The Doctor of Philosophy program in oral science requires a minimum of 72 s.h. of graduate credit, including advanced coursework and original research that culminates in the successful defense of a dissertation. Students must pass a comprehensive examination, prepare and gain approval of a research project, and complete and successfully defend a dissertation that describes the results of their research. Completion of the program usually requires four to six years of full-time study. Students must maintain a cumulative g.p.a. of at least 3.00 to earn the degree.

Applicants to the Ph.D. program must meet the admission requirements of the Graduate College and those specified by the program. Applicants whose first language is not English must score at least 100 (internet-based) on the Test of English as a Foreign Language (TOEFL) or at least 550 on the paper-based test.

Applicants to the Ph.D. program must submit a statement describing past research experience and current research interests, and state how completion of the Ph.D. program fits their career goals.

Applications and transcripts are reviewed and accepted on a continuing basis. A personal interview may be requested.

Programs normally begin July 1 each year.