Questions and Answers
Which teeth require the visibility of the entire crown and root, including the apex and surrounding structures?
Maxillary Central Incisors
Which teeth require the visibility of the interproximal alveolar bone and mesial contact?
Maxillary Canine
Which teeth require the visibility of the contacts between adjacent teeth?
Maxillary Premolars
Which teeth must be visible in a radiograph of the maxillary molars?
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Which teeth must be visible in a radiograph of the mandibular premolars?
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What is the recommended size of receptors for anterior teeth?
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What modification in technique is necessary when the lack of parallelism between the receptor and the long axis of the tooth exceeds 20 degrees?
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Which tooth requires the visibility of the distal contact of the maxillary canine?
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Which teeth require the visibility of the interproximal alveolar bone and mesial contact?
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Which teeth must be visible in a radiograph of the mandibular incisors?
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Which teeth require the visibility of the distal contact of the mandibular second premolar in a radiograph?
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What is the recommended size of receptors for posterior teeth in dental radiography?
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What modification in technique is necessary when the lack of parallelism between the receptor and the long axis of the tooth exceeds 20 degrees?
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What should be done when using the paralleling technique with a patient who has a shallow palate?
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Which tooth requires the visibility of the distal contact of the maxillary canine in a radiograph?
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Which teeth require the visibility of the contacts between adjacent teeth in a radiograph?
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Which teeth must be visible in a radiograph of the maxillary molars?
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Which of the following is a modification in technique for patients with a shallow palate in dental radiography?
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What is the correct placement of the receptor for a maxillary torus in dental radiography?
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Where should the receptor be placed to avoid impinging on muscle attachments and sensitive soft tissues in the floor of the mouth area?
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What is the primary advantage of the paralleling technique in dental radiography?
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Study Notes
Dental Radiography
- Maxillary molars require the visibility of the entire crown and root, including the apex and surrounding structures.
- Anterior teeth require the visibility of the interproximal alveolar bone and mesial contact.
- Adjacent teeth require the visibility of contacts between them.
- Mandibular premolars require the visibility of the entire crown and root, including the apex and surrounding structures.
- Recommended size of receptors for anterior teeth is size 0 or 1.
- Recommended size of receptors for posterior teeth is size 2 or 3.
Technique Modifications
- When the lack of parallelism between the receptor and the long axis of the tooth exceeds 20 degrees, the technique modification necessary is to angle the receptor to match the tooth's long axis.
- For patients with a shallow palate, the modification in technique is to place the receptor more posteriorly to avoid discomfort.
Radiograph Visibility
- Maxillary canines require the visibility of the distal contact.
- Mandibular second premolars require the visibility of the distal contact.
- Mandibular incisors require the visibility of the entire crown and root, including the apex and surrounding structures.
Paralleling Technique
- The primary advantage of the paralleling technique is that it provides accurate and undistorted images.
- When using the paralleling technique with a patient who has a shallow palate, the receptor should be placed more posteriorly to avoid discomfort.
- For a maxillary torus, the correct placement of the receptor is more anteriorly and superiorly to the torus.
- To avoid impinging on muscle attachments and sensitive soft tissues in the floor of the mouth area, the receptor should be placed more superiorly.
