Dentin: Dentin is the layer beneath the enamel that provides support and absorbs shocks that could damage the inner parts of the tooth.
Pulp: The pulp is found at the core of a tooth, containing nerves and blood vessels that provide nutrients and sensory function.
Plaque: Plaque is a sticky film of bacteria and sugars on teeth that can erode enamel and lead to cavities if not removed through brushing and flossing