National Dental Assisting Examining Board (NDAEB) Practice Exam

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What is one common use of zinc oxide-eugenol cement?

Only for permanent cement
As a temporary cement or sedative base
For void filling in tooth restoration
As an impression material

The correct answer is: As a temporary cement or sedative base

Zinc oxide-eugenol cement is widely recognized for its properties that make it suitable as a temporary cement or a sedative base. It has a soothing effect on the pulp due to the presence of eugenol, which helps in alleviating pain and irritation. This makes it particularly effective in situations where the dental pulp is sensitive or inflamed. In addition to its use as a temporary cement, zinc oxide-eugenol can also function effectively as a base under permanent restorations due to its insulating properties and ability to provide some thermal protection. Its relative ease of manipulation and setting time also contribute to its common application in temporary restorations until a definitive treatment can be administered. While it is also true that zinc oxide-eugenol has applications in other areas, such as being used to fill voids or cavities in some restoration contexts, its primary and widely accepted use is as a temporary cement or sedative base.