The Histologic Sulcus Depth in Healthy Gingiva Is Approximately

question 20

Multiple Choice

The histologic sulcus depth in healthy gingiva is approximately:

• A) 1 to 3 mm
• B) 2 to 5 mm
• C) 3 to 4 mm
• D) 3 to 5 mm

---

Definitions:

Fixed-interval

In operant conditioning, a schedule of reinforcement where the first response is rewarded only after a specified amount of time has elapsed.

Variable-ratio

A reinforcement schedule in operant conditioning where a response is reinforced after an unpredictable number of responses, enhancing the robustness of the behavior.

Variable-ratio

A schedule of reinforcement where a response is reinforced after an unpredictable number of responses, leading to a high and steady response rate.

Fixed-ratio

A schedule of reinforcement where a response is reinforced only after a specified number of responses, often used in behavior analysis.