Association of Oral Health and Periodontal Disease with Hypertension: A Cross-Sectional Study

Abstract

Objectives: The association of orodental and cardiovascular health has been an area of extensive research for many years. As per American Heart Association hypertension 2017 guidelines, good periodontal health is associated with better systolic blood pressure control. However, there have been conflicting results for hypertension and dental correlation in a few other studies. Moreover, there are no recognized oral manifestations, seen in patients with hypertension. Indian data on this subject are scarce. Therefore, the present study was contemplated to determine the frequency and nature of oral manifestations in hypertensive patients as compared to normotensive patients. Materials and Methods: In this observational cross-sectional study, participants were divided into two groups. Group A included 40 hypertensive subjects and group B included 40 healthy normotensive volunteers. Oral symptoms such as dry mouth, altered taste sensation, mouth odor, and bleeding from gums were noted. An oral examination was performed to check periodontal pockets, lichenoid reactions, and gingival hyperplasia. Russell’s Periodontal Index was used to estimate gingival and periodontal health. Results: The mean age of patients in the hypertensive group was higher than normotensive groups (53.8 ± 11 vs. 42.45 ± 12, P = 0.001). Oral symptoms in the form of dry mouth, halitosis, and altered taste were reported in 60%, 52.5%, and 42.5% of hypertensive patients which were significantly higher as compared to the control group. Bleeding gums, lichenoid reactions, and gingival enlargement were also significantly higher in hypertensive than normotensive groups. The mean value of Russell’s index was 1.09 ± 0.41 in group A which was significantly different from group B (0.05 ± 0.10). Gingival hyperplasia and gum bleeding were predominantly found in patients on calcium channel blockers, whereas lichenoid reactions were significantly present in patients on angiotensin receptor blockers. Hyposalivation was reported with all four classes of antihypertensive drugs, predominantly diuretics. Conclusion: The orodental involvement in hypertensive subjects has a wide spectrum from mildly symptomatic halitosis and dryness of mouth to severe bleeding gums, lichenoid lesions, irreversible bone loss, and periodontitis that may require dental visits and interventions. The documented mucosal changes can also be attributed to antihypertensive drugs. Regular dental examinations should be made part of routine screening programs of hypertensive patients to protect them from various oral complications and subsequent inflammation-mediated changes in vasculature endothelium.