Oral and Maxillofacial Pathology

Dr. Carl M. Allen is Emeritus Professor of the Ohio State University, College of Dentistry, retiring after 36 years of teaching. Following retirement, he practiced with a dermatology group, followed by an otolaryngology group. Two of his former residents took over the practice, and Carl finally retired. Dr. Allen received his DDS from Ohio State in 1975 and trained in oral and maxillofacial pathology at Indiana University from 1978 to 1980. Throughout his career, he has been active in seeing patients clinically who were referred for evaluation of oral disease. He has also actively participated in affiliated oral and maxillofacial biopsy services, allowing him to examine microscopically the tissue sections obtained from the patients he had seen. He has been a Diplomate of the American Board of Oral and Maxillofacial Pathology since 1983 and completed a six-year term (1994-2000) as Editor of the American Academy of Oral and Maxillofacial Pathology. He was President of the AAOMP in 2004 and was a Director of the American Board of Oral and Maxillofacial Pathology from 2005 to 2013. Carl has published over 125 refereed articles in dental and medical journals and has written chapters dealing with oral disease for texts in the fields of otolaryngology, microbiology, dermatology and surgical pathology. Three significant contributions, however, were as a co-editor of the textbook, Oral and Maxillofacial Pathology by Neville, Damm, Allen and Chi, which is in its fifth edition; the Color Atlas of Oral and Maxillofacial Diseases, by the same authors, published in 2019; and author of Oral Disease: Case Studies of Difficult Diagnoses, published in 2026.

• 1. Developmental Defects of the Oral and Maxillofacial Region2. Abnormalities of Teeth3. Pulpal and Periapical Disease4. Periodontal Diseases5. Bacterial Infections6. Fungal and Protozoal Diseases7. Viral Infections8. Physical and Chemical Injuries9. Allergies and Immunologic Diseases10. Epithelial Pathology11. Salivary Gland Pathology12. Soft Tissue Tumors13. Hematologic Disorders14. Bone Pathology15. Odontogenic Cysts and Tumors16. Dermatologic Diseases17. Oral Manifestations of Systemic Diseases18. Facial Pain and Neuromuscular Diseases19. Forensic Dentistry