Dr. Geisinger received her B.S. from Duke University, her D.D.S. from Columbia University School of Dental Medicine, and her Certificate in Periodontology and Master of Science degree from the University of Texas Health Science Center at San Antonio.  She is an Associate Professor, Director of Advanced Education in Periodontology, and Director of Faculty Development and Support in the Department of Periodontology at the University of Alabama School of Dentistry.  Dr. Geisinger is a Diplomate in the American Board of Periodontology. She is the Immediate Past President of the American Academy of Periodontology Foundation, AAPF, a Trustee of the American Academy of Periodontology, AAP, the Chair of the AAP’s Women in Periodontics Task Force. She is a member of the American Dental Association’s Council on Scientific Affiairs and Chair of the ADA’s Seal Subcommittee. Dr. Geisinger lectures nationally and internationally on topics including periodontology and systemic disease, implant dentistry, and periodontal surgical techniques. 

 Dr. Geisinger’s research focuses on the relationship between systemic conditions and periodontal diseases. Her recent work has focused on gingivitis and periodontitis and their effect on pregnant patients as well as elucidating the mechanism of interaction between diabetes mellitus and periodontal disease.  Her body of research established a rationale for oral health intervention in pregnant women and developed reliable methods to instruct oral hygiene and measure improvements in oral health, both clinically and from cytokine levels in the gingival crevicular fluid.