Practice Background

Oral and Maxillofacial Surgery Associates was founded in 1950 by Dr. Benjamin J. Gans in Chicago, Illinois. Shortly thereafter he was joined in practice by Dr. Roger Kallal who was a pioneer in the field of orthognathic surgery. During the evolution of the practice, we have continued to maintain a commitment to the values of our founders: exceptional patient care and staying abreast of current developments in medicine and dentistry.

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