Dental waxes are often a blend of several waxes that are necessary to develop the most desirable qualities. In general, more information is available on physical properties and manipulation of dental waxes than on the composition or nature of the ingredients. Since heats of transition are fundamental in characterizing the chemical nature of matter, this information was obtained from waxes and b...

BACKGROUND Paraffin has characteristics that make it popular among fire breathers. AIMS To describe a case of paraffin-induced lipoid pneumonia in a fire breather. METHODS The patient was evaluated clinically in relation to his occupational history. RESULTS A 32-year-old man presented with dyspnoea, tachypnoea and non-productive cough of 2 h duration that started immediately following an ...

  Background and Objective: Formalin-fixed paraffin-embedded tissues are a valuable source of DNA for molecular studies. We designed and optimized an efficient procedure for DNA extraction from formalin-fixed paraffin embedded tissues. Materials and Methods: Seventy three blocks of cervical paraffin-embedded tissues were investigated. DNA was extracted using 45 minutes boiling in alkaline sol...