Call Us:  {573} 594-6166

Janah Ebbert

Office Manager

Lisa Otis

Office Manager

Lisa has been a dental receptionist for us since 1997. Lisa handles all front office duties. She will be the one scheduling your appointment, filing your insurance and handling any insurance questions you might have, handling collections, and helping with financial payment options. Lisa has two children. 

Carla Burnett

Dental Assistant

Carla has been a Dental Assistant in our office since 1986. She is certified in Dental Radiology and has successfully completed the Dental Skills Mastery Examination to perform expanded functions within the dental practice.

Carla is married with two grown children and four grandchildren.



Christy Lowrance

Dental Assistant

Christy has been dedicated to the dental field for over fourteen years.  She was trained as a dental assistant in-office and has completed the ADA Accredited Basic Skills Mastery Examination.  Christy poses a wonderful chair-side manner and has the ability to make any patient calm and at ease during their appointment.  Christy is a member of the Sacred Heart Catholic Church Choir.  In her free time, Christy enjoys spending time with her boys and family, golfing, biking, and enjoys going to the movies and the theatre.

Tara Lewis

Dental Assistant

Tara has been a dental clinician since January of 1989. She graduated from Bryan Institute in St. Louis, MO in February of 1989.  She is certified in Dental Radiology and has completed the A.D.A. Accredited Basic Skills Mastery Examination to perform expanded functions within the dental practice.  Tara is married to her husband Brent and they have three beautiful daughters- Taylor, Gracey and Kelley.  Tara loves being with her patients on a daily basis, helping them with all their needs.  She also enjoys helping them feel more positive about themselves.  Tara feels truly blessed to be where she is and doing what she does.  She has a true passion for caring for the needs of others. 

Shari Brewer

Dental Assistant

Sheri has been a dental assistant for over 28 years.  She started in a private practice and was dentist-trained. After 11 years, Shari moved to corrections and was an assistant there for 16 years. In May of 2014, Sheri moved back into private practice working for Gentle Healthy Smiles. In 1997, Shari completed the Academy for Advanced Radiographic Studies.  In 2003, Shari passed the Basic Skills Mastery Exam.  Shari is dedicated to her work and enjoys working hard.  She feels this is where God wants her to be and has blessed her with a wonderful staff to work with.  She is a member of the Sacred Heart Catholic Church. Shari is married to Kenny and they have four children- Alyse, Scott, Alex and Adam.

Tara Twellman

Dental Hygienist

Tara received her Associate of Applied Science degree in Dental Hygiene from Saint Louis Community College in Forest Park in 2007. Prior to becoming a registered dental hygienist, Tara also worked as a dental assistant and has been in involved in the dental care field for sixteen years. While a student, Tara was a member of Phi Theta Kappa, National Honor Society and the Academic Dean’s List. Professionally, she holds both Missouri Licensure and National Board Certification in Dental Hygiene. Showing her commitment to providing excellent dental care, Tara has also volunteered in the dental clinic at the Lincoln County Health Department and with the GiveKidsASmile program with the Greater St. Louis Dental Society and providing yearly dental exams and fluoride treatments at Van-Far School. Tara is always wanting to extend her dental knowledge to others with demonstrating proper home care and explaining the vital importance of oral health, whether it be in the office or helping at the local nursing home. As you will hear Tara say “I love my profession and never feel as if I am working!”  Tara and her husband, Brian and their daughter Avery, live in rural Lincoln County. Our patients are sure to appreciate Tara’s warmth, dedication and bright smile.


Becca Silvey

Dental Hygienist

Becca received her Associate of Applied Science degree in Dental Hygiene from State Fair Community College in Sedalia in 2016. Before attending dental hygiene school, Becca was a dental hygiene assistant and worked front office for a short period of time. She was also a former University of Missouri student where she received a Bachelor of Science in Parks and Recreation management and Agricultural Business. Her first choice in education is due to her love for an active lifestyle and the outdoors! She loves to continue her education through extended classes and real life experiences. She also has one little man in her life…her dog Ranger! While Becca loves to spend time with friends and family, she enjoys meeting new people! Our patients are sure to feel welcomed and comfortable with Becca’s loving and bouncy personality.

Leann Rhodes

Dental Hygienist

Leann is a graduate of Saint Louis Community College in Forest Park, graduating in 2008 with an Associate of Applied Science degree in Dental Hygiene. As a student, Leann was on the Academic Dean’s List. She is a member of the American Dental Hygienist Society, Missouri Dental Hygienist Society and the Greater St. Louis Dental Hygienist Society. Leann holds both Missouri licensure and National Board Certification in Dental Hygiene. Her volunteer efforts include Dinosaur Doings, free fluoride treatments for local schools and GiveKidsASmile with the Greater St. Louis Dental Society. Leann credits wearing braces as a teenager with piquing her interest in the dental field. A lifelong resident of Troy, Leann enjoys heading north each week to Vandalia. When you visit our office, be sure and catch Leann’s winning smile and sunny disposition. 

Rita Stewart

Dental Assistant


MaKenzie Wallace

Dental Hygienist


Cami Blackman

Office Manager

Cami received her B.S. in Business Administration from Culver Stockton College. Cami has a background in finance. She has worked in banking at the local branch in mortgage accounting. Customer Service is a top priority for Cami. Her friendly smile and cheerful demeanor will put you at ease. Cami is an active member of the Vandalia community and is often found volunteering. She is a member of the Vandalia Chamber of Commerce, the treasurer for the Vandalia Recreation Corporation. She is also on the Bright Futures Advisory Board for Van-Far and is heavily involved in the Eastern Missouri Family YMCA. Cami lives in Vandalia with her husband, Al. In her free time, she enjoys spending time with her family and canning her own vegetables. 

Jamie Bergthold McCallum

Dental Assistant

​Jamie has been a certified dental assistant for over 15 years.  She graduated class president of Nichols Career Center Dental Assisting Program in Jefferson City, Missouri on May 31, 2001- during which she completed Expanded Functions training.  For 13 years, Jamie was employed by Dr. Bruce Garrett in Mexico, Missouri until his retirement. Jamie feels blessed every day for the opportunity that the Gentle Healthy Smiles team has given her to utilize and build on her current skills—focusing on patient confidence, confidence and quality dental care.  Jamie has been married to her husband Jeramie for 13 years. They enjoy hunting, fishing, canoeing, ATV riding, antiquing, home improvement projects and, most importantly, spending quality time with friends, family and their three dogs.  



Our Team