69127

This statement is untrue - carbopol is not typically used in home bleaching systems. Home bleaching uses 10-15% carbamide peroxide in a gel form with custom vacuum-formed trays.

81586

Amoebic dysentery is characterized by more than 10 motions a day and the presence of Charcot-Leyden crystals.

36496

The wavelength of X-ray photon depends upon kilo voltage.

The wavelength of X-rays is inversely proportional to their energy, and the energy of X-ray photons is determined by the kilo voltage (kV) used in the X-ray tube. Higher kV results in higher energy and shorter wavelength photons, which are more penetrating and are used for imaging denser tissues, while lower kV results in lower energy and longer wavelength photons, which are less penetrating and are used for imaging softer tissues. The other factors mentioned (milli amperage, distance between source and object, and quantity of electrons in the cathodic stream) affect the intensity of the X-ray beam but not the wavelength of the photons.

54637

The most important modification of amalgam restorations on primary teeth is cavity preparation (Answer: 2). Unlike permanent teeth, primary teeth have a thinner enamel layer and a larger pulp chamber relative to their size. Therefore, the cavity preparation must be done with caution to avoid pulp exposure and ensure the longevity of the restoration.

74612

38760

Bile salts are involved in the emulsification and absorption of fat, not in neutralizing stomach acid.

65676

The pH of resin cements is usually slightly acidic after mixing, subject to variation in formulation.

89279

The most common site of venous thrombosis in patients with cancer is the deep veins of the lower extremities, often referred to as deep vein thrombosis (DVT). This is due to a combination of factors such as immobility, cancer-induced hypercoagulability, and damage to the vessels from tumor infiltration or surgery.

64889

The first direction for force application with extraction forceps is apically. This initial apical pressure helps to expand the alveolar socket and break the periodontal ligament fibers. After apical pressure, buccal and lingual movements are applied to complete the extraction.

19422

Fibrous ankylosis is the most common complication of rheumatoid arthritis involving the TMJ. RA causes chronic synovitis, leading to destruction of articular cartilage and subchondral bone. This inflammatory process results in scar tissue formation and fibrous adhesions between articular surfaces, causing restricted mouth opening. While condylar resorption may occur, fibrous ankylosis is more frequent and characteristic of RA progression.