I'm wondering if the sodium bicarbonate is what is improving calcium ions in the saliva, not the phosphate. Seems phosphate in most cases oppose calcium's correct role and co2.
Phosphate, activation, and aging.
At any rate, I doubt many people have a phosphate deficiency eating an American diet. TSP has been phased out as a cleaner because it would kill water ecosystems IIRC.
@GorillaHead I'd be curious if xylitol/baking soda rinse would be just as effective? At any rate, if any phosphate is absorbed, it seems bicarbonate would be directly increasing in excretion somewhere along the way. Maybe you're just spitting most of it out. But since baking soda will react and increase ph and maybe increase serum calcium if its absorbed. The theory about xylitol was it had similar effects on raising ph.
The effect of sodium bicarbonate oral rinse on salivary pH and oral microflora: A prospective cohort study
They focus on it's role in ph but it's role in increasing calcium might be just as significant. @ecstatichamster 's point about mouth breathing is relevant as well.
Another important effect of carbon dioxide is in the regulation of both calcium and phosphate, by increasing the absorption and retention of calcium (Canzanello, et al., 1995), and by increasing the excretion of phosphate. Increased carbon dioxide (as dissolved gas) and bicarbonate (as sodium bicarbonate) both increase the excretion of phosphate in the urine, even in the absence of the parathyroid hormone. Below the normal level of serum bicarbonate, reabsorption of phosphate by the kidneys is greatly increased (Jehle, et al., 1999). Acetazolamide increases the body's retention of carbon dioxide, and increases the amount of phosphate excreted in the urine.
Phosphate, activation, and aging.
At any rate, I doubt many people have a phosphate deficiency eating an American diet. TSP has been phased out as a cleaner because it would kill water ecosystems IIRC.
@GorillaHead I'd be curious if xylitol/baking soda rinse would be just as effective? At any rate, if any phosphate is absorbed, it seems bicarbonate would be directly increasing in excretion somewhere along the way. Maybe you're just spitting most of it out. But since baking soda will react and increase ph and maybe increase serum calcium if its absorbed. The theory about xylitol was it had similar effects on raising ph.
The effect of sodium bicarbonate oral rinse on salivary pH and oral microflora: A prospective cohort study
They focus on it's role in ph but it's role in increasing calcium might be just as significant. @ecstatichamster 's point about mouth breathing is relevant as well.