Diabetes and Oral Health: Evidence, Mechanisms, and Clinical Implications
Arionget Jemima
Department of Pharmacoepidemeology Kampala International University Uganda
Email: jemima.arionget@studwc.kiu.ac.ug
ABSTRACT
Diabetes mellitus is a chronic metabolic disorder with wide-ranging systemic consequences, including profound effects on oral health. Accumulating evidence demonstrates a bidirectional relationship between diabetes and oral diseases, particularly periodontal disease, whereby poor glycaemic control exacerbates oral pathology and chronic oral inflammation adversely affects metabolic regulation. This review synthesizes current evidence on the epidemiology, mechanisms, and clinical implications of diabetes-related oral health complications. It examines the spectrum of oral manifestations associated with diabetes, including periodontal disease, gingival and periodontal infections, xerostomia, dental caries, altered oral microbiota, microvascular dysfunction, and impaired wound healing. Key pathophysiological mechanisms such as hyperglycaemia-induced immune dysregulation, advanced glycation end-product accumulation, oxidative stress, inflammatory cytokine networks, and vascular impairment are explored to elucidate the biological basis of these associations. The review further highlights the impact of periodontal disease and its treatment on glycaemic control, underscoring the clinical relevance of oral health in diabetes management. Special populations, including children, adolescents, and pregnant individuals, are discussed alongside public health, health literacy, and access-to-care considerations. Finally, the paper emphasizes the need for integrated medical-dental care models, routine oral health screening in diabetes care, and interprofessional collaboration. Addressing oral health as an integral component of diabetes management is essential for improving clinical outcomes, reducing systemic inflammation, and enhancing overall quality of life.
Keywords: Diabetes Mellitus, Oral Health, Periodontal Disease, Glycaemic Control, and Integrated Care.
CITE AS: Arionget Jemima (2026). Diabetes and Oral Health: Evidence, Mechanisms, and Clinical Implications. IAA Journal of Scientific Research 13(1):41-54.