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!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

What is the main function of an insulating base?

To improve aesthetics
To protect the tooth from thermal shock
To enhance bonding
To provide structural support

The correct answer is: To protect the tooth from thermal shock

The main function of an insulating base is to protect the tooth from thermal shock. This protective layer is crucial when placing restorative materials such as amalgam or composites, which can generate heat during their placement or curing process. Without an insulating base, the heat can transfer to the dental pulp, potentially causing discomfort or damage to the nerve tissue underneath the tooth. Additionally, insulating bases help provide a barrier between the restorative material and the dental pulp, reducing the risk of post-operative sensitivity. The effectiveness of an insulating base in managing temperature fluctuations is a significant aspect of maintaining the health and comfort of the tooth after restorative procedures.