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Differences in periodontal parameters between SPT patients who regularly and irregularly visited the dental clinic analyzed at tooth level: a 14-year retrospective cohort study

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Abstract

The purpose of this study was to evaluate the periodontal status of patients who routinely did SPT, when compared to patients that did not SPT. This retrospective cohort study was conducted at a general dental office from 2001 to 2019. Patients aged 18 to 81 years who visited the dental office over a 10-year period were assigned into two groups: an SPT group, which included patients who continually visited the dental office for SPT one or more times every year, and an irregular group, consisting of patients who did not visit the dental office at least once a year. A total of 7307 teeth (SPT group) and 4659 teeth (irregular group) were evaluated, and the periodontal conditions were compared between the first and latest visits. Multiple regression analysis was used to analyze the results. The mean follow-up time was 13.74 years. The risk factors for improvements in probing pocket depth included age, sex, smoking, diabetes mellitus, molar tooth, and irregular SPT group (p < 0.001), and that for a positive bleeding on probing site was the irregular group (odds ratio 2.94; 95% confidence interval 2.63–3.29). This study showed that lack of routine in attending the SPT program significantly decreased the periodontal parameters, thus highlighting the importance of continuing with the program to maintain the periodontal health.

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Acknowledgements

We appreciate the patients who participated in the study and the personnel from the Fujiwara Dental Clinic for their support during this study.

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Authors and Affiliations

  1. Division of General Dentistry, Nippon Dental University Hospital, 2-3-16 Fujimi Chiyoda-ku, Tokyo, Japan

    Tomotaka Kato

  2. Department of Periodontology, The Nippon Dental University School of Life Dentistry at Tokyo, Tokyo, Japan

    Satoshi Sekino & Yukihiro Numabe

  3. Fujiwara Dental Clinic, Hiroshima, Japan

    Natsuki Fujiwara

Authors
  1. Tomotaka Kato
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  2. Satoshi Sekino
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  3. Natsuki Fujiwara
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  4. Yukihiro Numabe
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Contributions

TK designed the study, wrote the study protocol, performed the statistical analysis, and wrote the manuscript. YN also contributed to the design of this study. NF provided patient care, and devoted to the data collection. TO and YN conducted data acquisition, and wrote the final manuscript. All the authors read and approved the final manuscript.

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Correspondence to Tomotaka Kato.

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Kato, T., Sekino, S., Fujiwara, N. et al. Differences in periodontal parameters between SPT patients who regularly and irregularly visited the dental clinic analyzed at tooth level: a 14-year retrospective cohort study. Odontology 111, 493–498 (2023). https://doi.org/10.1007/s10266-022-00754-0

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  • DOI: https://doi.org/10.1007/s10266-022-00754-0

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