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Periodical utilization of dental services is an effective breakthrough for declining masticatory performance: the Suita study

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Abstract

Masticatory performance of subjects from a general urban population was examined by measurement at baseline and again at follow-up, to clarify whether periodical utilization of dental services (PUDS) is effective in maintaining masticatory performance. Subjects comprised 1010 people (414 males, 596 females; mean age at baseline, 65.7 ± 7.8 years) who participated in the Suita study with dental checkups at both baseline and follow-up (mean follow-up, 5.2 ± 1.5 years). Number of functional teeth, occlusal support, periodontal status, masticatory performance, maximum bite force, and salivary flow rate were surveyed. Subjects were divided into a with-PUDS group (n = 430), who responded at both baseline and follow-up that they regularly utilized dental services, and a without-PUDS group (n = 580), who responded otherwise. To evaluate longitudinal changes in masticatory performance over the study period, the rate of masticatory performance change was calculated by dividing the difference in masticatory performance between follow-up and baseline by the masticatory performance at baseline. The relationship between the presence of PUDS and the rate of masticatory performance change was investigated by multiple linear regression analysis. Analysis was performed using a model with number of functional teeth as an independent variable (number of functional teeth model), and a model with occlusal support as an independent variable (occlusal support model). Multiple linear regression analysis identified PUDS as significantly associated with the rate of masticatory performance change in both the number of functional teeth model and the occlusal support model. PUDS is likely to prove effective in ameliorating reductions in masticatory performance over time.

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Acknowledgements

This study was supported by grants-in-aid from the Ministry of Education, Science, and Culture of Japan (Nos. 20390489, 23390441, and 26293411) and the Intramural Research Fund of the National Cerebral and Cardiovascular Center (22-4-5, 27-4-3).

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Authors and Affiliations

  1. Division of Comprehensive Prosthodontics, Niigata University Graduate School of Medical and Dental Sciences, 2-5274 Gakkocho-dori, Niigata, 951-8514, Japan

    Katsunori Fujii, Yoko Hasegawa & Takahiro Ono

  2. Department of Prosthodontics, Gerodontology and Oral Rehabilitation, Osaka University Graduate School of Dentistry, 1-8 Yamadaoka, Suita, Osaka, 565-0871, Japan

    Takayuki Kosaka, Momoyo Kida, Sakae Hashimoto, Shuri Fushida, Kazunori Ikebe & Takahiro Ono

  3. Osaka University, 1-1 Yamadaoka, Suita, Osaka, 565-0871, Japan

    Takashi Nokubi

  4. Department of Preventive Cardiology, National Cerebral and Cardiovascular Center, 6-1, Kishibe-shimmachi, Suita, Osaka, 565-8565, Japan

    Yoshihiro Kokubo, Makoto Watanabe, Aya Higashiyama & Yoshihiro Miyamoto

Authors
  1. Katsunori Fujii
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  2. Takayuki Kosaka
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  3. Yoko Hasegawa
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  4. Momoyo Kida
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  5. Sakae Hashimoto
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  6. Shuri Fushida
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  7. Takashi Nokubi
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  8. Yoshihiro Kokubo
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  9. Makoto Watanabe
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  10. Aya Higashiyama
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  11. Yoshihiro Miyamoto
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  12. Kazunori Ikebe
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  13. Takahiro Ono
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Corresponding author

Correspondence to Takahiro Ono.

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Ethical approval

All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee (Ethics Committee of the National Cerebral and Cardiovascular Center, approval number: M19-62) and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.

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Informed consent was obtained from all individual participants prior to inclusion in this study.

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Fujii, K., Kosaka, T., Hasegawa, Y. et al. Periodical utilization of dental services is an effective breakthrough for declining masticatory performance: the Suita study. Odontology 108, 715–722 (2020). https://doi.org/10.1007/s10266-020-00501-3

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  • DOI: https://doi.org/10.1007/s10266-020-00501-3

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