Abstract:Objective To investigate the effects of oral ulcer gel combined with triamcinolone on inflammatory factors, tumor markers and hemorheology in patients with oral submucosal fibrosis (OSF).Methods A total of 94 patients with OSF treated in our hospital from July 2019 to June 2022 were selected and divided into combination group (n =47) and control group (n =47) according to random number table. The control group received triamcinolone treatment, and the combined group received oral ulcer gel combined with triamcinolone treatment. Clinical indexes such as mouth opening, mucosal lesion area and pain before and after treatment were observed. Serum levels of interleukin-2 (IL-2), transforming growth factor-β1 (TGF-β1), tumor necrosis factor-α (TNF-α) and other inflammatory factors;Serum levels of neuron-specific enolase (NSE), cytokeratin 19 fragment (Cyfra21-1), squamous cell carcinoma antigen (SCC-Ag) and other tumor markers;Whole blood viscosity low cut (LS), plasma viscosity (PV), fibrinogen (Fib), and other hemorheological indexes. Adverse reactions were recorded for both groups.Results There were statistically significant differences in mouth opening, mucosal lesion area, VAS score and serum IL-2, TGF-β1, TNF-α, NSE, Cyfra21-1, and SCC-Ag before and after treatment between the two groups (P <0.05). After treatment, the mouth opening degree in the combined group was higher than that in the control group, and the mucosal lesion area, VAS score and serum levels of IL-2, TGF-β1, TNF-α, NSE, Cyfra21-1, and SCC-Ag in the combined group were lower than those in the control group (P <0.05). The difference of LS, PV and Fib before and after treatment between the two groups was statistically significant (P <0.05). After treatment, LS, PV and Fib in combination group were lower than those in control group (P <0.05). The total effective rate of combination group was higher than that of control group (P <0.05). During treatment, no significant adverse reactions were observed in both groups.Conclusion Oral ulcer gel combined with triamcinolone is effective in the treatment of OSF, which can reduce the levels of serum inflammatory factors and tumor markers and improve the hemorheology of patients with no significant adverse reactions.