Ionic exchange between enamel surface and environment______________?
Correct answer: D. Continues through out life
- A. Does not take place once enamel surface and invironment
- B. Stops after 2 years of eruption
- C. Continues till adult life
- D. Continues through out life
Explanation
After eruption, enamel continues to exchange ions with saliva and the oral environment throughout life. This ongoing exchange supports both remineralisation and susceptibility to demineralisation.
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