RHS Exam Verified 100% Correct

Radiation - Answer A form of energy carried by waves or a stream of particles The emission and propagation of energy through space or a substance in the form of waves or particles. X-radiation - Answer 1. high energy radiation produced by the collision of a beam of electrons with a metal target in an X-ray tube energy, ionizing electromagnetic radiation. X-ray - Answer Weightless bundles of energy (photons) without electrical charge that travel in waves with a specific frequency at the speed of light Radiology - Answer The science or study of radiation. Radiograph - Answer An image or picture produced on a receptor by exposure to ionizing radiation, a two dimensional representation of a three dimensional object Dental Radiograph - Answer A photographic image produced on film by the passage of X-rays through the teeth and related structures Radiography - Answer The art and science of making radiographs by the exposure of film to x-rays Dental Radiography - Answer The production of the radiographs of the teeth and adjacent structures by the exposure of an image receptor to x-rays Dental radiographer - Answer Any person who positions, exposes, and processes dental x-ray image receptors. Image - Answer A picture or likeness of an object Image Receptor - Answer a recording medium; examples include X-rays film, phosphor plate, or digital sensor Imaging, dental - Answer The creation of digital, print, or film representations of anatomic structures for the purpose of diagnosis. Importance and uses of Radiographs - Answer 1. Detect-lesions diseases and conditions of the teeth and surrounding structure 2. Confim or Classify- suspected diseases 3. Localize-lesions or foreign objects 4. Evaluate-growth and development 5. Illustrate-changes secondary to caries, periodontal disease, and trauma 6. Document-the condition of a patient at a specific point in time W.C. Roentgen (1895) - Answer 1. Discovery of X-rays on November 8th 2. Father of X-rays O. Walkhoff (1896) - Answer First dental radiograph W.J. Morton (1896) - Answer First dental radiograph in US (skull) C.E. Kells (1896) - Answer First dental radiograph in US (living patient) W.H. Rollins (1901) - Answer 1. First paper on dangers of xradiation 2. developed the first dental x-ray unit in 1896 3. FATHER OF SCIENCE OF RADIATION PROTECTION W.A. Price (1904) - Answer Introduction of bisecting techniques H.R. Raper (1913) - Answer 1. First dental text 2. (1925)Introduction of bite-wing technique 3. (1933)Concept of rotational panoramic proposed Eastman Kodak Company (1913) - Answer First prewrapped dental films W.D. Coolidge (1913) - Answer 1. First Xray tube 2. introduced the hot cathode tube Victor Xray Corp, Chicago (1923) - Answer First dental X-ray machine F.G. Fitzgerald - Answer 1. (1947)Introduction of long-cone paralleling technique 2. (1948)Introduction of panoramic radiography 3. (1955)Introduction of D-speed film (kodak ultra speed) the purpose of dental radiography - Answer to provide the oral health care team with radiographic images for the best diagnostic quality. Atom - Answer 1. Fundamental unit of matter. 2. consist of orbiting electrons and central nucleus. Atom diagram - Answer protons - Answer positively charged particles neutron - Answer particles with no charge nucleus - Answer 1. dense core of the atom 2. composed of protons and neutrons 3. Occupies very little space electrons - Answer 1. tiny negatively charged particles that have very little mass. 2. Travel around nucleus electrostatic force (binding energy) - Answer 1. attraction between the positive nucleus and the negative electrons 2. determined by the distance between the nucleus and the orbiting shells matter - Answer anything that occupies space and has mass energy results - Answer when mass is altered k shell electrons - Answer 70 kev L shell electrons - Answer 12 kev M shell electrons - Answer 3 kev ionization - Answer 1. the production of ions or the process of converting an atom into ions 2. Occurs when x-rays strike patient tissues. ion - Answer an atom that gains or loses an electron and becomes electrically unbalanced ion pairs - Answer One positive and one negative that results when an electron is removed from an atom. Ionizing Radiation - Answer 1. capable of producing ions by removing or adding electrons to an atom 2. classifications: Particulate radiation & Electromagnetic radiation Particulate radiation - Answer 1. possesses mass 2. travels in straight lines at high speed types of Particulate radiation - Answer 1. Electrons: Beta particles Cathode rays 2. Alpha particles 3. Protons 4. Neutrons. Beta particles (particulate radiation) - Answer fast moving emitting into nucleus cathode ray - Answer high speed electrons originating in tube alpha particles - Answer protons and neutrons emitting from Nuclei electromagnetic radiation - Answer 1. manmade/occurs naturally 2. no mass, no weight, no electric charge 3. propagation of wavelike energy without mass through space or matter 4. move through space as both a particle and wave (concepts) Particle concept (electromagnetic radiation) - Answer characterizes electromagnetic radiation as discrete bundles of energy called photons. Wave concept (electromagnetic radiation) - Answer 1. characterizes electromagnetic radiation as waves . 2. Focuses on: Velocity Wavelength Frequency. electromagnetic radiation exam