National Dental Assisting Examining Board (NDAEB) Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

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.

A mandibular alginate impression requires how many scoops of powder and measures of water?

One scoop and one measure
Two scoops and two measures
Three scoops and one measure
Four scoops and three measures

The correct answer is: Two scoops and two measures

In taking a mandibular alginate impression, the correct ratio generally involves utilizing two scoops of alginate powder combined with two measures of water. This specific proportion helps to achieve the optimal consistency and viscosity needed for thorough coverage and proper detailing of the mandibular arch. When preparing the alginate, it’s crucial to maintain the recommended scoops-to-water ratio to ensure that the impression material is neither too thick nor too runny. A mixture that is too thick may not capture fine details, while an overly watery mix could lead to distortion or failure to set properly. Thus, the use of two scoops of powder and two measures of water strikes the right balance for effective and reliable impressions. Understanding the significance of these measurements is vital, as proper impression quality is essential for accurate treatment planning and fitting of dental appliances or restorations.