South Bedford Oral & Maxillofacial Surgery South Bedford Oral & Maxillofacial Surgery, located in Mt. Kisco, New York, combines the talents of our three dedicated doctors: Dr. Adam Arnoldt, DDS, Dr. Jason Baker, DMD, and Dr. Benn Lieberman, DMD. Their office in northern Westchester allows them to bring a full scope of Oral and Maxillofacial Surgery practice to you and your family. Their expertise includes corrective jaw surgery, wisdom tooth removal, dental implants, and bone grafting procedures. In addition they are skilled at diagnosing and treating facial pain, facial injuries and TMJ (temporomandibular joint) disorders. Drs.