You feel discomfort and possibly pain when the dentist drills a hole in your tooth because the

A) heat of the drilling process is felt by the gum tissue.
B) pulp cavity contains nerves.
C) tooth decay has invaded the pulp cavity.
D) dentist is applying too much pressure to the drill.
E) decay has affected the dentin.

Pulp Cavity

The central part of a tooth containing the nerve and blood vessels, vital for the tooth's nutrition and sensitivity.

Tooth Decay

A condition where the structure of the tooth is damaged due to bacterial activity, leading to cavities or caries.

Dentin

The hard, dense, bony tissue that forms the bulk of a tooth beneath the enamel, providing its primary structure.