Our Practice

Thank you for selecting Endodontics South, Ltd, the office of Dr. Marvin Leigh Speer and Katherine T. Behrents. We are an endodontic specialty practice(root canal specialists) dedicated to exceptional care using state-of-the-art technology, located in Festus, Missouri. We are proud to serve all of Southeast Missouri including:

Jefferson County

Washington County

St. Francois County

Ste. Genevieve County

Perry County

Madison County

Iron County

Bollinger County

Wayne County

Scott County

Reynolds County

Wayne County

Cape Girardeau County

Butler County

Shannon County

St. Louis County


At Endodontics South Ltd., we are committed to providing the highest quality endodontic therapy in a caring and relaxing atmosphere. Your comfort is our primary concern. Whatever your dental problem might be, we are trained to help and make your stay with us pleasant. Everyone will receive exceptional care, utilizing the most advanced treatment techniques in our state of the art facilities.

We are available to answer any questions or address any concerns our patients may have. We look forward to the opportunity to serve you. Thank you for choosing Endodontics South Ltd.