attrition

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attrition

 [ah-trĭ´shun]
the wearing away of a substance or structure (such as the teeth) in the course of normal use.

at·tri·tion

(ă-trish'ŭn),
1. Wearing away by friction or rubbing.
2. In dentistry, physiologic loss of tooth structure caused by the abrasive character of food or by bruxism. Compare: abrasion.
[L. at-tero, pp. -tritus, to rub against, rub away]

attrition

[ətrish′ən]
Etymology: L, atterere, to wear away
1 the process of wearing away or wearing down by friction.
2 the physiological wearing away of the teeth such as from normal mastication, grinding, bruxism, premature contacts, or abnormal tooth structures. See abrasion, abfraction, erosion.
3 individuals who withdraw or are dismissed from a study or program of study.

attrition

The dropping out of a participant in a trial or study.

at·tri·tion

(ă-trish'ŭn)
1. Wearing away by friction or rubbing.
2. In dentistry, physiologic loss of tooth structure caused by normal wear inherent in the aging process, as well as by the abrasive character of food or by bruxism.
Compare: abrasion
3. The loss of participants over the course of a study, which can create bias and threaten the internal validity of the study.
[L. at-tero, pp. -tritus, to rub against, rub away]

at·tri·tion

(ă-trish'ŭn)
1. In dentistry, physiologic loss of tooth structure caused by normal wear inherent in the aging process, as well as by the abrasive character of food or by bruxism.
2. Wearing away by friction or rubbing.
[L. at-tero, pp. -tritus, to rub against, rub away]

attrition (ətrish´ən),

n the normal loss of tooth substance resulting from friction caused by physiologic forces.
Enlarge picture
Attrition.

attrition

the physiological wearing away of a substance or structure in the course of normal use.

dental attrition
see dental attrition.
References in periodicals archive ?
The underlying dimensions of attrition were identified through principal components analyses with varimax rotation that explained the variance in the attributes.
Policies and procedures of the company and strained human relations at work place are other factors for attrition.
Table 1 Demographic Characteristics of Sampled Respondents Number of respondents (n = 98) percentage a Age 20-25 years 40 41 26-30 years 38 39 30+years 20 20 b Education Intermediates 50 51 Graduates 38 31 Post- Graduates 18 18 c Experience 0-2 years 40 41 2-5 years 38 39 5+ years 20 20 d Gender Male 55 56 Female 43 44 Table 2 Variables Showing Attrition Variable Description V1 To what extent formal training is imparted.
The evaluation showed no significant difference in attrition across all causes between the IFS and IFT programs.
Table 2 summarizes the broad categories of attrition.