Meet The Doctors

Dentists at Arnold Smiles--Providing Family Dentistry in Arnold,  Missouri   

Dr. Sarah Graesser Gordon

General Dentist

I received my Doctor of Dental Surgery from Marquette University, after graduating from the University of Tulsa with a bachelor's degree in biology. I am currently a member of the American Dental Association, the Missouri Dental Association, and the Greater St. Louis Dental Society.  I work hard to stay up to date with the latest dental technology and advances through continuing education. I try to give back to the community, via Give-Kids-A-Smile Day and Mission of Mercy, providing dental care to underprivileged populations.  In fact, I became interested in dentistry after serving as a member of a dental team on a ten-day mission trip to Honduras. I love being a member of the Arnold Smiles team and have enjoyed getting to know all of the patients. 

A little about my life outside of dentistry – I was born and raised in St. Louis. My husband, Brian, and I have a little boy, Jacob, who was born in June 2019. We love spending time outdoors. My husband and I enjoy hiking and running road races, from 5Ks to marathons. I have also been an assistant coach for Cor Jesu Academy's cross country team; it has been very rewarding to share my passion for running with the next generation. In my spare time, I enjoy spending time with my friends and family. In addition, I am an avid reader, and I’m always looking for good book suggestions!
        Sarah Graesser Gordon, DDS

Dr. Erin Mariscal

General Dentist

I received my Doctor of Dental Surgery from the University of Missouri at Kansas City in 2003. Opening my private practice in 2006 fulfilled my life-long dream. I am a firm believer in continuing education. I am committed to learning new techniques - essential for providing my patients with the highest quality dentistry possible. I hold numerous association memberships including the American Dental Association, the Missouri Dental Association, and the Greater St. Louis Dental Society. My professional activities include working to provide dental care to under served children and adults in the U.S. and in Honduras. Here in Jefferson County, I have worked with the Health Department's "Smiles to Go" program treating under-served school age children in our community. In 2007, I spent 10 days in Honduras on a medical mission trip providing dental care to patients of all ages who have no access to a dentist.

On a personal note, I am married to Marco Mariscal who works in the Kirkwood School District as a German teacher. We have two wonderful children, Noah and Lucia.  Most of my time outside of the office is spent taking the kids to activities and just being a mom.  We also have dog , Eevee (my son named her after the Pokemon character) and a cat, Lily. 

Erin Mariscal, DDS

Dr. Kirthi Tata

General Dentist

Dr. Kirthi Tata grew up locally in Creve Coeur and attended Parkway North High school where she played field hockey and the violin in orchestra. After high school, Dr. Tata moved to Kansas City for both her undergraduate and dental schooling. Dr. Tata received her Bachelor's degree in Chemistry and Psychology as well as her Doctor of Dental Surgery Degree from the University of Missouri-Kansas City. During dental school, Dr. Tata was very active in the American Student Dental Association, Xi Psi Phi Dental Fraternity, and held the position of her class’s social chair all four years. After graduating from dental school, Dr. Tata furthered her education in Oklahoma City where she completed a General Practice Residency at the Veteran’s Affairs Health Care Center. Dr. Tata enjoys surgical procedures, implants, and injectables such as Botox. Outside of the office, Dr. Tata enjoys being outdoors, traveling, working out, watching sports, and spending time with her puppy.  

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