Dental Stem Cells and Lipopolysaccharides: A Concise Review.

Dental tissue stem cells (DTSCs) are well known for their multipotent capacity and regenerative potential. They also play an important role in the immune response of inflammatory processes derived from caries lesions, periodontitis, and gingivitis. These oral diseases are triggered by toxins known as lipopolysaccharides (LPS) produced by gram-negative bacteria.

[Epidemiology of oral HPV infection in young healthy individuals].

Background: HPV infection is the most common sexually transmitted viral infection, and is associated with several neoplasms.

Aim: To describe the epidemiology, natural history and risk factors associated with oral HPV infection in asymptomatic young adults.

Methods: A prospective and longitudinal study was conducted, including subjects without oral pathology, who were sampled from the oral mucosa.

[Influence of orthodontic appliances on the occurrence of Candida spp. in the oral cavity].

Introduction: Use of orthodontic appliances creates favorable conditions for growth of dental bacterial plaque.

Aim: To establish if use of orthodontic appliance affects the presence of Candida species in the oral cavity in a group of pediatric patients.

Materials And Methods: We studied 60 patients between 4 and 10 years old, requiring treatment with orthodontic appliances.

[Proteinase activity in Candida albicans strains isolated from the oral cavity of immunocompromised patients, with oral candidiasis and in healthy subjects].

Background: Candida albicans has a variety of virulence factors, including secreted aspartyl proteases, which are determinant factors in the pathogenesis of this yeast in immunocompromised patients.

Aims: Proteinase activity was identified in C. albicans strains isolated from the oral cavity of immunocompromised patients with cancer, diabetes and HIV+, with oral candidiasis and in healthy subjects.

Low prevalence of high risk human papillomavirus in normal oral mucosa by hybrid capture 2.

High risk human papillomavirus (HR-HPV) are recognized as a necessary factor to development cervical cancer. During the last decade many studies have found HR-HPV in oral squamous cell carcinoma (OSCC) and normal oral mucosa, however the association between HR-HPV and OSCC is still uncertain. The aim of the study was to determine DNA HR-HPV in normal oral cavity of healthy adults.