Epidemiological Investigation of the Dental Calculus Index in Patients with Urinary Stones.

DOI 3 Citations 23 References
  • NAGATA Toshihiko
    Department of Periodontology and Endodontology, Tokushima University School of Dentistry
  • KASAHARA Chika
    Department of Periodontology and Endodontology, Tokushima University School of Dentistry
  • KIDO Jun-ichi
    Department of Periodontology and Endodontology, Tokushima University School of Dentistry
  • SHINOHARA Hiroyuki
    Department of Periodontology and Endodontology, Tokushima University School of Dentistry
  • NISHIKAWA Seiji
    Department of Periodontology and Endodontology, Tokushima University School of Dentistry
  • ISHIDA Hiroshi
    Department of Periodontology and Endodontology, Tokushima University School of Dentistry
  • WAKANO Yoichi
    Department of Periodontology and Endodontology, Tokushima University School of Dentistry
  • KATOH Yoshinari
    Kanbara Hospital
  • KOHRI Kenjiro
    Department of Urology, Nagoya City University Medical School

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  • 尿路結石患者の歯石沈着指数に関する疫学的検索

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Abstract

There are some common features between urinary stones and dental calculus in terms of contents and the age-related incidence. In this study, we investigated dental calculus condition in patients suffering from urinary stones in order to determine whether or not these patients tend to have any more dental calculus than persons who have never had urinary stones. The subjects were 40 patients (stone group, mean 53 years old) and 57 controls (control group, mean 47 years old). None of the subjects had had a scaling treatment within 6 months. CI-S was applied for the dental calculus index using 6 anterior and posterior teeth, as previously reported. The examination revealed that CIS in the stone group was significantly higher than in the control group, showing 1.10±0.09 and 0.37±0.05, respectively. A three-times higher index was also observed when 6 mandibular anterior teeth were examined (1.63±0.15 vs. 0.60±0.11). Correlations between calcium- or phosphor-contents in urine and CI-S were determined, but there were no correlations between the urinary contents and CI-S, indicating that the incidence of dental calculus does not relate to urinary calcium and phosphor. These findings suggest that there may be a close relationship between urinary stones and dental calculus formations.

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