94021

If prematurity occurs in retruded contact position (RCP) on maxillary premolar, the surface of the tooth involved is the mesial of the lingual cusp.

52106

Cervical enamel projections (CEPs) are extensions of enamel towards the furcation. They are most frequently found on the buccal surface of mandibular first molars, followed by maxillary first molars.

50678

A dental instrument which creates aerosols containing a large number of microorganisms is the ultrasonic scaler.

90021

Explanation: Adrenaline (epinephrine) is commonly added to local anesthetics to prolong their effect and reduce bleeding in the area. It works by constricting blood vessels, which decreases the rate of absorption of the anesthetic into the bloodstream, thereby enhancing its duration of action.

89400

Bacillus anthracis is capsulated, which is a key feature of its virulence.

57123

Bell's palsy typically involves the entire side of the face, not just the lower part. The affected side may become asymmetric and motionless, with wrinkles disappearing from the forehead and an inability to close the eye completely. Impaired articulation of labial sounds is a common symptom due to the involvement of the facial muscles used for speech.

42501

The physiological capacity of the bladder is the maximum intravesical volume tolerated without undue discomfort. It is usually between 250 and 450 ml. The bladder can stretch to hold more urine, but this is considered beyond the normal physiological capacity and can cause discomfort.

38852

17058

Cobalt is the alloying element that decreases the hardenability of steel, but it can still sustain hardness during tempering

25456

The rubber dam is the gold standard for isolation in endodontics and vital pulp therapy as it ensures an aseptic field and prevents bacterial contamination from saliva.