42781

The biochemical abnormality associated with osteogenesis imperfecta is an increase in acid phosphatase.

42259

The most common type of mandibular third molar impaction is mesioangular,

63079

Central giant cell granuloma characteristically presents as a single lesion in a single bone, typically the mandible or maxilla. In contrast, osteopetrosis affects multiple bones (generalized marble bone disease), Pagets disease commonly affects multiple bones (though it can be monostotic), and polyostotic fibrous dysplasia by definition affects multiple bones. CGCG is a localized reactive lesion.

21142

61421

The primary purpose of rinsing the alginate impression in a watery mix of gypsum is to remove the residual saliva on the impression.

18958

Multiple radiolucencies are common in all of the following except osteopetrosis.

29733

The pacemaker of the heart is the SA (sinoatrial) node. Located in the right atrium, it generates spontaneous electrical impulses at 60-100 beats per minute, initiating each heartbeat. It has the highest intrinsic firing rate, making it the natural pacemaker.

57796

1. It is associated with platelet-specific autoantibodies: This statement is true. ITP is characterized by the presence of autoantibodies that specifically target and destroy platelets, leading to thrombocytopenia (low platelet count).

2. It causes a prolonged bleeding time: This statement is true. In ITP, the low platelet count results in a prolonged bleeding time, as there are fewer platelets available to form a clot.

3. It is often controllable by immunosuppressive treatment: This statement is true. ITP can often be managed with immunosuppressive therapies, such as corticosteroids, intravenous immunoglobulin (IVIG), or other immunosuppressive agents, to help increase platelet counts.

4. It causes more prolonged hemorrhage than hemophilia: This statement is not true. While both ITP and hemophilia can lead to bleeding, the mechanisms are different. Hemophilia is a clotting factor deficiency, which can lead to more severe and prolonged bleeding episodes, especially after trauma or surgery. In contrast, ITP primarily affects the number of platelets rather than the clotting factors. Therefore, the bleeding in hemophilia can be more severe and prolonged compared to that in ITP.

26969

Shiga-like toxins produced by EHEC bind to ribosomes in target cells, particularly endothelial cells, and inhibit protein synthesis. This leads to cell damage and contributes to the development of hemolytic uremic syndrome.

13714

The advantage of electrosurgery over blade for gingival tissue management is less hemorrhage.