Oral cavity, when subjected to various forms of chronic insults or microtrauma, often results in a hyperplastic lesion, commonly referred to as inflammatory reactive hyperplasia. This category includes various lesions such as peripheral fibroma, peripheral ossifying/cementifying fibroma, pyogenic granuloma, and peripheral giant cell granuloma. They are primarily seen to develop in close proximity to the source of chronic irritant and have a close resemblance in terms of biological behavior and clinical presentation. Histopathologically, they display a common feature of hyperplastic fibrous tissue, but also have some variations like the presence of giant cells or aggregate of calcified mass depending on the histogenesis of the lesion. They were the most common tumor-like lesions to be seen in the oral cavity, familiarity with these lesions are of utmost importance. The present article portrays a series of 5 cases of different clinical forms of reactive hyperplasia with a brief literature review. The current manuscript is presented with an aim to enhance the knowledge about hyperplastic lesions.
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