Which of the following statements about dental caries is FALSE?

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They are contagious and can be spread between individuals.They are not caused by microbial activity.They may form even without the presence of sucrose.Microorganisms are the primary contributors to their development.They result from the interaction of bacteria and dietary factors.

Explanation

Dental caries are infectious and transmissible conditions caused primarily by microorganisms. They can develop even without sucrose, as other dietary factors contribute. Therefore, the statement that caries are not caused by microorganisms is incorrect.