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Is energy carried by waves or streams of particles. |
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High energy radiation produced by the collision of a beam of electrons with a metal target in an x-ray tube. |
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A beam of energy that has the power to penetrate substances and record image shadows on photographic film. |
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The science or study of radiation as used in medicine. |
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A photographic image produced on film or digital sensor by the passage of x-rays through an object. |
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A Photographic image produced on film by the passage of x-rays through teeth and related structures. |
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The art and science of making radiographs by the exposure of film to x-rays. |
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The production of radiographs of the teeth and adjacent structures by the exposure of film to x-rays. |
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What two things do Dental radiographs allow the dental professionals to do? |
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Definition
1. identify many conditions that may otherwise go undetected. 2.see conditions that cannot be seen clinically. |
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Who was the "Father of X-ray"(Radiation)? what year? |
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Definition
Wilhelm Conrad Roentgen Nov. 8th 1895 |
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Who took the first Dental Radiograph? |
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Who took the First Dental Radiograph on a Live Person? |
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what is the incorrect term for a radiograph? |
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When were the first standards for the manufacture of dental x-ray machines put into place? |
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Who regulates the manufacture and installation of dental x-ray machines? |
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Who regulates how Dental x-ray machines should be used |
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The State and Local Government |
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What are two types of Dental X-Ray Machines? |
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Definition
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What 3 parts make up an Intraoral X-Ray Machine? |
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Definition
1. Tubehead 2. PID 3. Extension Arm |
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What is Part of the X-ray machine contains the heavy metal housing? |
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Definition
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Position Indicating Device |
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What is an Open-ended Lead Lined Cylinder extending from the opening of the tubehead? |
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Definition
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What is the main purpose of the PID? |
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Definition
To Aim and shape the X-ray beam |
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what does the Extension arm on a Dental X-ray machine do? |
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Allows for positioning of the tubehead. |
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What turns the x-ray machine on and off? |
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Definition
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A device used to hold and align intraoral dental x-ray films in the mouth. |
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what is the Beam Alignment device? |
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Definition
An instrument used to help the dental radiographer position the PID relative to the tooth and film. |
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Name 4 Types of film Holders. |
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Definition
1. Styrofoam Bite Block 2. EEZEE-Grip 3. Uni-Bite (Uni-Grip) 4. Rinn XCP Film holders |
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Name 2 types of Beam alignment devices. |
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Definition
1.Precision Film holders (metal collimating shields that restrict the size of the x-ray beam) 2. Rinn XCP Film holders |
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Why do we take Dental Radiographs?(3) |
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Definition
- Necessary component of comprehensive care -Essential for diagnostic purposes -Enable the dental professional to identify many conditions that may otherwise go undetected. |
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What are the 3 main USES of Dental Radiographs? |
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Definition
Detection- of disease, lesions, and conditions of the teeth and bones that cannot be identified clinically. Confirming- suspected diseases Localization- of lesions and foreign objects |
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what is the primary benefit of Dental Radiographs? |
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Why is it essential to take Dental X-rays why diagnosing a patient? |
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Definition
Because the underlying structures that cannot be seen clinically must be noted before a diagnosis is made. |
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What are a few things that you might notice on an x-ray that you couldn't see clinically? |
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Definition
missing teeth, extra teeth, impacted teeth, dental caries, periodontal disease, tooth abnormalities, tetained roots, cysts and tumors |
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"Generally" who is a dental radiographer? |
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Definition
Anyone who positions, exposes and processes dental x-ray film (including Knowledge and skill/ duties and responsibilities) |
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What are the Knowledge and skill requirements for taking dental radiographs? |
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Definition
-Basic knowledge of Radiation History -working knowledge of radiation physics, characteristics, biology, and protection. -familiar with dental x-ray equipment, film, image characteristics,processing, and quality assurance. - Patient management basics -technique concepts and basic skills |
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What are the seven duties and responsibilities of a Dental Radiographer? |
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Definition
1. Positioning and exposure of Dental X-ray film 2. Processing of dental x-ray films 3. Mounting and identification of dental radiographs 4. education of patients 5. Maintenance of darkroom facilities and processing equipment 6. Implementation and monitoring of quality control procedures. 7. Ordering of film and supplies |
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What is an Intraoral Radiographic Examination? |
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Definition
a radiographic inspection of the teeth and intraoral adjacent structures |
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Definition
Film that is placed inside the mouth to examine the teeth and supporting structures. |
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how many types of Intraoral Radiographic examinations are there? and what are they? |
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Definition
3: Periapical, Interproximal(Bitewing), Occlusal |
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What is the purpose of a Periapical Intraoral Radiograph? |
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Definition
used to examine the entire tooth and supporting bone. |
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What type of film would you use with a PA Radiograph? |
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Definition
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What technique(s) would you use foe PA Radiographs? |
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Definition
Paralleling and Bisecting |
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What is the purpose of interproximal Radiographs? |
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Definition
To examine the crowns of both arches of teeth on a single film |
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What type of film is used with interproximal Radiographs? |
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Definition
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What technique is used to take interproximal radiographs? |
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What is the purpose of occlusal radiographs? |
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Definition
to examine large areas of the maxilla or the mandible on one film. |
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what type of film is used with occlusal radiographs? |
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What technique is used during occlusal radiographs? |
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Full mouth x-rays (radiographs) |
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How many radiographs are in a FMX? |
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Definition
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What are Dentulous and Edentulous Areas? |
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Definition
they are tooth-bearing areas of both Maxilla and Mandible/ |
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What is the basic diagnostic criteria for Intraoral Radiographs? |
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Definition
Must show: 1. Optimum Density (overall Darkness) 2. Contrast (shades of gray) 3. Definition 4. Detail |
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When taking an image and trying to fit the diagnostic criteria you want to least amount of ___________ ? |
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Definition
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FMX must include radiographs that show __ ____-________ ______ |
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What must PA Radiographs show? |
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Definition
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what is an Extraoral Radiographic Examination? |
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Definition
A radiographic inspection of Large areas of the skull or jaws. |
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What is Extraoral Film and what does it show? |
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Definition
It is Film placed outside the mouth and it shows a wide area. |
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When would you as the clinician determine what kind of radiographs to take? |
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Definition
Based on the Medical History, Dental History, and Chief complaint for dental app. |
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What is the Basic concept of what Digital imaging radiographs are? |
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Definition
an electronic sensor and computerized imaging system that produces x-ray images almost instantly on a computer screen. |
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Filmless imaging system, computer file containing pictorial information. |
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What does it mean to Digitize something? |
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To convert the image to digital form then processed by a computer. |
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Discrete unit of digital information. |
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what are the 2 types of digital imaging? |
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Definition
CDC (charged coupling device_ SPI (storage phospor imaging) |
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What is the Purpose and USE of DIGITAL Dental Radiographs? |
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Definition
1. Diagnose- dental disease 2. Detect- lesions, disease, and conditions of the teeth and surrounding structures. 3. Confirm-classify suspected disease. 4. Provide- info. during dental precedures 5. Evaluate: growth and development 6. Illustrate- changes in disease status 7. Document- the condition of a patient at a specific point in time. |
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Definition
Method of capturing a radiographic image using a sensor, breaking it into electronic pieces, and presenting and storing the image using a computer. |
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Who is a digital radiographic image captured? (4 steps) |
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Definition
1. sensor is placed inside the mouth 2. x-ray beam strikes the sensor 3. electronic charge is made producing image 4. image is digitized and viewed on computer. |
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which is more sensitive to radiation, Film or sensor? |
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Definition
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Roughly what percentage of exposure time is reduced with Digital Radiographs compared to E-Speed Film? |
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Definition
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Term
What is a CCD (charged Coupling Device)? |
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Definition
A solid silicon chip with an electronic circuit embedded in it. It is sensitive to X-rays or light. When the photons hit the CCD they cause electrons to be released from the silicone resulting in an electrical charge. A latent image is made of the receptor and then is digitized to the computer. |
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What is a digital sensor? |
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is a digital imaging receptor that is linked by a fiber optic cable to a computer. or the Digital imaging sensor is wireless, when it digitizes the image to a computer. |
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What is the patients benefit of digital radiographs? |
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Definition
that the Patient can see the images almost instantly so they understand better of what you are seeing. |
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what does the computer do when the pixels are sent from the sensor to the monitor? |
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Definition
the computer digitizes, processes, and stores the information. |
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How many seconds does it take the computer to read the image sent from the sensor? |
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Definition
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What is a health factor downfall to the sensor? |
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Definition
The digital sensor cannot be sterilized, only disinfected. |
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How is the sensor held in the mouth? |
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Definition
by a bite-block of sorts or devices such as the XCP that aim the beam to the sensor. |
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What are the advantages to Digital Radiography? |
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Definition
-reduced x-radiation exposure -super gray scale resolution -increase speed of viewing the image with or without the patient. -NO chemicals needed to process -increased the efficiency by staying in one room. -enhancement of diagnostic image -effective patient education tool |
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What are the disadvantages of digital radiography? |
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Definition
-initial set up cost - sensor size - infection control (cant sterilize sensor) |
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What does Quality refer to? |
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Definition
the Penetrating ability of the x-ray Beam. |
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What controls the quality? |
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Definition
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What determines the energy and penetrating ability of an x-ray beam? |
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Definition
The Wavelength: -Shorter= more penetrating -longer= less penetrating |
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What is Voltage? and what does it affect? |
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Definition
-Is the speed of the electrons. - how fast the electrons travel from cathode to anode. |
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How many volts equal one Kilovolt? |
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Definition
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What is the range of kV that Dental Radiography requires? |
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Definition
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What kV would be considered inadequate penetration? |
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What kV would be considered overpenetration? |
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Definition
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Term
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Definition
is the maximum or peak Voltage |
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If a Machine has a kVp of 90 how many volts does it have? |
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Definition
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When you increase kVp you are increasing the __________ of the x-ray beam? |
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Definition
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If all factors are constant and just the kV is altered what is affected int the image? |
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Definition
Increase kV= overall darker image density decrease kV= overall lighter image density |
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Term
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Definition
The overall Darkness of an image |
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What happens to the contrast when you increase the kVp? |
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Definition
Low contrast ( large gray scale ) |
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What happened to the kVp if the image has a lot of just blacks and whites? |
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Definition
The kVp was decreased resulting in a higher contrast image. |
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Definition
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what is an Example of a low kVp setting to create a high contrast film? |
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Definition
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What is an example of a high kVp to create a low contrast film? |
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Definition
greater than or equal to 90kVp |
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What happens to Density as kVp goes up or Down? |
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Definition
UP: kVp increases, Density increases Down: kVp decreases, Density Decreases |
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What is the only exposure factor that directly impacts contrast? |
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Definition
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what is another way to say impulses? |
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