“I place implants for a living. By the time a tooth reaches me, nobody is talking about brushing any more.”

I want to be careful about what I am and am not saying here, because this subject attracts a lot of noise and I would rather be useful than dramatic.

I am an implantologist. That means I do not spend my days fixing teeth. I spend them replacing teeth that could not be saved. It is good work and I am glad the option exists. But it is the last chapter, and by the time someone is sitting in my chair, the interesting part of the story is already several years behind us.

Here is what I have watched happen often enough to write it down.

Dr. Toni Martinčević, DMDImplantologist · developed CariSpray

Almost nobody who ends up in my chair was careless

That is the part that surprises people, and it is the reason I keep talking about this.

The patients who lose teeth are, overwhelmingly, not the ones who never brushed. They are people who brushed twice a day for thirty years, flossed most nights, went for cleanings, and did everything they were told to do. They are frequently embarrassed when they arrive, as though they had failed at something obvious. They had not.

They were doing the right thing at the wrong time, for a problem that does not happen when they were doing it.

The damage is chemical. Brushing is mechanical.

This is the sentence I wish someone had put on a poster in every waiting room.

Brushing is mechanical. Bristles scrape plaque off a surface, the way a brush cleans a plate. That works, and I am not about to tell anyone to stop.

But the process that ends with an extraction is not mechanical. It is chemical. Enamel is a mineral, and minerals dissolve in acid.

There is a number for it, and it is not a marketing figure. Below a pH of about 5.5, enamel begins giving up mineral. Above that line, mineral moves back in. Below it, mineral moves out. Every day of your life, that exchange runs in both directions, and the only question that has ever mattered is which direction runs more often.

Six windows a day, and you are present for two of them

Every time a patient eats or drinks anything, the same sequence runs. Plaque bacteria turn it into acid within seconds. pH falls for about five minutes, stays under the line for roughly fifteen more, and then saliva spends twenty minutes carrying it back up.

It does not have to be sweet. A sparkling water does it. A coffee does it. A glass of wine does it.

Now count an ordinary day. Breakfast. Coffee. Something mid-morning. Lunch. An afternoon coffee. Dinner. Six occasions is six acid windows — and both brushings happen at the two moments furthest away from every single one of them.

That is the whole thing. Not bad technique. Not laziness. A schedule that does not match the problem.

What I am not saying

I am not telling anyone to stop brushing, and I am not selling a way to avoid the dentist. If you have pain, or a tooth that has changed colour, or bleeding gums, you need an appointment, not an article.

I am also not going to tell you that a tooth with a cavity in it can be talked out of needing treatment. It cannot. Once the surface has broken down structurally, that is a repair job, and it belongs to somebody with a drill.

What I am saying is narrower and, I think, more useful: there are roughly six hours a day when the surface is losing mineral and nothing in your bathroom is anywhere near you.

Why I stopped recommending a stronger rinse

For years the honest answer I gave patients was some version of “rinse more”. I stopped, for two reasons.

The first is that a rinse is a bathroom product. It comes in a 500 ml bottle, it requires water, and it has to be spat out. Which means it can only ever be used in the two places the toothbrush already covers. It is not in the car. It is not at the desk.

The second is more uncomfortable. A large number of rinses are built on alcohol, and alcohol dries the mouth. Saliva is both the buffer against acid and the delivery system for mineral. A product bought to make a mouth healthier can leave it with less of the one fluid that defends it.

So I would send someone away with advice that could not be followed at the times it mattered, using a product that in some cases worked against the thing I was trying to protect.

What is actually leaving the tooth

Enamel is not made of “calcium” in any general sense. It is made overwhelmingly of one specific mineral: hydroxyapatite. When enamel loses mineral in an acid window, that is the mineral it loses.

Which produces an idea so straightforward that it is faintly embarrassing it took the industry this long: if that is what is leaving, offer the tooth the same thing back. Not a substitute. Not a coating. The same material, in a particle small enough to settle onto the surface.

The other half of the problem is the bacteria producing the acid. For that, the useful ingredient is xylitol. It resembles sugar closely enough that the organisms driving decay take it up, and then find they cannot metabolise it. They fill up on something that gives them nothing.

So I built the thing I could not prescribe

A toothbrush cannot go to lunch with you. It is not in the car after coffee, or at a desk after a fizzy drink, or in a bag at nine in the evening. Those are the hours when the mineral is leaving.

So the format was the whole design problem, not the formula. It had to work with no water, no sink, no spitting and no rinsing, which in turn meant it had to be safe to swallow. It had to fit in a pocket. And it had to take three seconds, because anything that takes longer will not be done six times a day by anybody, including me.

Two or three sprays, aimed at teeth and tongue, held for five seconds. No fluoride. No alcohol. It is patent pending.

What is actually measured

Four numbers, and it is worth being precise about where each one comes from. The first was measured in a laboratory. The other three come from users over four weeks of ordinary use.

It has also been dermatologically tested — a patch test on twenty adults with sensitive skin, recorded as non-irritant and non-sensitising.

What that adds up to

1. Mineral, not just cleaning. Hydroxyapatite is what enamel is made of. It is the one thing a rinse that only removes can never give back.
2. Whiter without bleaching. The whitening is a smoother surface holding less stain, not peroxide stripping the outer layer.
3. Breath that comes from the tongue, not from mint. Fewer of the bacteria producing sulphur compounds, and no alcohol drying the mouth out two hours later.
4. Less tartar. Reported by nearly three in four over four weeks.
5. Three seconds, anywhere. No water, no sink, no spitting, no rinsing — which is the only way anything can be used at the moment the acid window is actually open.
6. Safe to swallow. Which is what makes the point above possible at all.

What I would tell a patient to do

1. Keep brushing twice a day. Nothing here changes that.
2. Count your occasions, not your sugar. Six coffees sipped slowly is worse than one dessert. Enamel counts events.
3. Stop sipping. If you are going to have the sparkling water, have it, rather than nursing it for an hour.
4. Cover the windows you cannot avoid. Three seconds after eating, wherever you happen to be.
5. Give it sixty days. Enamel exchange is slow and nothing about this is dramatic in week one.

Skip, pause or cancel the delivery option at any time. No minimum, no fee. And because the whole idea rests on mineral arriving regularly rather than once, the people who get the most out of it are simply the ones who never run out.

If you are still not sure

Every order carries a 60-day money-back guarantee, counted from the day the order arrives. Keep the bottle — sealed, opened or empty, there is nothing to send back. Email with the order number and the purchase price and original shipping are refunded.

Sixty days is roughly three hundred and sixty acid windows. That is long enough to know.

Sources

1. Dawes C. What is the critical pH and why does a tooth dissolve in acid? J Can Dent Assoc 2003;69(11):722–4
2. Gustafsson B.E. et al. — the Vipeholm dental caries study, on frequency of intake versus quantity
3. Milgrom P. et al. — xylitol and Streptococcus mutans, PubMed
4. Published literature on salivary flow, xerostomia and alcohol-containing mouthrinses
5. CariSpray Clinical Prescribing Guide (EU), OralAdvance Labs — the four measured figures and the dermatological patch test