Dental Staff

Paul D. Reznicek, D.D.S.

Dr. Rez is a native of central Missouri. He graduated cum laude from Southwest Missouri State University in 1983 with a B.S. in chemistry. He earned his D.D.S. from the University of Missouri-Kansas City Dental School in 1988 and has been practicing dentistry in Waynesville ever since. Dr. Rez and his wife, Suzi, have raised four children. He is on the board at his church, The River. He is an avid rock collector. Dr. Rez also enjoys taking care of his garden, fruit trees, flower beds, chickens, cows, and anything else you can find outdoors. If he must be indoors, he can be found cheering on the St. Louis Cardinals, Kansas City Chiefs, and Mizzou Tigers.


Thomas W. Tylka, D.M.D.

Dr. Tylka is originally from Toledo, Illinios, but he has made his home in Waynesville since 1994. After serving in the Army 23 years, he retired as a Lieutenant Colonel and joined Reznicek Dental Group in 2006. Dr Tylka is a 1979 graduate of Benedictine College in Illinois where he earned a B.S. in biology. He earned his D.M.D. from Southern Illinois University-Edwardsville School of Medicine in 1983. Dr. Tylka has also completed a 2 year program in Advanced Education in General Dentistry at Ft. Hood, TX. He and his wife, Denise, have three grown children. In his free time, Dr. Tylka enjoys gardening, walking dogs, DIY projects, canoeing, fishing, camping, and visiting family all over the country.


Stephanie Poppen

Registered Dental Hygienist

Stephanie has lived in Missouri most of her life. She earned her degree as a Registered Dental Hygienist in 1992 and has been with Reznicek Dental Group since 1999. Stephanie truly loves her job and enjoys helping her patients maintain their oral health. Outside the office, she enjoys traveling, visiting family, gardening and numerous crafting hobbies.


Jullie Bayless

Registered Dental Hygienist

Julie lives in Cuba, Missouri. She married Greg Bayless in 1985, and together they have two boys who are very active in sports, band, and academic tournaments. Julie spends much of her free time at her sons' various ball games and other activities. Julie graduated with honors from Maryville University with a B.S. in biology. She earned her dental hygiene degree from St. Louis Community College in 1987 and has been with Reznicek Dental Group since 1993. She says her patients are her second family. She has seen several generations and enjoys visiting and seeing pictures of her pateints' families besides taking care of their dental health. She feels as if she has the best of both worlds-- the best patients and the best co-workers. She loves what she does, is thankful she chose this profession, and feels blessed to work at Reznicek Dental Group.


Sue Foster

Administrative Assistant

Sue was born in New England, but loves the Missouri countryside she has called home since 1992. She and her husband have been married since 1979 and have two children and five grandchildren. Sue is trained in secretarial studies and has been helping patients at Reznicek Dental Group with their appointments and insurance since 1994.


Connie Herndon

Administrative Assistant

Connie joined the Reznicek Dental family in February of 2016. She is originally from Attalla, Alabama but has been in Missouri since 2011. Connie is studying environmental science at the American Military University. She is the proud mother of two handsome men. Chris is in the Navy, and Erik is an auto mechanic. Erik and his wife, Lindsie, are the parents of Silas, on whom Connie loves to dote. Connie loves rocks. Her favorites are gifts from her boys: rocks from Alaska’s Matanuska Glacier, Arctic Circle, and Denali State park; limestone from Kentucky’s Mammoth Cave, drusy quartz crystal from Missouri. She is also passionate about helping pets in need.


Suzi Reznicek

Finance and Marketing Manager

Suzi is originally from Columbia, Missouri. Although she and Dr. Rez have been married since 1988, Suzi only began working in the office in 2015. Suzi has a bachelor’s degree in elementary education. She taught at Fort Leonard Wood for a few years before resigning to stay home when the first of her four children came along. She was a frequent volunteer at school and church when her kids were young. Suzi loves singing, baking, canning the produce from her husband’s garden, and numerous crafts.


Donna Flynn

Office Floor Manager and Certified Dental Assistant

Donna was born in Germany to a soldier and his German bride, but she grew up mostly in Colorado. Donna was an assistant baker and a chef in Colorado Springs. She and her husband, Tom, have two grown daughters. The Army brought the family to Missouri in 1998. Donna then completed EMT and Paramedic school before earning her expanded function dental assisting credentials. What she loves most about her job is the patients and being part of a team that makes a difference. Her favorite quote is, “There is no elevator to success; you have to take the stairs.”


Miranda Arganda

Certified Dental Assistant

Miranda is from a military family. She graduated from Waynesville High School in 2009 and has been with Reznicek Dental Group since 2011. Miranda has a much-loved dog she named Tali after one of her favorite fictional characters. She is a huge gamer and loves to play FPS’s, RPG’s, and MOBA’s.


Jennifer Ambrosia

Certified Dental Assistant

Jennifer is a 2009 graduate of Dixon High School and has been with Reznicek Dental Group since 2012. She is married to her high school sweetheart, Robert, and the two recently welcomed a beautiful baby girl. Jennifer loves her two dogs, being outdoors, hunting, fishing, and spending time with her family.


Ashley Flynn

Dental Assistant

Ashely was born in Colorado, but has called Waynesville home since she was eight years old. She is a 2009 graduate of Waynesville High School and is currently pursuing her expanded function dental assisting credentials at Ozarks Technical Community College. Ashely has been with Reznicek Dental Group since October of 2015. She enjoys watching football, playing pool, playing video games, fishing, and watching Netflix.


Jenni Grijalva

Dental Assistant

Jenni was born and raised in El Paso, Texas and moved to Missouri in 2012. She began working on an Associate’s Degree in general studies at a community college in Texas. She finished it here at Columbia College. In high school, Jenni was an all-state cross country runner. She still enjoys running and is among the top women in the area. Jenni enjoys spending time with her son and her dog. She joined Reznicek Dental Group in June of 2016.