Douglas Dixon , DMD, MSD, PhD

Clinical Associate Professor, Periodontics



Dr. Dixon received his DMD degree from the University of Pittsburgh in 1993. In 1994, He completed an AEGD-1yr program and became a Fellow in the Academy of General Dentistry. He received his MSD degree (2001), Certificate in Periodontics (2001), and his PhD (2005), all from the University of Washington. Dr. Dixon became a Diplomate, American Board of Periodontics in 2002.

Current Courses

  • PERIO 660 – Graduate Clinical Periodontics
  • PERIO 585b – Graduate Director’s Seminar

Research Interests

Dr. Dixon’s research has focused on pathogenic bacteria, lipopolysaccharides and innate immunity utilizing in vitro, in vivo, and germ-free animal models. He later worked to develop synthetic peptides to augment the body’s natural antimicrobial defenses within the saliva and oral environment as well as oral biofilm formation. He went on to develop various research projects involving bone and soft tissue regeneration (rhBMp-2 directed osteo and angiogenesis), cytotoxic effects of oral bacteria surface proteins, biocompatibility of various dental materials, and implant and surgical wound healing studies. His research collaborations have been funded by the NIH, the DOD as well as private industry and academic groups.

Service Awards and Honors

Dr. Dixon is a Diplomate of the American Academy of Periodontics. While completing his PhD at the University of Washington, he received the University of Washington, Health Science Center Magnuson Scholar award in 2004. Research awards include the MG Joseph L. Bernier Research Award in 2001, 2005, 2012 and the Southern Academy of Periodontology Research Award in 2010 and 2011. Additionally, Dr. Dixon received the American Academy of Periodontology 2012 Educator Award. During his final assignment at the USMA, West Point, Dr. Dixon received the Army’s Legion of Merit. In 2014, Dr. Dixon received the Special Citation Award from the Academy of Periodontology for his service as Vice Chair, Task Force to Update the Academy Glossary of Terms.

Professional Service

Dr. Dixon holds both a specialty (periodontics) and sedation license in the state of Washington. He currently treats patients and supervises graduate residents in the Periodontal Clinic (B403). He is committed to academic excellence and has mentored many Masters level residents at the University of Washington, the University of Chicago, and the Georgia Regents University Schools of Dentistry and Oral Biology.

Current university committee appointments/commitments include: Chair, Graduate Periodontics Academics and Remediation committee; Chair, Graduate Periodontics Admission Committee; Chair, Graduate Periodontics Observational Fellowship/Externship committee; Chair, Graduate Periodontics Research Committee; Acting Chair, Department of Periodontics New Faculty Search Committee; Member, Graduate Prosthodontics Faculty Search Committee; Member, Graduate Program Director’s Committee; SOD Research Committee and SOD Distinguished Faculty Committee.

Dr. Dixon has served as an ad-hoc reviewer for the Journal of Periodontology, Peptides, the Journal of Dental Research and the Journal of Periodontal Research.

Previously, Dr. Dixon served as Vice Chair, American Academy of Periodontology Glossary of Terms Task Force charged with updating the Academy’s Glossary of Terms. He has also served as the both the Director of Research and Deputy Director of the Army Advanced Education Program in Periodontics (AAEP). Dr. Dixon has been involved in numerous other committees through the years. He was a member of the District VIII Nominating Committee for the American Academy of Periodontology from 2003 to 2008, and District VIII Secretary for the American Academy of Periodontology from 2008 to 2012. Additional appointments have included the Infectious and Quality Control Board (USADTRD), Institutional Animal Care and Use Committee, IACUC (USADTRD/NIDBR/EAMC), Institutional Review board, IRB and Dental Human Protections Administrator (HPA) (EAMC); Chair, MG Joseph Bernier Research Competition, Graduate Dental Education committee (AAEP); and Chair, Dental Scientific Review Committee (AAEP).

Selected Publications

  • Dixon DR, Morgan R, Hollender LG, Roberts FA, O’Neal RB. Clinical Application of Spiral Tomography in Anterior Implant Placement: Case Report. J Periodontol. 2002 Oct; 73(10):1202-9.
  • Dixon DR, Reife R, Cebra JJ, Darveau RP. Commensal Bacteria Affect the Innate Response. A Pilot Study. J. Periodontol. 2004 Nov; 75(11):1486-92.
  • Dixon DR, Bainbridge BW, Darveau RP. Modulation of the Innate Response within the Periodontium. Periodontology 2000, Vol. 35, 2004 1-22.
  • Dixon DR and Darveau RP. LPS heterogeneity: Innate Host Responses to Bacterial Modification of Lipid A Structure. Critical Reviews in Oral Biology and Medicine / JDR Aug 2005.
  • Reife RA, Coats SR, Al-Qutub M, Dixon DR, Braham PA, Billharz RJ, Howald WN, Darveau RP. Porphyromonas gingivalis Lipopolysaccharide Lipid A Composition Significantly Affects E-Selectin Expression. Cell Microbiol. 2006 May; 8(5):857-68.
  • Dixon DR, Karimi-Naser L., Darveau RP, Leung KP. The Antiendotoxic Effects of the KSL-W Decapeptide on E. coli O55:B5 and Various Oral Lipopolysaccharides. Journal of Periodontal Research, 2008 AUG; 43(4): 422-30.
  • Dixon DR, Jeffrey NR, Dubey VS, Leung KP. Antimicrobial Peptide Inhibition of Porphyromonas gingivalis 381-induced hemagglutination is Improved with a Synthetic Decapeptide. Peptides. 2009 Dec; 30(12):2161-7.
  • Stancoven B, Lee J , Dixon DR, Grodin E, Bisch F, McPherson J, Susin C & Wikesjö U. The Effect of Systemic PTH on Osteoinduction using rhBMP2 or DFDBA in the CSD model in Rats. Journal of Periodontal Research2012 Sept 12.
  • S Lu, T Fiorini, D Dixon, M Rohrer, T Fiorini, F Bisch J Lee, C Susin, U Wikesjo. Evaluation of a Novel Compression-Resistant Carrier (CRC) for Recombinant Human Bone Morphogenetic Protein-2 (rhBMP-2) in Onlay Graft Indications. J Clin Periodontol, 2013 JUL; 40(7): 688-97.
  • Pelaez M, Susin C., Lee J., Fiorini T, Bisch FC, Dixon DR, McPherson JC III, Buxton AN, Wikejo UME. Effects of rhBMP-2 Dose on bone formation/maturation in a rat critical-size calvarial defect model. J Clin Periodontol, 2014 May 7.