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Public Periodontal Screening Increases Subsequent Regular Dental Visits: The Life Study.

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  • 1Department of International and Community Oral Health, Tohoku University Graduate School of Dentistry, Miyagi, Japan.

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Summary

Public periodontal disease screening in Japan significantly increased subsequent regular dental visits. This oral health initiative showed a notable rise in dental care attendance, particularly among younger individuals.

Keywords:
dental care utilizationdental checkupdental screeningdental service researchdifference-in-difference analysispreventive dentistry

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Area of Science:

  • Public Health
  • Preventive Dentistry
  • Health Services Research

Background:

  • Public oral health screenings, specifically for periodontal disease, are established in Japan.
  • The impact of these screenings on encouraging regular dental visits remains uncertain.

Purpose of the Study:

  • To investigate if periodontal disease screening motivates individuals to attend dental appointments more regularly.
  • To analyze the change in dental visit frequency post-screening compared to pre-screening using a difference-in-differences (DID) approach.

Main Methods:

  • Utilized health care claims data from municipality residents who underwent periodontal disease screening in 2017-2018.
  • Employed a DID analysis comparing screening recipients with carefully selected controls (1:4 ratio).
  • Assessed the change in the proportion of individuals visiting a dentist at least once every 180 days after screening.

Main Results:

  • Analysis included 4,050 participants; screening recipients showed a significant increase in dental visits post-screening (81.2%) compared to before (approx. 60%).
  • DID analysis revealed a 12.9% increase in the proportion of dental visits after screening.
  • Younger age groups demonstrated higher DID estimates: 20-35 years (13.9%), 40-55 years (12.8%).

Conclusions:

  • Periodontal disease screening is associated with increased subsequent regular dental visits.
  • Public oral health screenings have the potential to improve and maintain oral health, especially in younger populations.