17593

Pulp necrosis is an almost universal consequence of intrusive luxation because the neurovascular bundle is severed. Immediate prophylactic endodontic treatment is indicated for intruded permanent teeth with closed apices to prevent inflammatory root resorption.

74041

Pernicious anemia (vitamin B12 deficiency) is associated with neurological symptoms including peripheral neuropathy, subacute combined degeneration of the spinal cord, and demyelination. Premature graying of hair is also a characteristic feature due to B12s role in melanin synthesis. Folic acid deficiency causes megaloblastic anemia but not neurological symptoms. Plummer-Vinson and Paterson-Kelly syndromes are iron deficiency-related conditions without these specific manifestations.

13572

Koplik spots are first manifestation but seldom seen.

Koplik spots are small, white spots with a bluish-white color that appear on the inside of the cheek opposite the molars in individuals with measles. They are considered a pathognomonic sign of measles and typically appear 2-3 days before the onset of the characteristic skin rash. However, they are not commonly observed in all cases, making them a less frequently seen early manifestation of the disease. They are small and can be easily overlooked or mistaken for other oral conditions.

51570

Cervical rib usually arises from the 7th cervical vertebra. It represents an anomalous extra rib arising from the transverse process of C7. This congenital abnormality can cause thoracic outlet syndrome by compressing neurovascular structures in the thoracic outlet.

63266

The relationship between zinc concentration and setting expansion is not specified in the given text. However, the presence of zinc in amalgams can affect the rate and extent of setting.

41668

The main aim of restoration of carious lesions in phase-I therapy is to reduce microbial source.

39387

40384

Widening of the oral aperture is not an oral diagnostic feature of scleroderma.

46333

Thrombocytopenia is not a feature of intravascular hemolysis; it is more commonly associated with other conditions such as bone marrow disorders.

50957

Necrosis causes gingival recession, so attachment loss occurs without pocket formation.