California Registered Dental Assistant (RDA) Written Practice Exam

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What is the difference between filled and unfilled sealants regarding retention rates?

Filled has higher retention
Unfilled has higher retention
No difference
Unfilled are easier to apply

The correct answer is: No difference

The difference between filled and unfilled sealants regarding retention rates is that there is nom dissimilarity between the two. While the filled sealants may contain fillers such as glass, quartz, or other ceramic materials, and unfilled sealants do not, studies have shown that there is no significant difference in retention rates between the two types. This means that both filled and unfilled sealants are equally effective at staying in place and preventing tooth decay. Options A and B may be attractive choices, but they are not backed by evidence and therefore incorrect. Option D is also incorrect as it focuses on ease of application rather than retention rates. Overall, the difference lies in their composition, but not in their retention rates.