Tertiary dentin is also known as what?

Tertiary dentin is commonly referred to as reparative dentin. This type of dentin is formed in response to stimuli such as injury, cavity preparation, or the presence of caries. When the pulp is exposed to these stimuli, the odontoblasts become activated and produce this additional layer of dentin as a protective mechanism. It serves to shield the tooth pulp from further irritation or damage, highlighting its role in the body’s natural defense and healing processes.

Reparative dentin is characterized by a different structure compared to primary and secondary dentin, which are formed during the normal development of the tooth and do not typically respond to external stimuli. Understanding the distinction between these types of dentin is crucial for dental professionals as it informs treatment decisions and the management of tooth preservation.