Why Do Some Clinicians Place Three or Four 2-Mm-Diameter Holes

question 32

Multiple Choice

Why do some clinicians place three or four 2-mm-diameter holes in the wax spacer in the anterior and posterior ridge regions?

• A) The spacer creates a uniform thickness for impression material.
• B) The holes help prevent the wax from separating from the stone model.
• C) Placing holes creates a mesh for bonding of acrylic to a metal framework.
• D) It helps orient the tissue-bearing side of the tray toward the teeth.

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Definitions:

Confidence Interval

An interval of values obtained from statistical study of a sample, which is believed to cover the value of a hidden population parameter.

Applicants

Individuals or entities that apply for something, such as a job, grant, or college admission.

Chemistry Department

A specific division within a college or university focusing on the study and teaching of chemistry.

Sample Mean

The average value of a sample, used to estimate the population mean.