DASLE 2023 MN Questions With Complete Solutions Ionization - Correct Answers ✅The production of ions, or the process of converting an atom into ions. Ions are positive, electrons are negative Structures that absorb x-rays are what? - Correct Answers ✅Radiopaque (white) Lingual foramen of the mandible - Correct Answers ✅...A small radiolucent dot inferior to the apices of the mandibular incisors. Below CENTRALS, appears as a small radiolucent circle directly inferior to the central incisors.Mental foramen of mandible bone - Correct Answers ✅Its the lateral aspect that allows nerves to pass to the chin and lip. holes in chin. appears as a round to oval radiolucent area seen near the apex of the second PREMOLAR.(blocked out in red on picture) Maxillary sinus - Correct Answers ✅sinus on either side of the nasal cavity below the eyes. The maxillary sinus appears as a radiolucent area superior and medial to the border of the maxillary sinus.Mental ridge - Correct Answers ✅A thick radiopaque band that extends from the premolar region to the incisor region.Appears as two oblique thick radiopaque bands that that 1 / 4
DASLE 2023 MN Questions With Complete Solutions meet in the midline giving it the appearance of an inverted V or triangle shape Incisive foramen - Correct Answers ✅appears as a round to ovoid radiolucent area between the roots of the maxillary central incisors.To change the magnification on a radiograph, you would increase/decrease - Correct Answers ✅Target Film Distance Tungsten target - Correct Answers ✅plate of tungsten, which serves as a focal spot and converts bombarding electrons into x-ray photons Lead diaphragm - Correct Answers ✅Restricts size of x-ray beam What type of extra oral x ray evaluates the patient's facial profile and soft tissue? - Correct Answers ✅Cephalomeric Primary radiation - Correct Answers ✅The most penetrating beam produced at the target of the anode Secondary radiation - Correct Answers ✅Less penetrating than primary radiation 2 / 4
DASLE 2023 MN Questions With Complete Solutions
Scatter radiation - Correct Answers ✅Secondary radiation:
commonly called scatter radiation, it is caused by interaction of the primary beam with objects in its path Density - Correct Answers ✅The overall darkness or blackness of an image Contrast - Correct Answers ✅the difference in brightness between the light and dark areas of an image High contrast - Correct Answers ✅many black and white areas, few shades of gray Low contrast - Correct Answers ✅many shades of gray Genetic radiation effects - Correct Answers ✅Not seen in patient, passed onto future generation Somatic radiation effects - Correct Answers ✅seen in the person irradiated (cancer, leukemia, cataracts), not passed onto future generations Roentgen (R) - Correct Answers ✅Amount of radiation in the air 3 / 4
DASLE 2023 MN Questions With Complete Solutions Radiation absorbed dose (Rad) - Correct Answers ✅the amount of radiation energy absorbed by a tissue Roentgen (REM) - Correct Answers ✅Biological effects Radiosensitive - Correct Answers ✅Blood cells, immature reproductive cells, young bone cells, small lymphatic *Most sensitive Critical organ - Correct Answers ✅if damaged, diminishes the quality of a person's life (skin, thyroid, lens of eye, bone marrow) How far do you stand from the tube head? - Correct Answers ✅6 ft ALARA stands for? - Correct Answers ✅As Low As Reasonably Achievable Lead apron - Correct Answers ✅Recommended for both intra-oral and extra-oral radiographs Thyroid collar - Correct Answers ✅Intra-oral X-rays only
- / 4