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Background: Oral cancer encompasses all malignancies that originate in the oral tissues and remains a major public health problem throughout the world as an important case of poor health and illness. Head and neck cancer accounts for 9.8% of the estimated 6,44,600 incidental cancer cases in India. Oral Squamous Cell Carcinoma (SCC) is a serious and developing concern globally, accounting for more than 90% of malignant cancers of the oral cavity. Salivary diagnostics have been demonstrated to have potential in the detection and screening of oral pre-cancer and cancer in a variety of research settings. The continual and close contact between saliva and the mucosa, where cancer develops, is the foundation of this diagnostic capability. Materials and Methods: This research utilized spectrophotometry to quantify Lactate Dehydrogenase levels in serum and saliva of 30 healthy people which consisted the control group and 31 Oral Potentially Malignant people which constituted the study group. Results: On estimation and comparison, the mean Lactate Dehydrogenase levels in serum (397.4968+71.6392 IU/L) and saliva (675.4935+139.3352 IU/L) among patients with Oral Potentially malignant lesions/conditions were higher than the mean Lactate Dehydrogenase levels in serum (390.8667+71.0953 IU/L) and saliva (201.3700+89.1439 IU/L) among controls. Conclusion: Higher serum and salivary LDH levels in Oral Potentially malignant lesions/conditions than in control groups signifies the importance of assessing salivary LDH levels, in the prognosis of the same. Further prospective longitudinal studies are required to assess the salivary LDH levels among the patients with malignant transformation of Oral Potentially malignant lesions/conditions to oral cancers.
K et al. (Fri,) studied this question.