accessibility ACCESSIBILITY

Meet The Doctors

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

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. Sarah Graesser

General Dentist

I received my DDS from Marquette University, after receiving my BS in Biology from the University of Tulsa. 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 am excited to be 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.  I love spending time outdoors. My husband, Brian, and I enjoy hiking and running road races, from 5Ks to marathons. I am also 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, especially my little niece.  In addition, I am an avid reader, and I’m always looking for good book suggestions!

Sarah Graesser, DDS


Dr. Megan Fasanella

General Dentist

Dr. Fasanella is a Chicago native, recently relocated to St. Louis, and is excited to join the team at Arnold Smiles. She holds a Bachelor of Science degree in Biology from Indiana University and a Doctor of Dental Medicine from Midwestern University. Dr. Fasanella is an active member of the American Dental Association, the Missouri Dental Association, the Greater St. Louis Dental Society and the Chicago Dental Society. Dr. Fasanella enjoys participating in many continuing education courses through local dental groups and study clubs, staying up to date with current dental technology to provide the best care for her patients. She strives to provide comfortable, quality, stress-free dentistry, treating all of her patients with kindness and care. While not at the office Dr. Fasanella enjoys spending time with her husband, exploring St. Louis, trying new restaurants, reading and traveling

Megan Fasanella, DMD