Australian Dental Council (ADC) Practice Test

Question: 1 / 1390

What is a common outcome when fluoride is applied excessively?

Improved enamel strength

Extrinsic tooth staining

Excessive fluoride application can lead to extrinsic tooth staining, which is a common adverse effect. When fluoride is overapplied, it can disrupt the normal process of enamel formation and lead to conditions such as dental fluorosis. This condition may result in visible changes on the surface of the teeth, including staining and discoloration.

In terms of enamel strength and structure, while fluoride is beneficial in appropriate amounts for enhancing remineralization and increasing enamel resistance to decay, excessive fluoride does not produce these effects. Instead, it causes more harm than good, leading to alterations in tooth appearance and texture. Therefore, it's crucial to apply fluoride judiciously to avoid negative outcomes such as staining.

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Increased caries resistance

Reinforcement of enamel structure

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