How Pulp Chambers Work
Before we discuss how pulp chambers work, it helps to know where it fits within the tooth structure. If you visualize the cross-section of a tooth, it looks like a casing system with natural layers. According to the American Dental Association, the hard enamel on the tooth’s surface helps break down food to support digestion and protect the tooth during use. Below, the softer dentin helps absorb pressure from eating and acts as a support for the enamel. In the middle of the tooth below the dentin is the pulp chamber—which houses nerves and blood vessels and provides nourishment to the tooth. So if you’re wondering, what is the pulp of the tooth, now you know! Finally, covering the root of the tooth is cementum, which connects a tooth to the jawbones.
In other words, you can think of the pulp chamber as the heart of the tooth, as blood flow through the area keeps the pulp and nerve healthy. According to StatPearls, the pulp has four main functions: formation of the dentin, nutrition of the dentin, innervation of the tooth, and defense of the tooth. The most important role is the formation and nutrition of the dentin, as the dentin protects the tooth from decay and cavities. The pulp mediates this role by producing hard dentin tissue. If the pulp chamber is compromised, your dental professional’s primary concern is saving this area to keep your tooth alive.