85624

The CPITN (Community Periodontal Index of Treatment Needs) probe has a ball-ended periodontal probe with a diameter of 0.5 mm. The markings at 3.5, 5.5, 8.5, and 11 mm are used to assess the depth of the periodontal pockets in the gingival sulcus. This probe is designed to evaluate the periodontal health and treatment needs of a community and is commonly used in epidemiological studies.

33809

A white blood cell count of more than 100,000 cells/cc indicates leukemia.

67777

99460

Streptococcus viridans is characterized by non-capsulated, round to oval cells in chains and has a negative oxidase reaction.

68747

Medullary carcinoma of the thyroid (MTC) originates from the parafollicular C cells of the thyroid gland, which are responsible for producing the hormone calcitonin. Therefore, increased calcitonin secretion is a key characteristic and diagnostic marker for this specific type of thyroid malignancy.

13836

Letterer-Siwe disease is a disturbance of lipid metabolism.

35540

The most generally accepted treatment of horizontal root fracture in the apical third of a maxillary central incisor involves frequent pulp testing and radiographic examination (monitoring approach). This conservative approach is preferred because: 1) Apical third fractures have excellent prognosis for natural healing, 2) Pulp often remains vital and functional, 3) Splinting may not be necessary as the fracture is inherently stable, 4) Regular monitoring allows early intervention if complications arise, 5) Surgical intervention or extraction is rarely needed. The healing usually occurs with fibrous tissue union.

23719

40129

Peutz-Jeghers syndrome (PJS) is a rare genetic disorder characterized by the development of noncancerous growths (hamartomatous polyps) in the gastrointestinal tract and pigmented spots (melanosis) on the lips (perioral), mouth, fingers, and soles of the feet. Individuals with PJS have a significantly increased risk of developing various cancers, including breast, intestinal, pancreatic, ovarian, and lung cancers.

87912

Using "B" film, exposure of 1 R will be reduced to 1/4 R when "D" film is used.