Author: Glossary
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Passive eruption
Increased size of the clinical crown of a tooth by apical migration of the attachment epithelium and periodontium.
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Fixed drug eruption
A localized red rash with a sharp border, which follows exposure to a drug. The rash usually burns, occurs on the face or the genitals, and, if the offending agent is given again, recurs in the same location (i.e., it is “fixed” in place).
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Delayed eruption
The most common variation in the tooth eruption pattern. It may be due to crowding or to various genetic, endocrine, or physiological factors.
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Active eruption
Movement of the tooth toward the occlusal plane.
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Error disclosure
Reporting to a patient that a mistake was made in the provision of his or her health care. It is a practice that is widely advocated by bioethicists but generally eschewed by practitioners because of fears of litigation or investigation. When surveyed, patients report wanting full disclosure of any errors made during their treatment. They…
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Error chain
Linked events that ultimately result in an adverse patient outcome.
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Systematic error
The residual error after random error has been subtracted from total error.
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Random error
The patternless differences observed between successive analytical results or statistical trials. Even though the individual results are patternless and unpredictable, the range of random error can be predicted with a given probability once sufficient experience has been gained. The random error is then quantified by the standard deviation, the coefficient of variation, and other statistics.…
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Proportional error
Systematic error that varies directly with the concentration or activity of the analyte.
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Measurement error
The difference between the true value of something being measured and the value obtained by measurement. Measurement error can be the result of one or more of several different factors, including operational blunders, random error, and systematic error.