Welcome to the website of Drs. Kenneth Mulder, DDS, MS; Robert Kintz, DDS; David Dalrymple, DDS, MD; and Lawrence Manning, DDS, MS. At the Practice of Oral Surgery Associates, our board certified oral and maxillofacial surgeons offer consultation and treatment regarding dental implants, TMJ disorder, wisdom teeth, orthognathic surgery, bone grafts, and pathology.