Dr. Shawneen Gonzalez – Page 61

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Radiation Physics

All about attenuation of x rays

Attenuation is when the quantity of x rays is reduced by either absorption or scatter as it travels through matter. Absorption is when x ray photons ionize atoms and transfer its energy to electrons (i.e. photoelectric effect). Scattering is when the x ray photons are ejected out of the primary…

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Case of the week

Case of the week: Third Molar in Maxillary Sinus

This weeks case topic is an interesting finding of a maxillary third molar developing in the maxillary sinus adjacent to a supernumerary tooth on a CBCT scan. Interpretation: This case shows a mixed radiolucent/radiopaque entity in the right maxillary sinus. The radiopacity is that of tooth structure. The appearance is…

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Radiographic Interpretation

How was that missed? (Periapical / Radicular cyst)

Being that the two previous posts on radiographic entities either looked over or misdiagnosed created quite a few comments and questions, I have decided to make this a more regular series. The plan (as of now) is to post once a month on the first Wednesday of the month. This…

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Radiographic Technique: Mandibular Occlusal Radiographs

This is the second and last post on occlusal technique. For a refresher on basic occlusal technique go here. Mandibular Occlusal Radiographs Mandibular Anterior The mandibular anterior occlusal radiograph is frequently made on both adults and children. On adults, it is made with a size 4 film/phosphor plate with the…

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Case of the week

Case of the week: Normal pantomograph imaging mimicking disease

This week I wanted to show an area on pantomographs that I am frequently asked about. The area I am talking about is the radiolucent area as noted by the yellow areas inferior to the mandibular posterior teeth. This area is typically where an observers eye are drawn due to…