55548

The following factors play a role and cause variations in susceptibility of sensory nerve fibers to local anaesthesia: diameter of the nerve fiber, distance between nodes of Ranvier, and length of nerve fiber.

54404

In a young patient with immature root development and vital pulp exposure, pulpotomy preserves radicular pulp vitality allowing continued root development (apexogenesis). Pulpectomy would halt root formation.

62641

A window-shaped alveolar defect on labial alveolar bone is called fenestration.

15323

 A hemiseptum refers to a periodontal defect with only one wall remaining, often seen in sites of periodontal bone loss.

96291

12455

The straight elevator is properly used to advantage when the interdental bone is used as a fulcrum. This is because the straight elevator can be inserted into the periodontal ligament space along the long axis of the tooth, and when levered against the interdental bone, it helps in lifting the tooth from the socket. Using the adjacent tooth as a fulcrum can potentially damage it.

91614

The bonding in porcelain fused to metal (PFM) restorations is achieved through a combination of both chemical and mechanical mechanisms. 

48975

Beta titanium wire is most suitable for final tooth adjustments due to its low modulus of elasticity, allowing precise and gentle force application.

88880

Hypoglycaemia may occur in a patient taking insulin and undergoing extraction when the procedure is done on an empty stomach. This is because insulin lowers blood sugar levels, and without food to balance the insulin's effect, the patient could experience a dangerous drop in blood glucose. It is important to ensure that the patient eats before the surgery and that glucose levels are monitored.

45407

The gingival bevel in a class II mesio-occlusal inlay preparation is typically placed at an angle of 30-40 degrees to the gingival wall to provide mechanical retention and seal the margin effectively.