About Estes Orthodontics

Meet The Team

Our team is highly trained and motivated to provide the very best in orthodontic care to each of our patients. We provide the most advanced orthodontic treatments found anywhere, and work hard to continue our education to ensure our office is always on the cutting edge of the orthodontic world.

Laurie Estes, DDS, MSD


  • B.S. at University of California Davis
  • D.D.S. at University of the Pacific Arthur A. Dugoni School of Dentistry
  • Orthodontic Internship at the University of Florida
  • M.S.D. and Orthodontic Residency completed at University of the Pacific Arthur A. Dugoni School of Dentistry.


  • American Association of Orthodontists
  • American Dental Association
  • Berkeley Dental Society - current board member
  • California Dental Association
  • Tau Kappa Omega honor society

Personal Background

Dr. Estes grew up in Walnut Creek and is proud to be a Bay Area native. She knows first hand how a beautiful smile and properly aligned bite can impact one’s self-esteem and confidence. Dr. Estes loves to being an orthodontist because of the positive changes she is able to make in the lives of her patients.

Dr. Estes and her husband, Stephen, have been married since 2015. They love spending time outdoors – snowboarding, hiking and backpacking are some of their favorite activities. They also enjoy cooking, exploring new restaurants, and spending time with family, friends and their doc, Cooper.

Dr. Ken Brehnan

Ken Brehnan, DMD, MS

Diplomate, American Board of Orthodontics


  • B.S. at University of North Dakota in Electrical Engineering (Magna Cum Laude, Completed 4 year program in 3 years)
  • M.S. at University of Miami in Biomedical Engineering
  • D.M.D. at the University of Florida
  • Completed Orthodontic Residency at the University of California in San Francisco


  • World Federation of Orthodontists- Founding Member
  • American Lingual Association of Orthodontists- Founding Member
  • American Dental Association
  • American Association of Orthodontists
  • Contra Costa Dental Society
  • Berkeley Dental Society- Past President
  • Pacific Coast Society of Orthodontists
  • California Dental Association
  • Is a member of a number of honorary societies such as Epsilon Tau Lambda

Personal Background

Dr. Brehnan completed his orthodontic residency at the University of California – San Francisco. He has taught in the dental assisting programs at Contra Costa College and Diablo Valley college. Dr. Brehnan has published articles in numerous publications, such as The Journal of Dental Research, and he has presented research papers and national and international meetings, such as The International Association of Dental Research. He also appeared on an ABC TV show to discuss adult orthodontics.

Dr. Brehnan was a member of the Dental Delegations in 1990 that traveled to the then USSR. This delegation was instrumental in creating official exchange of research and assistance to the USSR.

Dr. Brehnan is married to Ilinka and father to Nicole, Alexander and Stefan. Dr. Brehnan loves being a father and being active in his children’s lives. In his spare time, he enjoys running, exercising, sailing and tennis.

Please contact our practice to schedule an appointment for an orthodontic evaluation. If needed, early treatment now will give your child a healthy, beautiful smile for the future.