the purpose of the present study was to estimate the frequency of hpv dna in four groups of oral lesions, including oral squamous cell carcinoma. sixty paraffin-embedded oral tissue samples were examined for the presence of hpv dnas using the pcr technique. these specimens were obtained from patients with oral squamous cell carcinoma (oscc), leukoplakia, oral lichen planus (olp), and pyogenic g...

the role of oxygen free radicals in the initiation, promotion and progression of carcinogenesis and the protective role of anti-oxidant defenses has been the subject of much speculation in the recent past with conflicting reports in the literature. in recent years, increasing experimental and clinical data have provided compelling evidence for the involvement of oxidative stress in a large numb...

myiasis is the condition of infestation of the body by fl y larvae (maggots). the deposited eggs develop into larvae, which penetrate deep structures causing adjacent tissue destruction. it is an uncommon clinical condition, being more frequent in tropical countries and hot climate regions, and associated with poor hygiene, suppurative oral lesions, alcoholism and senility. the diagnosis of myi...

Background: Oral cancer is among the 10 most common cancers worldwide with an increasing global incidence. Compromised antioxidant defense system plays a role in occurrence of cancer. This study evaluated the salivary antioxidant level of oral cancer patients compared to a control group. Patients and Methods: This case-control study was conducted on 22 oral squamous cell carcinoma patients pre...

the aim of this study was to ascertain the prevalence of human papillomavirus (hpv) 16/18 in oral squamous cell carcinoma (oscc) and normal oral mucosa in iranian individuals with oscc and their association with various risk factors. the investigation followed a hospital-based case-control design. cases were individuals with diagnosed oscc, age- and sex-matched with controls. sixty-six paraffin...

background cervical cancer is the second most common cancer in women worldwide. recent studies show that human papillomavirus (hpv) dna is present in all cervical carcinomas and in some cervicitis cases, with some geographical variation in viral subtypes. therefore determination of the presence of hpv in the general population of each region can help reveal the role of these viruses in tumors. ...