The Acid Brush Bleaching Technique Is Used Most Often for Which

question 27

Multiple Choice

The acid brush bleaching technique is used most often for which stain?

• A) coffee
• B) tea
• C) tobacco
• D) tetracycline

---

Definitions:

Cross-Sectional Design

A research design in which individuals of various ages are studied at the same time.

Cohort Differences

Variations in characteristics, experiences, or outcomes among groups of individuals born in different time periods, often studied in sociological and psychological research.

Longitudinal Studies

Research methods that observe the same subjects over a period of time, allowing for the examination of changes and development.

Positively Correlated

A relationship between two variables where an increase in one variable is associated with an increase in the other, indicating a direct relationship.