, esthetic courses, and endodontics. Her love of dentistry and genuine concern for others are two qualities that impress those who know her well. When she is not working, she enjoys tennis, hiking, playing piano, golf, traveling, singing, and meeting new people.
General Dentist
Dr. Evan Georgieff
Dr. Evan Georgieff completed his study of dentistry at the University of the Pacific in San Francisco in 1990. Dr Evan is extremely talented and has an amazing ability to perform his dental treatments with virtually no pain. He is certified to perform oral surgery, dental implants, and also practiced while in the U.S. Navy. 
Oral Surgeon
Dr. Apel Keuroghlian
Dr. Apel Keuroghlian is an Oral and Maxillofacial Surgeon that graduated from UCLA. His career began with a biomedical/biochemical engineering degree from the University of Southern California, where he graduated among the top of his class. Throughout his undergraduate education in engineering, Dr. Keuroghlian researched the effects of the different surface characteristics of implants and their integration with bone.

He later decided to further his education by obtaining a dental degree from USC. While at the USC School of Dentistry, Dr. Keuroghlian received several endowed scholarships for academics/research including the California Dental Association research scholarship and academic scholarship as well as the Class of 1964 endowed scholarship. He once again graduated amongst the top of his class. Dr. Keuroghlian truly enjoyed the surgical aspect of dentistry while in dental school and decided to further his education in Oral and Maxillofacial Surgery at UCLA which includes a Medical Degree from UCLA, as well as an internship certificate in general surgery.

In addition to practicing at Total Family Dental Group in the City of Torrance, he currently holds a faculty position at UCLA. Dr. Keuroghlian truly enjoys what he does and is committed to enhancing patient care by integrating his engineering, dental, surgical skills, and education. He is dedicated to patient care, and looks forward to continuing research in the future.

Dr. Keuroghlian is fluent in both English and Armenian. When not working, Dr. Keuroghlian enjoys travelling, skiing, playing basketball, or just hanging out with his friends.

Dr. Elizabeth Hoang
Gratuate of Tufts Universary School of Medicine

Graduate of Columbia Universary School of Dental and Oral Surgery of Periodontal

Surgery and Prosthedontic Implant Certificate

General Dentist
Dr. Leon Ren
For over 20 years I have dedicated my practice to creating profound improvement in the quality of my client’s lives through Cosmetic Dentistry. To me, this means making a lifelong commitment to each of my clients’ happiness and wellbeing.

My conviction for fine cosmetic dentistry comes from a unique passion I share with few others in my field. I discovered my artistic talent at a very young age and have pursued the study of art ever since. Being able to combine my natural talent for painting and fine cosmetic dentistry allows me the privilege of truly enjoying my profession. For this reason, cosmetic dentistry fulfills an important component of my life’s purpose. Throughout my 20 year career in Cosmetic dentistry, I have created thousands of amazing smiles for celebrities, athletes and ordinary people who strive to improve their lives. Knowing that my artistic talent applied in cosmetic dentistry can change people’s lives is the most rewarding experience. From this inspiration, I have formed a charity foundation “Life is Beautiful Charitable foundation” to use my professional skills to help victims of abuse and hardship transform their lives through cosmetic dentistry. In addition to cosmetic dentistry, I have made a personal commitment to continuously strive for excellence in the areas of health, spirituality, and mind within my own life. I aim to help my client create the same level of excellence in theirs.

Graduated from Loma Linda School of Dentistry with Honor in 1992

Extensive training in Cosmetic Dentistry at the prestigious Las Vegas Institute

Member of American Academy of Cosmetic Dentistry

Dr. George Guise
Dr. Guise earned his Bachelor’s degree in Biology from Kansas State University in 1991. From there, he attended Tufts School of Dental Medicine, Boston, MA where he earned his Doctor of Dental Medicine degree in 1995. After 11 years as a General Dentist, Dr. Guise sought specialty training in Endodontics. His Endodontics certificate and Master’s degree were received from the Bureau of Medicine and Surgery and George Washington University, respectively. He is a published author in the Journal of Endodontics. Dr. Guise is married with 3 sons.
Dr. Rabin Marfatia
Dr. Rabin Marfatia is our Pediatric Dentist, specializing in the dental care of infants to teens. Dr. Marfatia completed his undergraduate studies Molecular and Cell Biology from the University of California Berkeley followed by his doctorate degree in dentistry from the University of Southern California, School Of Dentistry in 2001.

Inspired to help young children, Dr. Marfatia went on to further his training by completing a residency in Pediatric Dentistry from the Columbia University/New York Presbyterian Hospital; one of the top Children’s Hospitals in the country.

Dr. Marfatia is board certified Pediatric Dentist, member of the California Society of Pediatric Dentists, American Academy of Pediatric Dentist, and American Board of Pediatric Dentist.

Dr. Marfatia’s goal is to provide dental care for toddlers to adolescents and make their experience at our dental office as comforting, educational, and fun as possible. He has extensive experience in behavior management, oral sedation, and IV sedation to help provide a positive experience for your child.

Christian Mazilu, RDH
Christian Mazilu graduate from San Joaquin Valley College private Dental Hygiene school with honors in 2007. I enjoy working with people and seek to treat my patients the way I want to be treated. My goal is to provide the highest quality standard of care and look to advance in the science of dental hygiene. As a Christian God is the most significant part of my life. I am also family oriented, love to spend time with my wife and baby. I also enjoy snow boarding, golf and tennis.
Erik Brauer, RDH
Erik Brauer comes from a long line of dentists where he is proud of his dental lineage. Erik fulfilled his undergraduate studies at the University of Oregon and finished up his dental hygiene degree at Concorde College here in Orange County. Erik lived back east for a few years, but he missed the sunshine and the wonderful people here. So he decided to move back and is so glad to be home. As a hygienist, Erik’s role in the practice is one that provides excellent preventative and periodontal care for all his patients. Erik’s enthusiasm and caring nature, as well as his dental hygiene skills are what makes him a fantastic dental hygienist and he is a pretty good guy too.
General Dentist
Dr. Anh Nguyen
Dr. Anh Nguyen is another one of our practicing doctors here at 7 Day Dental and she is a University of California, Irvine graduate. She attended the University of the Pacific School of Dentistry and graduated Doctor of Dental Surgery in 1997. For the past twelve years Dr Nguyen has lived in the county of Sacramento and recently relocated to Orange County to be closer to her family. Dr Nguyen strongly believes in comprehensive care and preventative care with an emphasis in early childhood dental disease intervention. In February 1997, due to lack of access of dental care for underserved children six years and under across the state, Dr Nguyen has participated in an extensive training sponsored by the California Dental Association Foundation and California Society of Pediatric Dentistry through a Pediatric Oral Health Access Program. She enjoys working with the children and share with parents the ways to improve their oral health. Dr Nguyen looks forward to reconnect with the new community she is living in and would like to participate and volunteer for children in need. She enjoys spending quality time with family and friends, exploring new trails in her new community, and participating in her son’s school activities.
Dan-Huong, RDH
Coming Soon…
General Dentist
Dr. Alberto Gallastegui
Picture and Bio coming soon…