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Purpose:This study examined the possible association of three dental factors with total
mortality and death from coronary heart disease. Materials and Methods:Samples from
two studies were combined, for a total of 2,613 individuals aged 25 to 79 years; a total of
353 deaths occurred, of which 82 were from coronary heart disease. The hazard ratio
was calculated for total and coronary heart disease mortality by regression for the dental
components; conventional risk factors were controlled for in a stepwise manner.
Results:For total and coronary heart disease mortality, associations with both
edentulousness and number of years of edentulism were statistically significant until
smoking was added into the analysis; then, all significance was lost. When the effect of
the oral parameters was studied in relation to total and coronary heart disease mortality,
after adjusting for age and gender, there was a significant hazard ratio for total mortality,
but only for edentulousness. When examined by stepwise regression of the coronary
heart disease risk factors, all significance of risk from the three oral parameters was lost,
smoking having the largest effect of all risk factors. Conclusion:Number of remaining
teeth, edentulousness, and number of years of edentulism were not independent risk
factors for total or coronary heart disease mortality, but they were surrogate markers for
the risk from smoking. Int J Prosthodont 2004;17:441–446.
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