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What makes up the inverted Y?Inverted Y – The inverted Y is a radiographic landmark that depicts where the nasal fossa crosses the maxillary sinus. The boundary between them is shaped like an upside-down letter Y, hence its name.
What two structures make up the inverted Y quizlet?Remember the maxillary sinus appears as a radiolucent area above the maxillary posterior teeth. The term inverted Y refers to the intersection of the maxillary sinus and the nasal cavity/fossa, viewed on a maxillary canine dental image.
What is the arrow pointing to on your patient's dental image?The green arrows are pointing to the bone. The blue arrows are pointing to the healthy enamel. The red arrows are pointing to the pulp, where the nerve and blood vessels are located for a tooth. The dentin layer is between the enamel and the pulp.
Which of the following radiographic landmarks would appear radiolucent?Structures that are cavities, depressions or openings in bone such as a sinus, fossa, canal or foramen will allow x-rays to penetrate through them and expose the receptor. These areas will appear radiolucent or black on radiographic images.
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