Approximately 60% of patients with chronic graft-versus-host disease (GVHD) have GVHD in their mouth. Patients, as well as dentists, often confuse oral GVHD with other mouth problems. Seeking treatment from a dentist familiar with chronic GVHD is important. Many thanks to Kadmon, a Sanofi Company. whose support, in part, made this presentation possible.