Joshua M. Knowles, DDS, MSD
Dr. Knowles’s first job was for his orthodontist while in high school. It was there he witnessed the positive impact that a beautiful, healthy smile has on a person’s outlook. To him, orthodontics is much more than just straightening the teeth; it is about cultivating confidence through their smile. He considers it an honor to provide orthodontic treatment to his patients and get to know them and their families on a personal level. He has a commitment to excellence and strives to deliver the highest-quality care to each person by staying on the cutting-edge of technology and individualizing treatment.

Dr. Knowles was born in Tyler, Texas, went to high school in Arlington, and then graduated from Texas Christian University in Fort Worth with a Bachelor of Science in biochemistry. Dr. Knowles married his high school sweetheart, Katherine, before moving to Houston to attend The University of Texas Dental Branch (DDS) and an additional 2+ years’ specialty training in orthodontics (MSD), where he also earned a master’s in dentistry. He then gained valuable experience working in a private practice in the greater Houston area before moving to central Texas.


  • Diplomate of the American Board of Orthodontics
  • American Association of Orthodontists
  • Southwest Society of Orthodontists
  • American Dental Association
  • Texas Dental Association
  • Central Texas Dental Association
  • UT Houston Orthodontic Alumni Association
  • Psi Omega Dental Fraternity


Dr. Knowles enjoys spending most of his time with his wife and their two young boys. His hobbies include
sport fishing, hunting, and golfing.

Meet Our Team

Our orthodontic team is highly trained and experienced, with an endless enthusiasm for orthodontic care, and we work closely together to help you achieve a healthier, more beautiful smile. We proudly offer high-quality, professional orthodontics in Temple, Texas, to meet your needs and desires, and we strive to ensure that your treatments are comfortable. We invite you to visit or call Smile at the World Orthodontics today at 254-773-8028 to meet our amazing team and schedule your appointment with Dr. Joshua Knowles. We look forward to meeting you!

Tammy – Administrative Assistant
Tammy has been part of our practice for over 13 years. Some of her favorite parts of working at Smile at the World Orthodontics are getting to know our patients during treatment, seeing our patients after treatment with such great results, and working with our fantastic team.Tammy has been married to Scott for 35 years. They have a daughter, Christi; a son, Zach; a son-in-law, Kevin; and two grandchildren, Cason (8) and Chloe (6). Away from the office, Tammy enjoys watching her son play college basketball, watching her grandkids play sports, and reading.


Rebecca – Business/Financial Manager & Marketing Coordinator
Rebecca is our Business/Financial Manager and Marketing Coordinator. She takes pride in all she does. Her dedication stands out through her strong work ethic. She loves meeting the new patients and encouraging them throughout their entire orthodontic experience.Rebecca is from North Dallas. She went to the University of Texas and always wanted to come back to central Texas as soon as she could. She has three children, two sons and a daughter. She thoroughly enjoys spending time with her family and friends. Rebecca also enjoys the outdoors and reading.“I am honored to be a part of a team that cares so deeply about each other and every patient. It’s exciting to witness the impact that a changed smile can have on a patient’s life. Working with Dr. Joshua Knowles and the Smile at the World Orthodontics team has been a joy. They are like family.”
Frances – Administrative Assistant
Frances has been part of our team for more than eight years and is a great addition to our team as an administrative assistant. In her free time, she enjoys taking cruises and spending time with her grandchildren. Frances and her husband of over 36 years, Mike, have two sons, Chad and Brent, two daughters-in-law, Alyssa and Brittney, and two grandchildren, Brooke and Camryn.


Connie – Treatment Coordinator
Connie has been with Smile at the World Orthodontics the longest. She is originally from northeast Texas, although central Texas now feels like home to her. Connie has helped guide the growth of the practice. Using her expertise in customer service and her attention to detail, Connie strives to meet the needs of our patients while providing a welcoming reception. She loves building positive relationships, and individualizing for each new patient has been her ongoing goal since January 1994. Connie enjoys helping people achieve the smile they have always wanted, and she loves the fun atmosphere at our office and the opportunity she has to get to know our patients. Connie and her husband, Earl, are avid baseball fans. They have two daughters and three grandchildren. She loves watching their grandkids play sports, traveling, and watching Texas Rangers baseball.


Helen – Insurance Coordinator
Helen is a longtime member of our team, having been with us for 19 years full time and 2 years part time. She helps everything run smoothly by collecting insurance payments, keeping efficient records, and helping wherever she is needed – we love her flexibility and willingness to help. She attended Temple College, where she studied data entry, and has also attended several seminars and classes at Carestream. Helen loves working with the amazing group of people at our practice; our team is caring, loving, fun, supportive, and always there to listen and help.Helen has been married for 43 years and has two daughters and five grandchildren. She loves to spend her free time with her kids and grandkids.“I am thankful to work for Dr. Joshua Knowles and with the amazing staff here at Smile at the World Orthodontics!”



Jessica – Orthodontic Assistant
Jessica joined the dental field in 2012 and Smile at the World Orthodontics in 2014. As an orthodontic assistant, she assists patients through the entire orthodontic journey. Additionally, she assists with laboratory procedures.Jessica moved to Belton from California when she was five years old. She wasn’t born a Texan, but she got here as fast as she could! Jessica graduated from Belton High School in 2008. Later, she relocated to Dallas to attend dental assisting school. After a few years there, she returned home to central Texas to be closer to her family. She now has two children, Max and Nana. Jessica thoroughly enjoys spending time with her friends and family and being outdoors.“I love working at Smile at the World Orthodontics because I get to be a part of the unique transformation from patient to patient. My favorite part of orthodontics is witnessing the self-confidence a healthy smile creates.”


Kimberly – Dental Assistant
Kimberly has over 20 years of experience and has been with our practice for over nine years. She loves her job because her patients are not patients – they are extended family to her. Kimberly loves the outdoors and enjoys fishing, horseback riding, and camping.