TY - JOUR
T1 - Impact of posterior occlusal contact loss on cardiovascular disease using a Japanese claims database
AU - Miyano, Takashi
AU - Tamada, Yudai
AU - Kusama, Taro
AU - Osaka, Ken
AU - Takeuchi, Kenji
N1 - Publisher Copyright:
© The Author(s) 2025.
PY - 2025/12
Y1 - 2025/12
N2 - Cardiovascular disease (CVD) is a global health concern; however, its association with the posterior occlusal contact remains unexplored. This study investigated the association between posterior occlusal contact and CVD risk in a large Japanese cohort and examined whether the loss of posterior occlusal contact in individuals with at least 20 teeth was a distinct CVD risk factor. Using Japanese health insurance claims data from 1,209,997 adults aged ≥ 40 years without prior CVD history (April 2016–March 2022), participants were categorized using the Eichner classification to assess posterior occlusal contact. Over an average follow-up period of 36.2 months, 51,471 participants developed CVD. Compared with individuals with full occlusal contact (Eichner A), those with reduced contact (Eichner B and C) demonstrated significantly higher CVD risks, with hazard ratios of 1.25 (95% confidence interval [CI]: 1.19–1.32) and 1.31 (95% CI: 1.17–1.46), respectively. In a subgroup analysis of participants with ≥ 20 teeth, reduced occlusal contact from Eichner A2 to B2 was associated with an increased risk of CVD, especially in those aged 40–59 years. These findings suggest that reduced posterior occlusal contact may contribute to increased CVD risk, emphasizing the importance of preserving natural occlusal support for CVD prevention.
AB - Cardiovascular disease (CVD) is a global health concern; however, its association with the posterior occlusal contact remains unexplored. This study investigated the association between posterior occlusal contact and CVD risk in a large Japanese cohort and examined whether the loss of posterior occlusal contact in individuals with at least 20 teeth was a distinct CVD risk factor. Using Japanese health insurance claims data from 1,209,997 adults aged ≥ 40 years without prior CVD history (April 2016–March 2022), participants were categorized using the Eichner classification to assess posterior occlusal contact. Over an average follow-up period of 36.2 months, 51,471 participants developed CVD. Compared with individuals with full occlusal contact (Eichner A), those with reduced contact (Eichner B and C) demonstrated significantly higher CVD risks, with hazard ratios of 1.25 (95% confidence interval [CI]: 1.19–1.32) and 1.31 (95% CI: 1.17–1.46), respectively. In a subgroup analysis of participants with ≥ 20 teeth, reduced occlusal contact from Eichner A2 to B2 was associated with an increased risk of CVD, especially in those aged 40–59 years. These findings suggest that reduced posterior occlusal contact may contribute to increased CVD risk, emphasizing the importance of preserving natural occlusal support for CVD prevention.
KW - Cardiovascular disease
KW - Eichner classification
KW - Occlusal contacts
KW - Tooth number, healthcare administrative claims
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U2 - 10.1038/s41598-025-01846-x
DO - 10.1038/s41598-025-01846-x
M3 - Article
C2 - 40369091
AN - SCOPUS:105005112064
SN - 2045-2322
VL - 15
JO - Scientific Reports
JF - Scientific Reports
IS - 1
M1 - 16693
ER -