Dental Health Surveys at 80 years old in Tokoname City.

DOI 10 Citations
  • MIZUNO Teruhisa
    Department of Preventive Dentistry and Dental Public Health, School of Dentistry, Aichi-Gakuin University
  • NAKAGAKI Haruo
    Department of Preventive Dentistry and Dental Public Health, School of Dentistry, Aichi-Gakuin University
  • MURAKAMI Taeko
    Department of Preventive Dentistry and Dental Public Health, School of Dentistry, Aichi-Gakuin University
  • KATO Kazuo
    Department of Preventive Dentistry and Dental Public Health, School of Dentistry, Aichi-Gakuin University
  • TSUBOI Shinji
    Department of Preventive Dentistry and Dental Public Health, School of Dentistry, Aichi-Gakuin University
  • KATO Shoichi
    Department of Preventive Dentistry and Dental Public Health, School of Dentistry, Aichi-Gakuin University
  • INOUE Chieko
    Tokoname City Health Center
  • TAKEUCHI Kanichi
    Tokoname City Health Center
  • SAIDA Akio
    Tokoname City Health Center
  • INOUE Kohei
    Aichi Dental Association
  • MIZUTANI Yuki
    Aichi Dental Association
  • OZAWA Akira
    Aichi Dental Association
  • TAKIGAWA Toru
    Aichi Dental Association
  • KUMENO Chiyo
    Aichi Dental Hygienist Association

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Other Title
  • 常滑市における８０歳歯科健康調査

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Abstract

To bring to light the factors associated with lifestyle and oral habits which might have led to the retention of teeth in 80-year-old people, a questionnaire was sent out in 1992 inquiring about the oral and general health of all persons aged 80 years and older living in Tokoname City, near Nagoya. The total number of subjects was 1, 889 and the reply ratio was 64.5%. Seventy-eight subjects were selected at random, each of whom possesed at least 20 teeth according to their answers. A similar number of subjects, matched by sex, age, and area of residence, were selected as a control group. Each subject was interviewed to establish his or her past lifestyle and the condition of their oral health. A dentist examined the mouth of each individual at his or her house. The final number of study subjects came to 118 persons. For a statistical analysis the chi-square and Fisher's exact test were used.<BR>The results were as follows:<BR>1) The molars were lost with the greatest frequency and the canines were retained with the greatest frequency in subjects 80 years old or older.<BR>2) Most subjects who retained less than 20 teeth had false teeth and needed to repair their dentures.<BR>3) The retention of 20 or more teeth at 80 years of age or older was significantly higher in subjects not fond of sweets around 20 or 40 years of age (p<0.05), those eating only an occasional snack between meals while in primary school (p<0.05), and those whose mother was not fond of sweets (p<0.05).<BR>4) Regarding past oral condittions, the female subjects who retaining 20 or more teeth at 80 years of age or older had no swollen gums at 40 or 60 years of age (p<0.05) and had regular dentition at 20 years of age (p<0.05).

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