Mark Burhenne
Dr. Mark Burhenne is a commentator on dental and oral health. His work and discussions focus on the oral microbiome and how bacteria in the mouth influence the digestive system and overall health.
31 claims checked on air: 2 context 1 contradicted 7 overstated 16 supported 5 unverified
What they said on air - unverified
Six out of ten chronic diseases involve an oral bacterium either directly or indirectly.
"It's six out of 10 chronic diseases have some oral bacterium involved in it, whether it's direct or indirect, whether it's just by inflammation or injury via a toxin that gets released by those bacteria in the blood, these bacteria in the mouth, and it can be a direct infection." (said at 0:04:58)
No published record matching the claim that six out of ten chronic diseases involve an oral bacterium was located; this does not prove the claim false. While periodontal pathogens (such as Porphyromonas gingivalis) are well documented to contribute to systemic inflammation, endotoxemia, and secondary pathologies across several major chronic illnesses—including cardiovascular disease, diabetes mellitus, rheumatoid arthritis, and Alzheimer's disease—there is no scientific consensus, epidemiological classification, or quantified metric establishing that exactly 60% (six out of ten) of chronic diseases involve oral bacteria.
Oral bacteria swallowed in saliva can survive the stomach acid barrier.
"all the bugs in the mouth that do get swallowed in saliva, some get across the stomach acid barrier or filter, whatever you want to call it." (said at 0:05:40)
No published record matching the claim that oral bacteria swallowed in saliva can survive the stomach acid barrier was located; this does not prove the claim false.
Oral biofilm reorganizes within 20 minutes after being removed.
"And when it came back, which we weren't told back then, comes back in 20 minutes and reorganizes, uh then you know, you you do it again." (said at 0:25:29)
No published record matching the claim that oral biofilm reorganizes within 20 minutes after being removed was located; this does not prove the claim false.
Tooth enamel is 97 to 98 percent calcified, whereas dentin is only about 50 percent calcified.
"the dentin portion of the tooth is exposed, which is all it's like bone. It's only about 50% calcified. Enamel's almost like glass. Uh it's 97 98% calcified, very smooth, hard, inert surface." (said at 0:37:41)
No published record matching the claim that tooth enamel is 97 to 98 percent calcified whereas dentin is only about 50 percent calcified was located; this does not prove the claim false.
Nearly 70 studies measuring fluoride in pregnant women's urine with six-year child follow-up show an adverse impact on the child's brain and IQ.
"thank goodness cuz recently, as of as as recent as 2006, we're getting these great studies all over the world. We've got about almost 70 of them. Uh Uh, most of them are measuring the amount of fluoride in urine in women that are pregnant and then the it follows them up for 6 years later and all these studies pretty much agree on the same thing that there is there is an impact on the brain, mostly on the IQ of the child" (said at 0:49:23)
No published record matching the claim of nearly 70 studies measuring maternal urinary fluoride during pregnancy with six-year child follow-up was located; this does not prove the claim false. While broader systematic reviews identify dozens of ecological and cross-sectional studies on drinking water fluoride and child IQ, prospective pregnancy cohort studies measuring maternal urinary fluoride biomarkers remain limited to a small handful of cohorts.
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