Résumé
Statement of Problem: Oral lichen planus [OLP] is a chronic inflammatory oral mucosal disease with indefinite etiology. In recent researches, free radicals have been deliberated as the possible etiology of inflammatory and autoimmune diseases
Purpose: This study was aimed to evaluate the stress oxidative status with the nitric oxide [NO] index in a sample of Iranian population
Materials and Method: In this descriptive-comparative study, serum NO level was assessed in 20 OLP patients as the case group and 20 healthy individuals as the control group. Collected data were analyzed by adopting two Sample t-test, using SPSS 16 software. The statistical significance level was set at p< 0.05
Results: The mean serum NO levels in OLP patients and healthy controls were 17.1 +/- 3.4 ng/ml and 14.5 +/- 2.7 ng/ml respectively; which revealed a significant statistical difference [p= 0.009]
Conclusion: The results of the current study with its limitation may support the premise that higher serum levels of NO in patients with OLP might activate the process of lymphocytes and cellular immunity system; hence, possibly endorsing the effect of serum NO in pathogenesis of lichen planus
Résumé
Ehlers-Danlos syndrome [EDS] is a rare syndrome, primarily diagnosed by clinical findings and family history. The clinical manifestations of EDS in the orofacial region consist of extra-oral and intra-oral manifestations. Its prognosis depends on the [sub] type and the proper, early diagnosis of the syndrome. The purpose of the present paper is to discuss the manifestations of this syndrome, especially its oral manifestations, and to present a case