National Dental Assisting Examining Board (NDAEB) Practice Exam

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Prepare for the National Dental Assisting Exam with comprehensive quiz questions, including multiple choice and detailed explanations. Equip yourself for success!

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What is the first step in the placement of dental sealants?

Apply fluoride treatment
Clean the surface
Mix the sealant material
Apply disclosing solution

The correct answer is: Clean the surface

The first step in the placement of dental sealants is to clean the surface. This is crucial because it helps to remove any debris, plaque, or biofilm that may be present on the tooth surface. A clean surface ensures that the sealant adheres properly to the enamel, which is essential for its effectiveness in preventing caries. If the tooth surface is not adequately cleaned, it can hinder the bonding process and reduce the longevity of the sealant. Proper cleaning typically involves the use of an air-water syringe to rinse the area, a toothbrush or scaler for mechanical cleaning, and sometimes a pumice paste to ensure a smooth, clean surface. Other options, such as applying fluoride treatment, mixing the sealant material, or applying disclosing solution, do not precede the cleaning step and are not necessary for achieving optimal sealant placement. Each of these steps has its own significance and specific timing within the overall procedure, but cleaning the tooth surface fundamentally lays the groundwork for a successful sealant application.