Mechanisms of Tooth Demineralization and Remineralization
About This Event
This course (Caries Process, Prevention, and Management: Demineralization/Remineralization) examines the dynamic balance between demineralization and remineralization of tooth hard tissues. Topics include tooth enamel and dentin structure, bacterial acid production, the concept of critical pH (around pH 5.5) where enamel begins to dissolve, the role of acid-neutralizing bacteria and saliva buffering capacity, and the importance of fluoride and other factors that promote remineralization. The course is part of a comprehensive ten-course series revised with input from the American Academy of Cariology and provided by Procter & Gamble. Format: self-instructional. AGD Subject Code: 10. Course online date Jun 30, 2025; expiration Jun 29, 2028. Technical requirements: stable internet and up-to-date browser/device. Registration required to take test.
Learning Objectives
- Explain the differences in how tooth enamel and dentin structure are affected by demineralization.
- Describe the role of bacterial acid production in the demineralization process.
- Understand the concept of critical pH and its relationship to the onset of demineralization.
- Identify the five zones of carious dentin in an advanced lesion.
- Discuss how demineralization impacts different populations, including young children, the elderly, and other special populations.
- Be familiar with the factors that promote remineralization and their role in caries prevention.

