Immunomorphological assessment of regional lymph nodes for predicting metastases in oral squamous cell carcinoma.

Background: Oral squamous cell carcinoma is the most common neoplasm and comprises of approximately 80% of the cancers occurring in the oral cavity. The role of the host response to this neoplasm has been recognized, and for many years the regional lymph node in tumor-bearing hosts has been considered as an anatomic barrier to the systematic dissemination of tumor cells. Morphological evaluation of the regional nodes has aided in understanding the immune response.

Role of angiogenesis in the pathogenesis of oral lichen planus.

Background: The etiology of oral lichen planus (OLP) is not fully understood. It is generally considered to be a T-cell mediated chronic inflammatory oral mucosal disease. There is increasing evidence that chronic inflammation is linked to the diseases associated with endothelial dysfunction and is involved in the induction of aberrant angiogenesis.

Assessment of atmospheric microbial contamination in a mobile dental unit.

Introduction: Bioaerosols are important considerations in infection control as well as in occupational health. Bioaerosols may carry potentially hazardous microbes, viruses, fungi, allergens, and other toxic substances that may harm the dental operator, patient, and the dental assistant by causing nosocomial infections.

Objective: To assess the level of atmospheric microbial contamination before, during, and after dental treatment procedures in the dental operatory of a mobile dental unit (MDU).