29493

Indicators for Class II activator include mandibular retrusion, horizontal/anterior mandibular growth, and upright lower anteriors. Crowding in lower anteriors is not a specific indicator for its use.

86816

Submentovertex is useful in viewing all of the above: body of mandible, fractures of zygomatic arch, fractures of base of skull.

81945

While guiding planes are the primary elements that dictate the path of insertion and removal, the minor connector also plays a role. The minor connector helps in the overall stability and retention of the RPD by linking the major connector to the abutment tooth and distributing the forces more evenly across the denture base. However, its primary function is not to guide the path of insertion and removal as much as it is to provide additional support and strength to the RPD.

79599

The average depth of corrosion for most amalgam alloys is 100 to 500 µm.

16561

When a patient closes in centric occlusion, if the lower jaw is placed anteriorly in relation to the upper jaw, it is called pre-normal occlusion.

94744

Chronic hyperplastic candidiasis is distinct because it forms firm, persistent white plaques that cannot be easily wiped off with a gauze. Crucially, these lesions have the potential for epithelial dysplasia and malignant transformation, which is a key differentiating feature from other more common, easily removable forms of oral candidiasis like pseudomembranous candidiasis..

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.

12956

Double contrast phase contrast arthroscopy is used to study the joint space.

27134

The first and most critical sign of a complete respiratory obstruction is the body's attempt to breathe against the blockage. This effort leads to significant negative pressure in the chest cavity, causing the soft tissues between the ribs (intercostal spaces) and above the collarbones (supraclavicular spaces) to visibly sink inward or retract during inspiration.

61687

The critical pH is the point at which the enamel of a tooth begins to demineralize, leading to the formation of cavities. This process is typically associated with a pH range of 3.5-5.5.