7th Floor, Icon Plaza Condominium 

26th Ave., Bonifacio Global City, Taguig

Metro Manila, Philippines

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Our Team

Lennie Buhain, D.M.D.


Dr. Buhain is the owner and principal dentist of the Buhain Dental Center, established in 1997 with locations in both Quezon City and Ortigas. With a reputation for excellence, she has developed specialties in Endodontics, Esthetics, Orthodontics, Implants, Temporomandibular Disorders and Orofacial Pain. 


A graduate of the Centro Escolar University, she launched her career as an associate dentist, working in both New York and Manila. 


Dedicated to her professional growth, Dr. Buhain continues to pursue additional training including courses with NYU, UCLA, UP-Manila, Charles Tweed International, Dawson Academy, and endodontic specialists. 


Dr. Buhain is a devoted mother and wife who enjoys traveling and spending time with her family.

Cara Tinsay Gonzales, D.M.D.


Dr. Gonzalez is passionate about Zentistry: a brand that fulfills her dream of integrating dentistry with her love of understanding the human mind and behavior. 


Her educational background makes her uniquely suited to the role: graduating Cum Laude with a degree in Psychology from the University of the Philippines as well as earning a Doctor of Dental Medicine degree from the University of the East.


After discovering Zentistry during an internship with Dr. Sonny Torres Oliva in 2017, she soon joined the organization as its Chief Compliance Officer and now, Chief Operating Officer. She strives to make Zentistry the leader in dental experiences.


Dr. Gonzalez believes strongly in work/life balance. Outside of the clinic, she is an indoor cycling instructor and loves to travel with family and friends.  

Charlotte Carreon, D.M.D.


Dr. Charlotte Carreon comes to Zentistry with a wide range of experience in the dental industry. 


Upon receiving her Doctor in Dental Medicine degree from the University of the Philippines College of Dentistry in 2002, she launched her career as an associate dentist in Manila. She then relocated to Singapore where she trained extensively in oromaxillofacial surgery. 


Dr. Carreon has researched and published articles on implant dentistry for the Korean Dental Association and FDI World Dental Federation. 


Most recently, she worked as a Business Development/Professional Services Manager for dental supply company Ivoclar Vivadent.


A certified foodie, art enthusiast and a travel aficionado, Dr. Carreon enjoys exploring different cuisines, painting with watercolors and travel photography.

Jean Louise Laguitao, D.M.D.


Dr. Laguitao is a graduate of University of the Philippines College of Dentistry. Since her graduation in 2007, she has worked in various dental clinics around Manila.


She is passionate about helping Overseas Filipino Workers, providing them dental clearance before they are deployed abroad.


She also serves as a dental laboratory consultant with expertise in Quality Assurance. 


During her time off, you can find Dr. Laguitao in the kitchen replicating dishes she loves. She also likes exploring new places and reading novels in solitude.

Arlene Chiu, D.M.D.


Dr. Chiu is currently a dentist at the Buhain Dental Center where she specializes in restorative and general dentistry. 


She earned her Doctor of Dental Medicine degree from Centro Escolar University in 1993 and pursued postgraduate studies at Mona Lisa Orthodontia Fraterna in Hong Kong. 


After a decade in partnership at Goldent, Inc., Dr. Chiu opened her own practice, Smile Channel Dental Clinic in BGC from 2005 to 2014. 


When she is not practicing dentistry, the multi-talented Dr. Chiu is also a financial advisor. She loves the arts and collects anything that has elephants on them. She likes to stay active through scuba diving, zumba, boxing, and pilates.

Sach Aoki, D.M.D.


Dr. Aoki is currently an associate dentist at the Buhain Dental Center in Manila. She earned her Doctor in Dental Medicine degree from the University of the East in 2018 and has also completed preceptorships in Endodontics and Biomimetic Dentistry. 


Known for her attention to detail and caring nature, she aims to develop her skills in Esthetics, Periodontics, Pediatrics and Orthodontics.


As an advocate for a healthy and well-balanced life, Dr. Aoki enjoys open water swimming, music festivals and cooking healthy recipes. She also hosts annual dental missions in remote areas of the Philippines to give back to her community.

Trina Tiangco, D.M.D.


Dr. Tiangco is a seasoned dentist with over 20 years of experience in standard dental care, surgical procedures and orthodontic treatment. 


A graduate of the University of the Philippines College of Dentistry, she is devoted to improving her craft through continuing education. This includes the Pioneer Orthodontic Study Group, the Enhancement Course in Oral Surgery, and the University of the Philippines Comprehensive, Restorative, and Aesthetic Dentistry Course, among others.


She is also passionate about educating patients on the importance of proper dental hygiene. 


In her free time, Dr. Tiangco enjoys extreme sports such as scuba diving and canyoneering.

Chiara Echieverri, R.D.H.

Dental Hygienist

An L.A. native, Chiara graduated from the University of Southern California with a degree in Dental Hygiene in 2008. Strongly influenced by California culture and her love of dentistry, she spent 6 years working as a dental hygienist in her home state.  

After relocating to the Philippines in 2014, and a period of career exploration, she returns to her dental hygiene roots with Zentistry. 

In her spare time, you can find Chiara pursuing her interests of baking, traveling and golf. She also lends her time to charities supporting cleft palate repair and rehabilitation.

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