Aim: The aim of the present study was to correlate and compare the periodontal status and thyroid hormone levels  in systemically healthy, hyperthyroid and hypothyroid subjects. The present study also aims to correlate the duration of thyroid disease to periodontal health.

Methods: Periodontal status and thyroid profile were estimated for 60 patients aged 25–50yrs who were divided into three groups of systemically healthy, hyperthyroid and hypothyroid. Duration of thyroid disease to periodontal healthwas also correlated.

Results: Almost similar oral hygiene conditions and gingival status were observed in all the three groups.Even though hypothyroid group showed more periodontal destruction compared to other groups the difference was not statistically significant.Pearson’s correlation showed positive association between probing depths and duration only in hyperthyroid group.

Conclusion: This study concludes that thyroid hormone disorders didn’t affect the periodontal health thereby suggesting a casual relationship.