Which of the following statement is true regarding dental calculus:
- A. It is composed entirely of inorganic material.
- B. It is dens in nature and has a rough surface.
- C. It is mineralized dental plaque.
- D. All of the above.
- E. B & C only.
- F. None of the above.
The correct answer regarding dental calculus is: D. All of the above.
Here's why the other options are inaccurate:
A. It is composed entirely of inorganic material:
While dental calculus is primarily composed of inorganic components (70-90%), it also contains trace amounts of organic material like bacteria and cellular debris.
B. It is dens in nature and has a rough surface:
This statement is true. Dental calculus is hard and has a rough texture due to mineral deposits, making it feel like sandpaper on the teeth.
C. It is mineralized dental plaque:
This statement is also true. Dental calculus forms when plaque, a soft film of bacteria on the teeth, hardens due to the precipitation of minerals from saliva and gingival crevicular fluid.
E. B & C only:
While both B and C are true, option D encompasses all three aspects of dental calculus.
F. None of the above: As all three statements are true, this option is incorrect.
Therefore, considering all the characteristics of dental calculus, D. All of the above is the most accurate statement.
