Our Team

Dr. Gloria H. Giraldo, Dentist – Director

D.D.S., General, G.P. Orthodontics


Dr. Giraldo is the owner and Director of Smile Sonrisa Dental & Orthodontics.
She graduated from the Pontificia Universidad Javeriana in Colombia in 1992 with a degree in Dentistry. She received her D.D.S. degree (Doctor in Dental Surgery) from the University of Illinois, Chicago, in 2008, and did a Residence in General Practitioner in Orthodontics in Austin, TX, in 2010, and a fellowship in Pediatric Dentistry at the Colombian Air Force Hospital in Villavicencio, Colombia from 1993 to 1994. She is a member of the American Dental Association, the Chicago Dental Society, the Hispanic Dental Association, and the Texas Dental Association. Dr. Giraldo and her husband support numerous Charitable Foundation Programs around the world: such as Smile Train, which helps poor children with cleft lips enabling them to receive surgery; Children International, a nonprofit humanitarian organization that helps children overcome poverty to become healthy, educated and self-sufficient and contributing members of society; Special Olympics Texas foundation which provides sports training and athletic competition for children and adults with intellectual disabilities, lastly Hogar Niña María a program in her native country Colombia that helps abandoned and abused children. She supports the Archdiocesan Food Bank of Bogota, which, under Father Daniel Saldarriaga’s direction, provides food to low-income families in Bogotá.
Dr. Giraldo is fluent in English and Spanish; when she is not treating her patients with the utmost care, she is spending time with her family and friends. She loves to travel to the beach and swim on sunny days during her free time.

Dr. Jane Robin Johnson – Dentist

D.D.S., General


Dr. Johnson earned her degree from the University of Texas at Austin in 1980; following this accomplishment, Dr. Johnson graduated from the University of Texas Dental Branch at Houston in 1984. With a degree in Dentistry, Dr. Johnson brings over 28 years of experience caring for children and adults. Some areas of expertise include restorations, crowns, bridges, cosmetic dentistry, and extractions. She is a Member of the American Dental Association (A.D.A.), the Texas Dental Association (T.D.A.), the Greater Houston Dental Society, and the Willowbrook Dental Study Club.
She is fluent in English and Spanish. Dr. Johnson enjoys gardening, hiking, biking, yoga, reading, photography, family, and friends in her spare time.

Dr. Beatriz Vargas Oshaben – Dentist

D.D.S., General

Dr. Vargas graduated from the University of Texas Dental Branch in Houston, Texas, with a degree in Dentistry. Dr.Vargas has more than 16 years of experience in Dentistry, working with children and adults; she is also a valued member of the American Dental Association (A.D.A.), the Texas Dental Association (T.D.A.), and the Greater Houston Dental Society.

Dr. Vargas is fluent in English and Spanish. Outside of dentistry, she enjoys cycling, running, and gardening.

Dr. Mauricio Argüello – Orthodontist

D.D.S., M.S. Orthodontist


Dr. Arguello graduated from the University of Detroit Mercy in 1977 with a degree in Dentistry and Orthodontics. He was an honored member of the Detroit Dental Community for more than 16 years. He was recognized as a dedicated mentor in his teaching responsibilities in the Department of Orthodontics at the University of Detroit Mercy. Dr. Arguello believes in providing the highest quality of dental orthodontics in the most caring and efficient manner. He is fluent in English and Spanish and is an active American Association of Orthodontists (A.A.O.) member.
Dr. Arguello continues to exercise his passion for education and teaching.

Dr. Huy Quach – Dentist

D.D.S., Sedation

Dr. Quach graduated from the University of Texas Health Science Center at the Houston Dental Branch in 2008 with a Degree in Dentistry.

He brings experience in Family Dentistry, focusing on pediatric dentistry with conscious enteral sedation. Dr. Quach is licensed in Level II Sedation, an Associate Fellow of the Academy of G.P. Orthodontics, 2012, and did an Honor Prosthodontics Clerkship from 2007 to 2008.

Dr. Quach is also fluent in English and Spanish; when he is not taking care of his patients, he enjoys spending his time off with his wife and family.

Dr. Eduardo A. Mejía – Orthodontist

D.D.S., M.S

Dr. Mejía earned his Doctorate of Dental Medicine in Mexico. He achieved his Orthodontic Certification and master’s degree at The University of Nebraska in 1984. Following these achievements, Dr. Mejía has practiced as an Orthodontist for over 30 years; he is fluent in English and Spanish and brings tremendous value to our practice. He is also an American Association of Orthodontists (A.A.O.) member.Dr.Mejía enjoys participating in many outreach programs and has volunteered to work with nonprofit programs, one of them being “Operation Smile.”

Outside of dentistry, Dr. Mejía enjoys spending time with his wife and family.

Dr. Amit Gupta – Dentist

D.D.S., General

While not a native Texan, Dr. Amit Gupta made it his home in 2021 after 20 years of living in New York. He moved to New York in 2001 to attend college at the New York Institute of Technology as a member of a 7-year BS/DO program. While there, Dr. Gupta reverted to the idea of his original career passion, dentistry. After graduation from NYIT, he continued his education at the New York University College of Dentistry to obtain his dental degree. Following his graduation from NYUCD, he joined the hospital staff at Nassau University Medical Center, a level one trauma center, where he completed his general practice residency. He specializes in dental implants, prosthetics, oral surgery, and cosmetic dentistry.
He has been volunteering with RAM-Remote Area Medical since 2012, offering dental services in rural America for those who do not have access to dental care. In his spare time, Dr. Gupta enjoys spending time with his wife and daughter. He likes cooking and traveling, and
supporting his hometown Pittsburgh sports teams.

Dr. Lan Nguyen – Dentist

D.D.S., General



Dr.  Derek Liang – Dentist

D.D.S., General-Sedation


Dr. Derek Liang graduated from the University of Texas at Austin Red McCombs Business School in 2010 with a Business Administration degree. Following that achievement, he continued his education and graduated from the University of Texas School of Dentistry in Houston in 2014 with a Doctor of Dental Surgery degree. Dr. Liang is licensed in Level II and Level III Sedation. He strives to advance his education and training through continuing education and has taken many (~50 C.E. hours/year) advanced dental courses. It has been a journey full of challenges, experiences, and enlightenment to master his skills in dentistry. Dr. Liang enjoys all phases of dentistry. He reassures his patients, children, and adults by building a professional relationship with them while making them feel at ease about getting dental treatment. Throughout the years, he has mastered his meticulous love for dentistry while still carrying easy-going energy, resulting in an excellent patient experience.

Dr. Liang enjoys watching sports, playing basketball, and flag football during his free time. He loves being active and strives to have a healthy lifestyle; he enjoys going to the gym. If he is not at the gym, he enjoys cooking or exploring the city’s newest restaurants with his family and friends.

Dr.  Jessie Carolina Camacho – Dentist

D.D.S., General


Dr. Jessie Carolina Camacho graduated from the Colombian Dental College in 2009 with a degree in General Dentist with an emphasis in Cosmetic Dentistry. She completed a Scholarship in neurofocal dentistry and biological drugs in 2012. Then in 2018, she graduated from the University of Texas Health Science Center in San Antonio with a Doctor of Dental Surgery degree.
She is a member of the American Dental Association (A.D.A.), the Texas Dental Association (T.D.A.), and The Greater Houston Dental Society.
Member of the Hispanic Dental Association.
Dr. Camacho enjoys spending time with her three children, husband, and family. She loves attending her children’s activities, including soccer games, band concerts, library, and outdoor activities. She is fluent in Spanish and English.