A calcified tissue which covers the surface of dentin and the roots of teeth forms the ‘cementum’.1 It has some properties similar to that of alveolar bone and provides a support to the tooth by anchoring the principal fibres to the root surface.2,3 Alterations in the physical characteristics, as well as chemical composition of cementum may be observed in periodontal disease conditions.4 Resorption of the cementum causes or removal of the tissue substance, as a result of any pathology, may lead to the exposure of the dentin, thereby leading to dentinal hypersensitivity.5,6 Hence, damage to the cementum must be prevented, by preventing the periodontal diseases and minimizing the inadvertant removal of the tissue during periodontal therapy.7,8
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