59697

For a class V gold restoration, the mesial and distal cavity margins should end at the line angles of the tooth to ensure proper adaptation and prevent overhangs. This is important for both functional and aesthetic reasons

93302

Plummer-Vinson syndrome is strongly associated with post-cricoid carcinoma and esophageal web formation. It is due to iron deficiency (not folic acid), is more common in females (especially middle-aged women), and IS associated with oral premalignant lesions and increased risk of upper digestive tract malignancies. The syndrome represents a premalignant condition with significant cancer risk, particularly in the post-cricoid region.

77904

Reiter's syndrome is characterized by the classic triad of acute arthritis, conjunctivitis, and urethritis, often following a genitourinary or gastrointestinal infection.

11363

Analgesics should be administered before the effect of local anesthesia wears off (preemptive analgesia). This approach prevents the establishment of pain pathways and provides better pain control than waiting for pain to occur. It ensures patient comfort during the transition from anesthetic effect.

59051

A wax pattern made in the mouth will shrink appreciably as it is cooled to room temperature because the coefficient of  thermal expansion of wax is very high.(This  is the property which describes the thermal energy transport in watts per second through a specimen 1cm thick with a cross sectional area of 1 cm² when the temperature differential between the surfaces of the specimen perpendicular to the heat flow 1⁰ K)  Co efficient of thermal expansion is defined  as the change in length  per unit of the original length  of a material when its temperature is raised 1⁰K.

69191

Envelope flaps limit access to the operative site and often heal with scar formation due to inadequate blood supply at the incision line. Triangular and rectangular flaps provide better access and healing.

62337

The PMA index measures the severity of gingivitis and periodontitis.

99341

67075

A periodontal pocket of 6 mm deep lying coronal to the junctional epithelium is a pseudo pocket.

77168

In orthodontics, pitch refers to rotation around the transverse (side-to-side) axis, leading to an upward or downward rotation of the jaws or occlusal plane, which alters the vertical dimension.