DENTAL HYG 450 Final Exam Study Guide Principles of Dental Hygiene 2.

Principles of Dental Hygiene 1 Final Exam Study Guide Use this guide to help you study for the final exam. Be sure to review all PowerPoints and .readings :Describe each mode of disease transmission and give an example of each in the dental settingDirect contact: direct exposure to body tissues/secretions with broken skinIndirect contact: injury w/ contaminated sharps & contact with contaminated surfacesDroplet infection: splatter/spray of microbes onto mucus membrane/broken skinAirborne particles: bacterial particles in water vapor inhaled into lungs- :Define aerosol production- - (<50 μm) everything in dentistry produces some kind of aerosol, occur in soil/liquid form, are invisible and may remain suspended in air, small (<5 μm may be breathed into lungs) and larger get trapped higher in respiratory tree :Define spatter and describe how it is different from aerosol production- - (>50 μm diameter) heavier/larger particles that usually fall within 2 ft of origin Define each of the following pathogens transmissible from the oral cavity. In your description - .include the clinical features of the disease, causative agent, and mode of disease transmission HIV: blood (semen/vaginal fluid/breast milk) borne pathogen, causes immunodeficiencystages: acute infection (2-4 weeks) immediately contagious before its decidable*