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Meet the Team

Our Practice

We provide care that will set the stage for your child’s dental care well into adulthood. Most people who have a fear of the dentist had bad experiences in their childhood. Our main goal is to make sure your child only has great experiences at Cumberland Pediatric Dentistry and Orthodontics, everytime. As both Pediatric and Orthodontic specialists, we know that we need to bring together technologies that protect your child’s health, comforts that help them receive anxiety-free dental care, and amenities that make trips to the dentist fun!

Our Doctors in Cookeville, TN

Bryan Byrnside, DMD

Pediatric Dentist

Dr. Bryan received his Bachelor’s Degree from Emory University. He then attended the Medical University of South Carolina where he obtained his Doctor of Dental Medicine degree. After graduating from Dental School Dr. Bryan pursued advanced graduate training in Pediatric Dentistry at the Boston University Henry Goldman School of Dental Medicine. Dr. Bryan joined our Cumberland family in August 2014.

Dr. Bryan is originally from Charleston, South Carolina. He is proud to currently call Nashville his home with his rescue dogs Chip, Duke, Kenobe, Daisy, and Buddy. In his spare time, he enjoys running, traveling, cheering on the Predators, and learning new things. He enjoys working with Cumberland because of the team environment and the way we interact with our patients. He loves being a Pediatric Dentist because it enables him to make such a positive impact on his patients’ lives.

Jantzen Lambert, DDS

General Dentist

Dr. Jantzen is a graduate of Middle Tennessee State University with a degree in Business Finance. After graduating from MTSU, she chose to pursue a career in dentistry and obtained her dental degree from Meharry Medical College. Dr. Jantzen went on to receive additional training in pediatric dental techniques at the University of Alabama School of Dentistry.

Dr. Jantzen has been with Cumberland since February 2014. She is currently a member of the American Dental Association, Tennessee Dental Association, and the American Association of Women Dentists.

A Middle Tennessee native, Dr. Jantzen still resides here with her husband, Matthew. In her free time, she enjoys attending hockey and football games, concerts, and traveling. Dr. Jantzen enjoys getting to have fun at work and making visits to the dentist as easy as possible for her patients. She feels most rewarded by knowing that she is helping her patients be more confident and proud of their smiles!

Venetra Jones, DDS

General Dentist

Dr. Jones attended Tennessee State University where she graduated with her bachelor’s degree in Chemistry with a minor in Sociology.  She then pursued her doctorate degree at Meharry Medical College, and continued on to complete a General practice residency.

Though originally from Paducah, Kentucky, Dr. Jones calls Middle Tennessee home. In her free time, she enjoys singing, road tripping with her mom, and learning new things! She is very excited to call CPDO her new home!

Mallory Dawson, DDS


Dr. Dawson attended the University of Georgia where she graduated with her Bachelors Degree in Science Education. She then pursued her doctorate degree at the Medical College of Georgia in Augusta. After dental school, Dr Dawson attended Seton Hill University where she received a Masters in Orthodontics. Dr. Dawson is a member of the American Association of Orthodontics, and is a Diplomate of the American Board of Orthodontics.

Originally from Perry, Georgia, Dr. Dawson loves living in Tennessee. In her spare time, she enjoys hiking, biking, and skiing.

Our Cookeville Team

Melissa Williams

Practice Administrator

Tonya Sells

Pediatric Treatment Coordinator

Brandy McCoy

Orthodontic Treatment Coordinator


510 S Jefferson Ave, Cookeville, TN 38501

(931) 854-1200

Mon: 8:00 a.m. to 5:00 p.m.
Tue: 8:00 a.m. to 5:00 p.m.
Wed: 8:00 a.m. to 5:00 p.m.
Thu: 8:00 a.m. to 5:00 p.m.
Fri: 8:00 a.m. to 1:00 p.m.
Sat—Sun: Closed


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