Meet the Orthodontists

Braces U has 4 full-time orthodontists that travel between the six office locations.


Dr. Cory F. Coombs - Braces U Orthodontics

Dr. Cory F. Coombs

Dr. Coombs graduated from the University of Utah earning a bachelor’s degree in Medical Biology. He then attended dental school at the University of Louisville in Kentucky. There, he completed a Doctorate in Dental Medicine in which he graduated Magna Cum Laude and earned many awards. Furthering his education to become a specialist in orthodontics, Dr. Coombs attended a two-year residency at the University of Louisville. While achieving his Certificate of Advanced Training in Orthodontics, he also earned a Masters degree in Anatomical Sciences and Neurobiology.

I am very excited that you have visited Braces U and we look forward to seeing you very soon! I have dedicated my career to finding the most efficient and comfortable treatment options that result in a beautiful new smile for you (or your child). Outside of Braces U, I love spending time with my wife and three kids. We love all outdoor recreational activities; skiing, camping, biking, and boating.

Dr. Robert Lamb - Braces U Orthodontics

Dr. Robert “Bert” L. Lamb

Dr. Robert Lamb is a native of New Orleans, Louisiana, where he attended the University of New Orleans and subsequently the LSU School of Dentistry, earning his DDS Degree in 1983.

From 1983 through 1987 Dr. Lamb served as a Dental Officer in the United States Air Force at Ramstein Air Base in Germany, where he developed an interest in treating children. Dr. Lamb continued his studies earning a Specialty Certificate in Orthodontics at the University of Louisville Department of Growth and Special Care.

Since 1989, Dr. Lamb has been engaged in the private practice of Orthodontics.  In 2009, Dr. Lamb accepted a position as a civilian orthodontist employed by the US Army in Bamberg Germany. Dr. Lamb continues his lifelong commitment to learning with special emphasis on how bad bites develop, how the muscles of the face and the airway contribute to mal-occlusion and how technology is contributing to our understanding and modern treatment modalities.

My passion is orthodontics and I am looking forward to helping you LOVE your smile. I have helped to create beautiful smiles for over 30 years as a seasoned professional orthodontic specialist.  I have had the opportunity of witnessing the advancements in braces technology and am very excited to offer you the very latest treatment options to transform your smile in the fastest, most efficient, and comfortable way possible.  I also love photography and traveling with my wife and four children.

Dr. Cole Weaver - Braces U Orthodontics

Dr. Cole A. Weaver

Dr. Weaver was born in Casper, Wyoming and grew up in Gillette, Wyoming.  He graduated with honors from the University of Wyoming with a bachelor’s degree in Biology.  He then attended dental school at Creighton University in Omaha, Nebraska, where he graduated Cum Laude with his Doctorate of Dental Surgery.

While in dental school, Dr. Weaver received many honors including induction into the prestigious Jesuit honorary, Alpha Sigma Nu, as well as honorary induction into the national dental honor society, Omicron Kappa Upsilon. Dr. Weaver spent two additional years furthering his education in residency at the University of Iowa. He received his Certificate in Orthodontics and his Masters of Science degree in Orthodontics. During his time in residency, Dr. Weaver was recognized for his research on the genetics of malocclusion by the American Association of Orthodontists and the University of Iowa. Dr. Weaver was honored with the Charley Schultz Resident Scholar Award and the Max Smith Graduate & Postdoctoral Competition Award.

Because Dr. Weaver believes that staying in the forefront of orthodontics is vital to providing his patients with the best care possible, he regularly seeks out education and training opportunities to further his knowledge.  Dr. Weaver maintains active memberships in the American Association of Orthodontists, the American Dental Association, the Wyoming Dental Association, and The Rocky Mountain Society of Orthodontists.

I am passionate about the specialty of orthodontics and the benefits it provides my patients. It is my goal to give every patient a smile they are proud of because I understand the impact it can have on their lives. I believe that investing in your smile is one of the best decisions you can make. Outside the office, I love spending time with my wife, Allison, and our three young children. I enjoy spending my days camping, golfing, running, snowboarding, and watching University of Wyoming sports. I am also passionate about volunteering in my community and church.

Dr. Lori L. Tima

Dr. Lori L. Tima

Dr. Lori Tima received a Bachelor of Science in Zoology and Physiology from the University of Wyoming in 2007, and graduated with high distinction from University of Nebraska Medical Center College of Dentistry with a DDS degree in 2012. She then earned her Masters degree and orthodontic certificate from the University of Missouri Kansas City School of Dentistry Department of Orthodontics. Following graduation in 2014, Dr. Tima joined Bighorn Orthodontics in Wyoming, where she practiced until she joined Braces U in 2017. Dr. Tima and her husband, Tory, have a little boy name Taji. They are all ecstatic to be moving to Greeley, Colorado and joining the Braces U team. When she isn’t working with patients, Dr. Tima enjoys playing violin, watching HGTV, and wandering the isles of Hobby Lobby.


Seeing patients and helping them with their smiles is the very best part of my day. I thoroughly enjoy being part of the Braces U team and look forward to many years of working together to provide the best orthodontic care possible. When I’m not thinking about teeth (rarely!), I also enjoy playing the violin and spending time with my husband and son.