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Question 1 of 5
1. Question
The dentist consulted with an oral and maxillofacial radiologist. He evaluated the panoramic film and provided an interpretation report. The following paragraph is from the report:
Normal-appearing crowns are observed. However, a complete obliteration of the pulp chamber and no root formation is present in all the teeth including primary and adult teeth. No bone lesions. No periapical lesions are observed. Temporomandibular joints within the range of normal.
Considering the radiology report, what is the most likely diagnosis?
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Question 2 of 5
2. Question
With the diagnosis of dentin dysplasia type I, the pediatric dentist decided to consult with a medical geneticist for further evaluation.
Dentin dysplasia type I is a common condition that affects primary and adult dentition.
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Question 3 of 5
3. Question
Regarding histology, in dentin dysplasia type I, the enamel appears normal while deeper layers of dentin show atypical tubular patterns with amorphous, atubular areas and irregular organization.
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Question 4 of 5
4. Question
Dentin dysplasia type I is an unusual autosomal dominant hereditary pathology in the dentin formation affecting the primary or both dentitions.
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Question 5 of 5
5. Question
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History: An 8-year-old boy was taken to a pediatric dentist’s office. He was referred by a general dentist because of generalized and progressive tooth mobility.
The boy’s past medical history was remarkable for attention deficit hyperactivity disorder (ADHD). No allergies were reported, and the patient had no history of trauma.
The extraoral exam was within the range of normal, with no skin lesions. The intraoral exam revealed several missing teeth and generalized moderate to severe mobility.
The dentist ordered a panoramic film, which is shown below, along with a cropped version of the left mandible. Click to enlarge the images.
What is the most likely preliminary diagnosis?
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