Dr. Jaiarj was born and raised in Bangkok, Thailand. She attended Chulalongkorn University dental school where she earned her Doctor of Dental Surgery degree in 1997. After practicing for three years at a hospital in an underserved area and private dental offices in Thailand, she came to the United States for her dental specialty training. She received a certificate of graduate study in pediatric dentistry from Boston University, Boston, Massachusetts in 2002 and was awarded a resident research award upon her graduation. She then continued her fellowship program in Pediatric Dentistry at the University of Maryland and obtained her Maryland state dental license. During the pediatric dental fellowship program, she not only served as a part-time visiting clinical instructor at University of Maryland, she also provided dental care at the Carroll County Health Department Dental Clinic. She has joined smiles4children and worked as a full-time pediatric dentist since September 2006.

Dr. Jaiarj is currently a Diplomate of the American Board of Pediatric Dentistry. Dr. Jaiarj is a member of several professional organizations, including a member of the American Academy of Pediatric Dentistry, the Maryland Academy of Pediatric Dentistry, and the American Board of Pediatric Dentistry.

Dr. Jaiarj interests includes traveling, photography, tennis, dogs, cooking home decoration, and piano.