43767

Pierre Robin syndrome is classically associated with micrognathia (underdeveloped mandible), which is part of the classic triad including micrognathia, glossoptosis (posterior displacement of tongue), and cleft palate. While cleft palate is part of the syndrome, cleft lip is not typically associated. Tetralogy of Fallot and syndactyly are not characteristic features of Pierre Robin syndrome.

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The retromolar pad should be covered by the lower denture.

79148

Leukemic gingivitis may be misdiagnosed as necrotizing ulcerative gingivitis.

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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.

38394

Spermatogenesis occurs in the seminiferous tubules of the male reproductive system, where sperm cells are produced and matured.

29084

Skeletal fluorosis is a chronic metabolic bone and joint disease caused by excessive intake of fluoride, typically through drinking water with high fluoride concentrations over many years. The condition usually develops when fluoride levels in drinking water are consistently in the range of 3-6 parts per million (ppm) or higher

83312

Cervical third root fractures have the least favorable prognosis. This is because: 1) The fracture line is at or near the gingival margin, making restoration difficult, 2) Contamination from oral fluids is inevitable, preventing proper healing, 3) Crown-root ratio becomes unfavorable even if healing occurs, 4) Periodontal involvement is common, 5) Often requires extraction due to poor long-term prognosis. Apical third fractures have the best prognosis as they often heal with fibrous union and remain functional, while middle third fractures have intermediate prognosis.

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Crohn's disease most commonly affects the distal ileum, which is the last part of the small intestine that connects to the large intestine.

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Needle breakage is a rare complication in local anesthesia, but it is most likely to occur during a mandibular nerve block (specifically, the inferior alveolar nerve block). This is because it involves a longer needle insertion into deeper tissues, closer to bone, increasing the risk of the patient suddenly moving or the needle bending and snapping at the hub.