Thomas A. Coleman, DDS, practiced clinical dentistry for nearly 40 years in Vermont, and has published papers on cervical dentin hypersensitivity (CDH), noncarious cervical lesions, the abfractive process, and occlusal diagnosis and therapy. In the late 1970s, he developed a technique known as the air indexing method to detect and quantify CDH. Coleman continues to work with colleagues, including John O. Grippo, DDS, to advance scientific understanding of etiologic factors relating to masticatory system effects on teeth, muscles of mastication, and temporomandibular joint sequelae for occlusal disease.