Summary – What is the Peripheral Seal Zone (PSZ)?
The Peripheral Seal Zone (PSZ) is defined as the 2-3 mm of tooth structure (enamel, DEJ, and superficial dentin) in which complete caries and crack removal is indicated. The DEJ is identified and complete caries and crack removal should be carried out 1-2 mm inside of the position of the DEJ.
Caries Removal Endpoints (CRE) should be used to achieve partial removal of caries in deeper areas over the pulp within the Central Stop Zone (CSZ), in order to avoid pulp exposure.
To learn more about the Peripheral Seal Zone concept in relation to Caries Removal Endpoints and the use of Caries Detector Dye, see Lesson 1 of the Six Lessons Approach to Biomimetic Dentistry below.