**Question:** The normal biting force in natural dentition and complete denture is

A. 100 N
B. 200 N
C. 250-300 N
D. 500 N

**Correct Answer:** C. 250-300 N

**Core Concept:** Biting force refers to the force exerted during mastication, which is essential for grinding food, breaking it into smaller pieces, and preparing it for swallowing. This force is influenced by various factors, including dental arch form, muscle strength, and dental occlusion.

**Why the Correct Answer is Right:** The normal biting force in both natural dentition (undamaged teeth) and complete denture (artificial teeth) ranges between 250-300 Newton (N), which is a unit of force. This range is considered adequate for efficient food processing and mastication.

**Why Each Wrong Option is Incorrect:**

A. 100 N: This option is too low, as a minimal biting force of 250 N is required for normal masticatory function.
B. 200 N: This option is also too low, similar to option A.
D. 500 N: This option is too high, potentially causing excessive stress on the soft tissues and joints involved in mastication.

**Why Option C is Right:** A biting force range of 250-300 N is considered appropriate for normal mastication, as it allows for efficient grinding and breaking down food, while minimizing potential damage to the teeth, gums, and TMJs (temporomandibular joint).

**Clinical Pearl:** Understanding the appropriate biting force range helps healthcare professionals in assessing patients' masticatory function, diagnosing any imbalances or abnormalities, and providing appropriate interventions, such as recommending denture adjustments or recommending dental restorations for patients with compromised dental health.