Oral Hygiene Index


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Or·al Hy·giene In·dex (OHI),

(ōr'ăl hī'jēn in'deks),
An index used in epidemiologic studies of dental disease to evaluate dental plaque and dental calculus separately.
Farlex Partner Medical Dictionary © Farlex 2012

oral hygiene index

Abbreviation: OHI
A popular indicator developed in 1960 to determine oral hygiene status in epidemiological studies. The index consists of an oral debris score and a calculus score. Six indicator teeth are examined for soft deposits and calculus. Numerical values are assigned to the six indicator teeth according to the extraneous deposits present. The scores are added and divided by the number of surfaces examined to calculate the average oral hygiene score.
See also: index
Medical Dictionary, © 2009 Farlex and Partners

Or·al Hy·giene In·dex

(OHI) (ōr'ăl hī'jēn in'deks)
Measurement used in epidemiologic studies of dental disease to evaluate dental plaque and dental calculus separately.
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
The data was analyzed and arranged to see the influence of oral hygiene index, gingival bleeding index and glycaemic control on severity of periodontitis and glycaemic status and it was compared with same oral hygiene status individuals by removing the confounding factor of oral hygiene.
Oral hygiene was evaluated using the Simplified Oral Hygiene Index (debris index + calculus index).4 Miller's Mobility Index5 was used to grade the mobility of teeth.
The dental biofilm quantification criteria used in this study was the Oral Hygiene Index Simplified (OHI-S).