History -- Generation of X rays -- Exposure controls -- Radiation dosimetry -- Radiation biology -- Radiation protection -- Patient selection criteria -- Analog film versus digital image -- What do dental X-ray images reveal? -- Intraoral imaging techniques -- Intraoral technique errors -- Extraoral imaging techniques -- Quality assurance -- Infection control -- Occupational radiation exposure monitoring -- Hand-held X-ray systems -- Localization of objects (slob rule) -- Recommendations for interpreting images -- X-ray puzzles : spot the differences -- Radiographic anatomy -- Dental caries -- Dental anomalies -- Osseous pathology (alphabetic) -- Lagniappe (miscellaneous oddities).