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Reasons for permanent tooth extractions in Japan
Jun Aida1, Yuichi Ando, Rahena Akhter
1Department of Preventive Dentistry, Division of Oral Health Science, Hokkaido University Graduate School of Dental Medicine, Sapporo, Japan.
Journal of Epidemiology
|September 5, 2006
Summary
Dental caries and periodontal disease are the primary reasons for permanent tooth extractions in Japan. Public health initiatives should focus on preventing dental caries across all ages and periodontal disease in older adults.
Area of Science:
- Dental Public Health
- Epidemiology
- Oral Surgery
Background:
- No prior nationwide studies in Japan have documented reasons for permanent tooth extraction.
- Understanding extraction causes is crucial for targeted public health interventions.
Purpose of the Study:
- To determine the primary reasons for permanent tooth extraction nationwide in Japan.
- To identify demographic trends in tooth extraction causes.
Main Methods:
- A nationwide survey of 5,131 dentists in Japan was conducted.
- Dentists recorded reasons for permanent tooth extractions over a one-week period in 2005.
- Extraction reasons were categorized into caries, fracture, periodontal disease, orthodontics, and other.
Main Results:
- Caries and its sequelae (43.3%) and periodontal disease (41.8%) were the leading causes of extraction.
- Caries-related extractions were prevalent in individuals aged 15 and older.
- Periodontal disease was the predominant reason for extraction in individuals over 45 years of age.
Conclusions:
- Dental caries and periodontal disease are the principal drivers of permanent tooth loss in Japan.
- Preventive strategies for dental caries are needed for all age groups.
- Targeted interventions for periodontal disease are essential for individuals over middle age.
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