Relationship between Eichner Index and Number of Present Teeth
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- Yoshino Koichi
- Department of Epidemiology and Public Health, Tokyo Dental College
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- Kikukawa Ikuo
- Kikukawa Dental Clinic
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- Yoda Yasushi
- Yoda Dental Clinic
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- Watanabe Hidehiko
- Department of Adult Restorative Dentistry, University of Nebraska Medical Center, College of Dentistry
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- Fukai Kakuhiro
- Fukai Institute of Health Science
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- Sugihara Naoki
- Department of Epidemiology and Public Health, Tokyo Dental College
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- Matsukubo Takashi
- Department of Epidemiology and Public Health, Tokyo Dental College
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Abstract
The aim of this study was to determine the percentage of participants in each of the six Eichner Index groups by number of present teeth (PT). The data were obtained from a periodontal disease examination carried out under a health promotion law in a city located northeast of Tokyo, Japan, in 2005. Data from a total of 1,549 (524 male and 1,025 female) 60-year-old participants were analyzed in this study. Number of occlusal supports was counted by analyzing dental charts. The Eichner Index was used to group the participants into six groups based on distribution of occlusal support teeth. The percentage of patients in Group A with 24 PT was 31.4%; none in Group A had fewer than 19 PT. The percentage in Groups A, B1, and B2 with between 20 and 28 PT was above 50%; the number of participants in these groups with fewer than 20 PT decreased rapidly. Those with fewer than 16 PT were almost found in Groups B3, B4 and C. Only a few patients in Group C had between 10 and 14 PT; those with fewer than 9 PT were only found in Groups B4 or C. Based on these results, the Eichner Index category of a given participant can be estimated from number of PT.
Journal
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- The Bulletin of Tokyo Dental College
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The Bulletin of Tokyo Dental College 53 (1), 37-40, 2012
Tokyo Dental College, Japan