By Joen Iannucci, Laura Jansen Howerton
Supplying crucial assurance of dental radiography ideas and whole technical guide, Dental Radiography: rules and methods, 4th version, is your key to the secure, powerful use of radiation within the dental workplace. the 1st ever full-color dental radiography source, this mixture of a textbook and a coaching handbook publications you step by step via universal approaches, with accompanying illustrations, case stories, and interactive workouts that will help you observe what you've discovered to practice.
A concise, easy writing kind makes advanced strategies extra available and is helping you simply determine crucial information.
Step-by-step tactics mix transparent directions with anatomical drawings, positioning images, and corresponding radiographs that will help you hopefully and safely practice particular recommendations, therefore minimizing radiation publicity to the patient.
Helpful tricks aspect universal difficulties you'll come upon in perform and supply a list to steer you thru the do's and don'ts of imaging procedures.
Quiz Questions on the finish of every bankruptcy investigate your figuring out of vital content.
Key phrases, studying targets, and bankruptcy summaries spotlight crucial info that will help you examine extra efficiently.
Interactive workouts, terminology video games, and case reviews modeled at the nationwide Board Dental Hygiene exam (NBDHE) on Evolve make stronger your figuring out and assist you arrange for examinations.
New bankruptcy on cone beam computed tomography (CBCT) familiarizes you with rising practices in dental radiography.
Updated bankruptcy discussions and new radiographs maintain you brand new at the most up-to-date details in electronic imaging.
UNIQUE! Full-color layout and new illustrations and images make clear tough techniques and assist you grasp right positioning techniques.
UNIQUE! A finished appendix presents fast, quick access to all mathematical formulation utilized in dental radiography.
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Supplying crucial insurance of dental radiography rules and whole technical guide, Dental Radiography: ideas and methods, 4th variation, is your key to the secure, powerful use of radiation within the dental place of work. the 1st ever full-color dental radiography source, this mix of a textbook and a coaching handbook publications you step by step via universal approaches, with accompanying illustrations, case stories, and interactive workouts that can assist you follow what you've realized to perform.
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Additional info for Dental Radiography: Principles and Techniques (4th Edition)
General radiation b. characteristic radiation c. Compton scatter d. coherent scatter 33. Which of the following occurs only at 70 kVp or higher and accounts for a very small part of the x-rays produced in the dental x-ray machine? a. general radiation b. characteristic radiation c. Compton scatter d. coherent scatter 34. Which of the following describes primary radiation? a. radiation that exits the tubehead b. radiation that is created when x-rays come in contact with matter c. radiation that has been deflected from its path by the interaction with matter d.
Increased milliamperage produces an increased number of x-rays; milliamperage affects density. • Exposure time also influences the number of x-rays produced. • Intensity is the total energy contained in the x-ray beam in a specific area at a given time; intensity is affected by kilovoltage peak, milliamperage, exposure time, and distance. • Increased kilovoltage peak, milliamperage, or exposure time results in increased intensity of the x-ray beam. • Intensity of the x-ray beam is reduced with increased distance.
0 second = 15 mAs). Note that both these exposures result in the same number of milliampere-seconds, which produces the same density on a dental radiograph. TABLE 3-3 Guidelines for Adjusting Kilovoltage Peak (kVp), Milliamperage (mA), and Exposure Time Adjustment Exposure* ↑ ↓ ↑ ↓ ↓ ↑ ↓ ↑ kVp by 15 kVp by 15 mA mA Exposure Exposure Exposure Exposure time by 1/2 time by 2 time time *Adjustment in exposure time needed to maintain diagnostic density of image. If a patient has difficulty holding still during the exposure, for example, the dental radiographer can increase the milliamperage and decrease the exposure time to compensate for the patient’s movement.
Dental Radiography: Principles and Techniques (4th Edition) by Joen Iannucci, Laura Jansen Howerton