RHS Study guides, Class notes & Summaries

RHS Chapter 16 Review Questions and Answers All Correct Identify the names, charges, masses and locations of the three types of subatomic particles that make up an atom? - Answer-Proton(+)- Nucleus, 1 amu Neutron(0)- Nucleus, 1 amu Electrons(-)- Electron Cloud, 0 amu Determine the mass number and atomic number of a chlorine atom that has 17 protons and 18 neutrons? - Answer-Atomic number-17 Mass number-35 Explain why the atomic mass of an element is a weighted average mass? - AnswerTh...

RHS Exam Questions with Correct Answers which term describes the white area on the processed radiograph - Answer-radiopaque subject contrast is affected by - Answer-crystal size which term is best described the amount of light transmitted through a film - Answerpenetration which factor has the greatest effect on film sharpness - Answer-kilovoltage Distortion is caused when - Answer-using a short object film distance the dental radiograph will appear later if one increases the - Answer-k...

RHS 2024 Exam Questions with Correct Answers Ideal temp for xray development solution - Answer-68 degrees Incorrect horizontal angulation - Answer-overlap/superimposition earliest sign of skin exposure to radiation - Answer-erythema recommended collimation of primary beam at pt's skin surface - Answer-2.75 lead diaphram - Answer-collimator filter - Answer-aluminum disk most effective way to reduce exposure to genetic tissue - Answer-lead apron most radiolucent structure of teeth - An...

What are the 3 components to an X-ray Machine? - control panel, extension arm, tubehead What does a control panel contain? - 1) master switch, indicator light 2) exposure button, indicator light 3) control devices (kV, mA, time) What is the purpose of an extension arm? - houses the electrical wires that extend from the control panel to the tubehead and allows for movement/positioning of the tubehead What is a tubehead? - tightly sealed, heavy metal housing that contains the x-ray tube that...

Describe purpose of radiographic images - X Rays are used to see parts of the tooth that you cannot see with the naked eye, diagnose, treatment planning, insurance purposes. Periapical - This is an intraoral x-ray. The most diagnostic X-ray and it shows the entire tooth. Bitewing - This is an intraoral x-ray. Used to check for decay on interproximal surfaces. Only used on posterior teeth. Full mouth series - This is a full set of x-rays which include, 8 posterior PA'S, 6 anterior PA'S, an...

What are the advantages of Digital Imaging? - No film or processing solution, less exposure to the patient The anterior wall of the sinus and lateral wall of the nose form; - Inverted Y As the target to film distance is increased, Will there be more or less distortion? - Less The basic unit for measuring ionizing radiation exposure in the air known as - Roentgen What is the best film to view lingual or buccal caries? - Occlusal What is the best film to use on an edentulous patient? - Pano ...

Which is a measurement of tissue damage from x-ray energy? - Radiation absorbed dose To help desensitize the tissue prior to fil placement, the dental assistant should do what? - Rub a finger along the tissues where the film touches. What is the primary function of collimation? - To restrict the size of the beam. Added filtration in the x-ray tubehead protects what? - The Patient. To prevent cross-contamination, wipe the counter top with what? - An EPA-approved disinfectant. Patients recei...

Which of the following radiolucent landmarks is useful when mounting films in the mandibular anterior area? - Lingual Foramen According to the inverse square law, when changing the PID length from 8 to 16 inches, the beam's intensity is - 1/4 as intense Patients should wear a thyroid collar during which type of radiographic exposure? - Intraoral radiograph Personnel radiation monitoring devices are worn to - Record the occupational exposure received by the operator The most common radio...

If there are no teeth to serve as guides, which of the following landmarks indicates a maxillary molar area radiograph? A. Mental foramen B. Incisive foramen C. Internal oblique ridge D. Tuberosity : D. Tuberosity The American Dental Association recommends that radiographs be mounted with the embossed dots A. at the apices. B. on the occlusal surface. C. towards the center. D. all facing in the same direction. : D. all facing in the same direction. 2 | P a g e When executing a ...

What are the 3 components to an X-ray Machine? - control panel, extension arm, tubehead What does a control panel contain? - 1) master switch, indicator light 2) exposure button, indicator light 3) control devices (kV, mA, time) What is the purpose of an extension arm? - houses the electrical wires that extend from the control panel to the tubehead and allows for movement/positioning of the tubehead What is a tubehead? - tightly sealed, heavy metal housing that contains the x-ray tube that...