Calculus

Question 1

primary factor of calculus

Answer 1

dental plaque

Question 2

secondary factors of calculus which influence the disease or its progression

Answer 2

Local and systemic factors

e.g. smoking, diabetes

Question 3

What is calculs

Answer 3

calcified dental biofilm with mineral ions

Question 4

What does level and location of calculus deposits depend on

Answer 4

age, diet, ethnic origin, time since last s/p, OH at home, systemic disease and prescription medication

Question 5

Where is supragingival calculus found
What colour is it usually
What is its formation affected by
What is its % mineral content

Answer 5

above the gingival margin
creamy white colour
plaque pH and salivary flow rate
37%

Question 6

Where is subgingival calculus found?
What colour is it usually?
Where is it usually found?
What is its mineral content?

Answer 6

below the gingival margin
brown, black or dark green
interdental surfaces
58%

Question 7

Three main theories of calculus formation for are:
supragingival:
subgingival:
both:

Answer 7

the carbon dioxide theory
the ammonia theory
the seeding theory