It contains connective tissue, blood vessels, and sensory nerves. Pulpitis - Inflammation of the pulp. Periodontal Ligament - this structure is a series of microscopic fibers connecting the root of the tooth to the jawbone. It has very sensitive nerves designed to sense both pressure and pain. Caries - Tooth decay.
Caries is an infection of the tooth caused by specific bacteria.
It is what you see in the mouth. Enamel is lighter in color than dentin. Dentin - The hard part of the tooth below the enamel which surrounds the pulp chamber, most of the tooth is dentin. Dentin is darker in color than enamel. It appears in the mouth as a somewhat darker or more yellowish part of the tooth between the gum and enamel.