Increase in the nitric oxide release without changes in cell viability of macrophages after laser therapy with 660 and 808 nm lasers.

The aim of this study was to evaluate the influence of low-level laser therapy (LLLT) with different parameters and wavelengths on nitric oxide (NO) release and cell viability. Irradiation was performed with Ga-Al-As laser, continuous mode and wavelengths of 660 and 808 nm at different energy and power densities. For each wavelength, powers of 30, 50, and 100 mW and times of 10, 30, and 60 s were used.

Evaluation of temporomandibular joint disk displacement and its correlation with pain and osseous abnormalities in symptomatic young patients with magnetic resonance imaging.

Objective: To evaluate the occurrence of temporomandibular joint disk displacement and its correlation with pain and osseous abnormalities using magnetic resonance imaging (MRI) in patients under 21 years of age.

Study Design: MRI images in open- and closed-mouth positions from 102 patients, under 21 years of age (mean age 17 years), were studied retrospectively. Patients were divided into six groups according to the disk-condyle relationship.

Impact of oral mucositis on oral-health-related quality of life of patients diagnosed with cancer.

Introduction: Oral mucositis (OM) has been described as the oral complication most frequently associated with antineoplastic therapy. However, the influence on the quality of life of affected patients is still unclear.

Objective: To evaluate the impact of OM on the oral-health-related quality of life (OHRQoL) of patients diagnosed with cancer, who developed chemotherapy- and/or radiotherapy-induced OM.

Prevalence of oral lesions in Brazilian patients with tuberculosis.

Background: Oral lesions of tuberculosis (TB) are rare and usually associated with the secondary form of the disease.

Aim: The aim of the present study was to determine the prevalence of oral lesions in a cohort of TB-infected individuals.

Materials And Methods: The study was carried out in two reference centers for the treatment of TB in Recife, Brazil.

Clinicopathological features and proliferation markers in tongue squamous cell carcinomas.

The aim of this study was to evaluate the clinicopathological features and immunohistochemical expression of proliferation markers in oral tongue squamous cell carcinomas (OTSCC). Sixty-three patients without previous treatment or distant metastases were selected. Clinical information was retrieved from medical charts, histopathological analysis was performed and expression of proliferation markers (Ki-67, Mcm-2 and geminin) was evaluated.

Oral manifestations of syphilis.

The past decade has shown a significant rise in the prevalence of infective syphilis in the developed world, and striking increases in its frequency have occurred in Eastern Europe, particularly the UK, and in the US. Although oral manifestations of syphilis are most likely to be observed during secondary disease, all stages of the disease can give rise to oral lesions. Significant oral lesions such as gumma-associated bony destruction and a possible predisposition to oral squamous cell carcinoma are associated with tertiary disease.