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 forms the foundation for successful temporary cementation?

  1. Quality of the dental cement

  2. Placement of the temporary crown

  3. Completely filling the crown with cement

  4. Moisture control during placement

The correct answer is: Completely filling the crown with cement

The foundation for successful temporary cementation relies significantly on completely filling the crown with cement. This practice ensures that the entire internal surface of the temporary crown is in contact with the underlying tooth structure. Adequate filling minimizes the potential for microleakage, which can lead to sensitivity or decay due to bacterial ingress. Moreover, a thorough and even distribution of cement helps achieve an optimal seal between the crown and tooth, preventing dislodgement during normal function and protecting the underlying tooth until a permanent restoration can be placed. While other factors like the quality of dental cement, placement of the temporary crown, and moisture control are important, they play supplementary roles in the overall success of the cementation process. For example, the quality of the cement contributes to its strength and adherence, and proper placement ensures that the crown fits well, but these aspects cannot compensate for insufficient filling. Moisture control during placement is also critical to achieving good adhesion, but if the crown is not filled completely, the risk of complications remains high. Therefore, complete filling is essential for maximizing the effectiveness of temporary cementation.