Article

Dental Calculus Is Associated with Death from Heart Infarction

BioMed research international 01/2014; 2014(3):569675. DOI: 10.1155/2014/569675
Source: PubMed

ABSTRACT

Objectives:
We studied whether the amount of dental calculus is associated with death from heart infarction in the dental infection-atherosclerosis paradigm.

Materials:
Participants were 1676 healthy young Swedes followed up from 1985 to 2011. At the beginning of the study all subjects underwent oral clinical examination including dental calculus registration scored with calculus index (CI). Outcome measure was cause of death classified according to WHO International Classification of Diseases. Unpaired t-test, Chi-square tests, and multiple logistic regressions were used.

Results:
Of the 1676 participants, 2.8% had died during follow-up. Women died at a mean age of 61.5 years and men at 61.7 years. The difference in the CI index score between the survivors versus deceased patients was significant by the year 2009 (P < 0.01). In multiple regression analysis of the relationship between death from heart infarction as a dependent variable and CI as independent variable with controlling for age, gender, dental visits, dental plaque, periodontal pockets, education, income, socioeconomic status, and pack-years of smoking, CI score appeared to be associated with 2.3 times the odds ratio for cardiac death.

Conclusions:
The results confirmed our study hypothesis by showing that dental calculus indeed associated statistically with cardiac death due to infarction.

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Available from: Birgitta Söder, Jan 16, 2014
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