MDS PREP
What is the role of the sodium-calcium exchanger (NCX) in calcium homeostasis?
1) It transports calcium into cells
2) It transports sodium into cells and calcium out of cells
3) It transports sodium out of cells and calcium into cells
4) It has no role in calcium homeostasis
The sodium-calcium exchanger (NCX) transports sodium into cells and calcium out of cells, playing a crucial role in calcium homeostasis.
Instrument that detect pit and fissure caries is
1) Probe
2) Pigtail (curved cow horn)
3) Sickle scalar
4) Shepard"s crook
Conservative Dentistry
Answer: 4
What is the significance of the transport maximum for substances like glucose and phosphate?
1) It indicates the maximum amount that can be filtered by the glomerulus
2) It represents the maximum amount that can be actively reabsorbed by the tubules
3) It is the point at which the substance begins to be excreted in the urine
4) It is the point at which the substance becomes toxic to the body
The transport maximum for substances like glucose and phosphate represents the maximum amount that can be actively reabsorbed by the tubules before reaching saturation and being excreted in urine.
The maxillary teeth if placed too far anteriorly and superiorly in a complete denture results in the faulty pronunciation of
1. F and V sounds
2. S and T sounds
3. Vowels
4. Consonants
Prosthodontics
Answer: 1
Giromatic hand piece operates
1. 360 degrees
2. 90 degrees reciprocating
3. Up and down
4. Side to side
After an amalgam restoration has been carved, it is important to lightly
burnish the surface because burnishing
1. moves the amalgam in such a way as to fill in voids and submarginal areas
2. changes the contour of the restoration
3. increases the amalgam’s resistance to corrosion
4. contributes a dull luster to the surface
Dental Material
Answer: 3
After an amalgam restoration has been carved, it is important to lightly burnish the surface because burnishing increases the amalgam’s resistance to corrosion