Dentin Primary

Primary dentin: description and meaning

Primary dentin (dentin primarus) is the main layer of dentin, which is located inside the tooth and protects it from external influences. It is one of the components of dental tissue and contains collagen fibers, which give it strength and resistance to damage.

Primary dentin is formed as a result of the growth of various types of teeth. They grow faster in baby teeth than in permanent teeth, which explains the appearance of white stripes on the outer surface of baby teeth. These streaks form because primary dentin grows faster than the secondary, outer dentin that covers it.

Throughout a person's life