About Our Practice

Siouxland Oral & Maxillofacial Surgery proudly serves Sioux Falls, SD, Mitchell, SD, Brookings, SD, Yankton, SD, and the surrounding areas with the full range of oral and facial surgery services. Our oral surgeons, Denis Miller, DDS, MBA, and Louis T. George, DMD, offer tooth replacements through dental implant procedures, wisdom teeth removal, general tooth extractions, orthognathic surgery, TMJ disorder treatment, and more facial and dental procedures.

Having four convenient locations allows us to help more patients from the greater Siouxland region, and our staff is dedicated to providing top-quality service to every patient that comes to our practice. If you are looking for oral health solutions for missing teeth, dental infections, wisdom teeth problems, oral or jaw pain, or other issues, Dr. Miller or Dr. George can evaluate your condition and begin forming a treatment plan that works for you. Feel free to contact one of our offices for more information about our practice and the procedures we offer.

Denis Miller, DDS, MBA

Denis Miller, DDS, MBA, has been an oral and maxillofacial surgeon since 1998, and he has worked at Siouxland Oral & Maxillofacial Surgery since 1999. He is an active member of the larger dental and medical communities: he volunteers with Community Health Care patients in Sioux Falls, and he’s a clinical professor with the University of South Dakota Dental Hygiene Program in Vermillion, SD. He is also the board chairman for the Lake Area Vo-tech Dental Assistants program in Watertown.

Louis George, DMD

Dr. Louis George moved to South Dakota from the East Coast and joined Siouxland Oral & Maxillofacial Surgery in 2007. He is currently the co-owner of the Siouxland practice and has thoroughly immersed himself in the Midwest and its wonderful traditions. Dr. George is an active attending surgeon at both Sanford Medical Center and Avera McKennan Hospital. He also serves as a primary member of the facial trauma team at Sanford. Dr. George has participated in several large research projects, and his work on the surgical treatment of obstructive sleep apnea was published in the Atlas of the Oral and Maxillofacial Surgery Clinics of North America. He was also a frequent lecturer at the annual meetings for The American College of Oral Surgeons.


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