Admission Test for Dental Hygiene (ATDH) Practice

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Prepare for the Admission Test for Dental Hygiene (ATDH) with our comprehensive quiz. Enhance your knowledge with questions covering all exam sections. Each question includes detailed explanations to aid your understanding and readiness for the exam.

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What is the recommended brushing duration for effective oral hygiene?

One minute
Two minutes
Three minutes
Five minutes

The correct answer is: Two minutes

Brushing for two minutes is widely recommended as it allows sufficient time to effectively clean all surfaces of the teeth, including the outer, inner, and chewing surfaces, as well as the gums. Research has shown that brushing for this duration enhances plaque removal and reduces the risk of tooth decay and gum disease. Brushing for less than two minutes, such as one minute, may not provide enough time for thorough cleaning, potentially leaving plaque and food particles on the teeth and gums. Conversely, while longer durations like three or five minutes might sound beneficial, they may lead to over-brushing or damage to the teeth and gums, particularly if excessive pressure is applied. Thus, two minutes balances effectiveness with the minimization of potential harm. This duration aligns with guidelines from dental health organizations that advocate for comprehensive oral hygiene practices.