 These factors make it hard to judge how much not brushing your teeth elevates your risk of coronary heart disease, but there is a proven correlation between poor oral health and coronary heart disease.
<clarity>  These factors make it hard to judge how much not brushing your teeth elevates your risk of coronary heart disease, but there is a proven correlation between poor oral health and coronary heart disease.
 These factors make it hard to judge how much not brushing one's teeth elevates the risk of coronary heart disease, but there is a proven correlation between poor oral health and coronary heart disease.