44080

Brown tumors are benign fibro-osseous lesions that occur in the context of hyperparathyroidism due to increased osteoclast activity and bone resorption. They are typically seen in areas of high bone turnover.

67106

Epithelial cells migrate rapidly to the root surface and form a new epithelial attachment via hemidesmosomes within approximately one week following periodontal surgery.

26897

The discoloration of amalgam restorations is often due to the formation of silver sulfide on the surface, which can occur due to the reaction of silver with sulfur compounds in the oral environment. The gamma I phase is a strong component of amalgam, while the gamma II phase is weaker and less stable. Oxides can form as well, but sulfides are more directly associated with the discoloration observed in clinical settings.

76069

Palatography is a technique used in phonetics and clinical assessment to study the articulation of speech sounds by recording tongue contact with the hard palate and teeth.

69306

Excessive vertical dimension may affect all of the above: encroaching the freeway space, proper centric relation, proper retention.

24191

46821

The Nikolsky sign is positive in conditions with intraepidermal acantholysis (e.g., Pemphigus Vulgaris, SSS, TEN). Bullous pemphigoid involves subepidermal blistering where the entire epidermis lifts off the dermis, hence Nikolsky sign is typically negative.

14328

Toxic dosage of lignocaine with adrenaline is 5 mg/kg body weight.

24058

The enamel in primary teeth often has an aprismatic and wavy orientation, which necessitates a longer etching time to achieve proper bonding.

75094

Muscle cells are the most radioresistant cells.