Dentin Comes in Direct Contact with What Substance Above the Gum

question 21

Multiple Choice

Dentin comes in direct contact with what substance above the gum line?

• A) Enamel
• B) Cementum
• C) The periodontal membrane
• D) Both B and C

---

Definitions:

Symmetry

Symmetry in statistics refers to a situation where the two halves of a distribution mirror each other across a central point.

Modality

Refers to the manner or mode in which something exists or is experienced or expressed.

Normal Distributions

A symmetric probability distribution around the mean, demonstrating that frequencies decrease as distances from the mean increase.

Standard Normal Distribution

A probability distribution with a mean of 0 and a standard deviation of 1, often used in statistical analysis.