Background: Chronic periodontitis and oral mucosal lesions are common oral conditions that are increasingly being linked to systemic inflammation. ‘Elevated levels of inflammatory markers such as C- reactive protein (CRP), interleukin-6 (IL-6), and tumor necrosis factor-alpha (TNF-α) suggest that oral diseases may contribute to a broader inflammatory response in the body’. Additionally, the role of dental materials in triggering localized inflammatory reactions remains a subject of interest.This study aimed to evaluate the impact of systemic inflammatory markers on chronic periodontitis and oral mucosal lesions while also assessing the potential role of dental materials in oral inflammation. Methods: A total of 93 participants were recruited from Sardar Begum Dental College, Peshawar, over a one-year period (March 2023 to March 2024). Clinical assessments included ‘probing pocket depth, clinical attachment loss, plaque index, gingival index, and bleeding on probing to evaluate periodontal health’. Patients with oral mucosal lesions underwent further examination, including histopathological analysis where necessary. ‘Blood samples were collected and analyzed for CRP, IL-6, TNF-α, white blood cell (WBC) count, erythrocyte sedimentation rate (ESR), and fibrinogen levels’. Data were analyzed statistically using SPSS version 25.0, with a significance level set at p < 0.05. Results: ‘Elevated levels of CRP, IL-6, and TNF-α were observed in participants with chronic periodontitis and oral mucosal lesions, indicating a strong systemic inflammatory response’. A significant correlation was found between probing pocket depth and clinical attachment loss, confirming disease progression in affected individuals. Participants with leukoplakia and oral lichen planus exhibited higher inflammatory markers, suggesting a possible link between systemic inflammation and mucosal disease. Additionally, some individuals with amalgam and composite restorations reported localized irritation or hypersensitivity reactions, raising concerns about material compatibility in susceptible individuals. Conclusion: The study highlights the strong association between systemic inflammatory markers and chronic periodontitis, reinforcing the idea that oral diseases may have broader systemic effects. The findings also indicate that certain oral mucosal lesions are linked to increased inflammation, which may contribute to disease progression. Furthermore, dental materials may play a role in triggering localized inflammatory responses, suggesting the need for careful material selection. Given these findings, an integrated approach to oral and systemic health management is essential to improving patient outcomes.