Why does a narwhal have a 9-foot tooth—and what does it actually do?

Why does a narwhal have a 9-foot tooth—and what does it actually do? Hero Type Image Amanda Brower Fri, 09/25/2026 - 12:07 Alumni + Friends Amanda Brower September 25, 2026 While students often use breaks to study or relax, Case Western Reserve University School of Dental Medicine alumnus Martin Nweeia, DMD (DEN ’84), chose a different path. He traveled to remote Amazonian villages and a distant atoll near Yap Island in Micronesia to study childhood dental disease, hoping to return in time for his senior-year clinical rotations.This same curiosity has shaped his research and dental career for