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21 Cards in this Set
- Front
- Back
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Teeth consist of what?
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Enamel, Dentin, Pulp and Cementum
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Where is cervical burnout and what causes it on the film?
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Radioluscent areas at the neck of the tooth which can be confused for root caries
Caused by more interaction on the film with the rays around the CEJ |
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Where is the Apical foramen?
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Seen on the film as the very tip of the apex of the root
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What is the Lamina Dura?
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The radiopaque line that is seen surrounding the root of the tooth
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What is the PDL on the Radiograph?
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The space that is radiolucent between the lamina dura and the tooth itself
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Can the Lamina Dura appearance Vary?
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Yes, according to exposure parameters and technique
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What is the average normal level of crestal alveolar bone in a radiograph?
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1.5 to 2 mm from the CEJ
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What are Trabeculae?
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The small spaces in bone which hold the marrow
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What must the government show in order to deny public employment and bar membership based on someone’s group affiliation? (2)
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What must the government show in order to deny public employment and bar membership based on someone’s group affiliation?
Must show that the person: [1] is a knowing (scienter) and active (dues-paying) member of subversive group, and [2] has the specific intent to further the group’s unlawful objectives. |
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What are the characteristics of the trabeculae of the posterior mandible?
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larger bone marrow spaces, mainly horizontally oriented trabeculae,
area just below molar roots to inferior border of mandible may be devoid of trabeculae |
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What are the characteristics of the trabeculae of the Anterior Maxilla?
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thin and numerous
trabeculae forming: a fine, rounded, dense pattern smaller bone marrow spaces |
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What are the characteristics of the trabeculae of the Posterior Maxilla?
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Similar to Anterior but larger bone marrow spaces
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What is a normal variant that is associated with a diastema?
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Ant. Median Maxillary Cleft
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What is characterized as an ill-defined radiolucency on a max. canine film
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lateral fossa or incisive fossa
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What is most likely seen on a Max Canine film?
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The Inverted "Y" showing the lateral wall of the nasal fossa and the ant. border of the max. sinus
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What occurs in the Pneumatization of the maxillary sinus?
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Downward extension of the max. sinus due to tooth loss or aging
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What is the nasolabial fold?
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Soft tissue that extends from the ala of the nose to the corner of the lip
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How can you see the inferior border of the mandible in radiography?
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With over angulation
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What defines the Genial tubercles
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-Located on lingual side of body of the mandible
-Paired bony prominences, doughnut shaped RO in midline -Lingual foramen is in the center -Genioglossus & geniohyoid muscle attachment |
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Where is the mental foramen generally found on the film
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Usually between the man. canine and the second premolar
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What do nutrient canals contain and why are they present?
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Contain blood vessels & nerves to supply the interdental bone, teeth &
gingival tissue Due to chronic inflammation of the teeth and gingiva |
