When Was the Periodontal Probe First Used to Assess Periodontal

question 35

Multiple Choice

When was the periodontal probe first used to assess periodontal disease?

• A) 1840 to 1860
• B) 1913 to 1916
• C) 1940 to 1960
• D) 1970 to 1980
• E) Impossible to determine, but it was recorded in ancient times.

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Definitions:

Confidence Interval

A span of values resulting from sample statistical analysis, likely enveloping the value of an unidentified population characteristic.

Standard Error

The typical deviation found within the distribution of sample data, often associated with the average.

Regression Line

A straight line used in linear regression analysis that best fits a set of data points, showing the relationship between two variables.

Confidence Interval

A span of numbers, obtained from sample observations, which is expected to include the value of an unobserved population attribute at a certain confidence level.