70804

Henoch-Schonlein purpura (HSP) is a small-vessel vasculitis that is more common in children than in adults. It is characterized by symptoms such as abdominal pain, arthritis, and purpura (skin rash). The other options are typical manifestations of HSP.

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Explanation:

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Pellagra is a disease caused by a severe deficiency of niacin (vitamin B3). It is classically characterized by the "three Ds": dermatitis, diarrhea, and dementia. If left untreated, it can lead to death, the fourth "D". Dermatitis: A symmetrical skin rash often appears on areas exposed to sunlight. Diarrhea: Gastrointestinal issues are common. Dementia: Neurological symptoms can include confusion, disorientation, and memory loss.

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The patient is experiencing an acute adrenal crisis (Addisonian crisis) due to the abrupt discontinuation of corticosteroids used for Crohn's disease. This life-threatening condition requires immediate treatment with glucocorticoids, such as hydrocortisone, to replace the deficient hormones.

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• The primary purpose of Howe's Analysis is to assess the width of the dental arches and to identify any discrepancies between the maxillary (upper) and mandibular (lower) arches. This is particularly important in cases of malocclusion, where the alignment of the teeth and the relationship between the jaws may be compromised.

37925

Failure of a cast to seat properly on the cast during the restoration process can be due to various factors such as distortion during fabrication or changes in the cast material. To overcome this, the cast can be scraped with a sharp instrument to remove any excess material that may be preventing proper seating. Washing the casting with HCI (hydrochloric acid) may help to clean and smooth the surface, but it is not a common practice for this specific purpose. Forcefully positioning the casting can cause damage to the cast and is not recommended. If the discrepancy is more than 0.3 mm, it is generally advised to discard the cast and make a new one to ensure a precise and accurate fit.

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The AAPD and ADA recommend that a child's first dental visit occur by their first birthday or within six months of the first tooth erupting to establish a dental home and prevent early childhood caries.

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Mercury that complies with the requirements of the United States Pharmacopoeia also meets requirements for purity in ANSI/ADA Specification No. 6, which is typically 99.9% pure.

94357

Garre's osteomyelitis, also known as proliferative periostitis, is a rare type of chronic osteomyelitis. It is typically seen in children and young adults and is characterized by periosteal bone formation (onion-skin appearance) rather than the "moth-eaten" appearance seen in more aggressive or malignant conditions. The most common cause is dental infection.

95503

Chronic constitutional symptoms (fever, weight loss) and a strongly positive Mantoux test (>15mm) are highly suggestive of TB even if initial sputum smears are negative.