However, no patient suffered a cardiovascular event on the day of treatment, and the apparent increased risk for heart problems dissipated within six months, the researchers noted.
Such "transient" cardiovascular concerns are generally minimal, do not outweigh the long-term cardiovascular benefits of invasive dental treatment, and should not deter patients from getting the dental care they need, the authors concluded.
In an editorial in the same journal, Dr. Howard Weitz of the Jefferson Heart Institute and Dr. Geno Merli of the Jefferson Vascular Center, both in Philadelphia, noted that it is too early to say that routine dental care should be altered in any way based on the current findings.
For one thing, they said the jury is still out on how clear a connection actually exists between periodontal disease and cardiovascular illness in the first place. And they theorized that much of the observed treatment-related risk might actually stem from a common pre-procedure practice, namely that patients who routinely take aspirin to lower their heart risk stop taking the medication before undergoing dental surgery.
With millions of Americans on an ongoing aspirin regimen, Weitz and Merli said this angle requires further exploration.
Anthony Iacopino a prosthodontist and dean of the University of Manitoba's school of dentistry in Canada, said he was not surprised that dental treatment may entail some cardiovascular risk. But he agreed that the benefits of treatment far exceed the risks.
"Periodontal disease is an infection, and bacteria gets into the bloodstream as a result," he noted. "This happens at a low level at rest, and even more so when
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