Author: Dr. Shawneen Gonzalez

DDS, MS, Diplomate ABOMR
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Case of the week: Mandibular Fracture

This week is a case of a single mandibular fracture.  I don’t have any history as to what caused this, just the radiograph. Note the vertical radiolucent line extending inferior from the mandibular left canine and lateral incisor region. If you  have any questions, please let me know. Thanks and…
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Attenuation: Compton Scatter

This post is the second method of scatter attenuation. Compton scatter (or Incoherent scatter) There are three main steps in compton scatter. 1. An incoming x ray photon interacts with an outer orbital electron. 2. The incoming x ray photon knocks the orbital electron out of it orbit (becoming a…
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Case of the week: Developing Distodens (supernumerary teeth)

This week is a neat case showing two distodens developing in the mandible.  Distodens are supernumerary teeth found in the molar region. Note distal to the mandibular left (developing) third molar is another follicle with the enamel evident.  On the patients right side, only the follicle is evident.  No calcified…
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Attenuation: Coherent Scatter

This post is the first of three involving methods of attenuation.  The first two posts will be on types of scatter; coherent scatter and compton scatter.  The last post will be on absorption; photoelectric effect.  These are physics topics and more likely apply to students as they are learning about…
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Case of the week: Internal Resorption on CBCT

This weeks case is a severe example of internal resorption as seen on cone beam CT.  Internal resorption presents as enlargement of the pulp chamber and/or root canal space. Reconstructed pantomograph (Metal in left  anterior mandible is due to previous reconstruction and mandibular fracture) Cross-sectional view (Note enlarged root canal…