Live data from Hacker News

Toothpaste made with keratin may protect and repair damaged teeth: study

kcl.ac.uk

211–220 of 225 posts

Re: Toothpaste made with keratin may protect and repair damaged teeth: study

#211

The picture says "enamel-mimicking" and the text says "protective coating that mimics the structure and function of natural enamel", so it looks like a protective layer, not true repair. I've been using a paste with novamin lately, it also creates a protective layer and is also marketed as "repair". I like it and feel some heat when it contacts with teeth, so the chemical reaction must be working. But the marketing l…

I don't know what this new hairpaste does, but Novamin promotes re-enamelization of teeth, which is where mineral ions like calcium bond themselves to the tooth and fill in small pits and fissures. It's not regrowing actual enamel, it's probably not going to fill in any pits you can see with the naked eye, but it's a real and beneficial effect. Actually any fluoride toothpaste also does this, but Novamin may be a bit…

People waste their time and money with this garbage. I'm not saying its bad, but there's much better stuff out there. If you care about re-enamelization which everyone with bad to average teeth should, get some Prevident Rinse. Its prescription, its made by Colgate and it has a generic version also. There is also a prevident toothpaste.

Use the mouthwash once a week and you're good. If your dentist doesn't tell you about it and you don't have great teeth, its ONLY because they want to make more money off of you.

Re: Toothpaste made with keratin may protect and repair damaged teeth: study

#212

Earlier quoted context omitted.

nHA is prohibitively expensive to produce and the most effective process that produces the smallest particles is patent-protected by Sangi, and therefore many nHA toothpaste brands only contain a fraction of the concentration used to produce the effective results reported in academic studies (1-2% instead of 10%). If keratin toothpastes can be produced more economically they could be a better option for mass adoption…

First time I've heard about apagard royal. In India it costs ₹5145 or $60 appprox. Thats... substantially more expensive than regular toothpaste. Which costs ₹100-₹200 or $2-3.

Regular toothpaste is just detergent (SLS) with sand (silica) and smelting waste (fluoride) added. Not surprised

Re: Toothpaste made with keratin may protect and repair damaged teeth: study

#213

Earlier quoted context omitted.

I actually started using Sensodyne because of the lack of SLS. I'm not in the US though.

Be careful, they add SLS to several versions of their products in the US.

same in the netherlands, oddly enough. The repair&protect has it in there unfortunately.

Re: Toothpaste made with keratin may protect and repair damaged teeth: study

#214

Earlier quoted context omitted.

Sensodyne toothpaste has two lines: one that contains a mild painkiller (Rapid Relief) and one that [claims to] repair small cracks in teeth (Repair & Protect). I use the latter. I do not know if it works, but I use it. I have never suffered from tooth pain before or after.

I found out the hard way that my mouth really doesn't like having SLS in it because I bought the wrong version of Sensodyne once. The "Pronamel" version is the only one I'm sure doesn't have SLS. Regular Sensodyne in other countries has novamin though, and does not have SLS. I've brought home a few tubes from traveling and it seems to work just as well as the US version - I don't get sensitivity back when using it.

Interesting. I buy Repair & Protect in Israel, it does not have SLS. I'll look to see where it was manufactured.

Re: Toothpaste made with keratin may protect and repair damaged teeth: study

#215
post #172

Earlier quoted context omitted.

Sensodyne toothpaste has two lines: one that contains a mild painkiller (Rapid Relief) and one that [claims to] repair small cracks in teeth (Repair & Protect). I use the latter. I do not know if it works, but I use it. I have never suffered from tooth pain before or after.

It depends on the country also. In the UK for example, Repair & Protect uses novamin but in the US it just uses stannous fluoride.

I'm curious if there's been any evidence Novamin actually repairs enamel or "repairs" in some other way.

IIRC, it's not allowed in the states because it's not economical to prove that it actually repairs teeth, but I think my understanding is based on some internet comments and nothing else. The studies I've seen haven't proven to effectively repair enamel, I think, but I'm also not scientifically literate enough to understand the p values they report.

I used to buy repair and protect from Canada back in 2017 but haven't used it since then. I periodically check if there is any solid evidence but I haven't seen much or I'm too stupid to understand it.

Re: Toothpaste made with keratin may protect and repair damaged teeth: study

#216

Earlier quoted context omitted.

No it wouldn't. Following the scheme a couple of comments above, we have: Y of X providing Z - Windows Subsystem for Linux. Y providing X on Z - Linux Subsystem for Windows. The former is "for [having]", the latter is "for [use on]".

"Windows Subsystem" is a noun-phrase here though. If you want an X providing Y on Z, then it would be "Windows Subsystem for Linux on Windows"

"Windows Subsystem" is a compound noun. It could serve as a noun phrase in a sentence like "Windows Subsystem is nice" or "I like Windows Subsystem", although without some article or other determiner (like "the" or "this") it doesn't sound very grammatical. Generally only mass nouns, like "dirt" or "food", or plural nouns, like "people" or "subsystems", can be noun phrases without an article or determiner. "the Windows Subsystem" or "a Windows Subsystem" (or "a Windows subsystem") would be (complete) noun phrases.

Re: Toothpaste made with keratin may protect and repair damaged teeth: study

#217

Earlier quoted context omitted.

"Windows Subsystem" is a noun-phrase here though. If you want an X providing Y on Z, then it would be "Windows Subsystem for Linux on Windows"

"Windows Subsystem" is a compound noun. It could serve as a noun phrase in a sentence like "Windows Subsystem is nice" or "I like Windows Subsystem", although without some article or other determiner (like "the" or "this") it doesn't sound very grammatical. Generally only mass nouns, like "dirt" or "food", or plural nouns, like "people" or "subsystems", can be noun phrases without an article or determiner. "the Windo…

Thanks! I (unironically) appreciate the semantic correction.

Re: Toothpaste made with keratin may protect and repair damaged teeth: study

#218

Earlier quoted context omitted.

I don't know what this new hairpaste does, but Novamin promotes re-enamelization of teeth, which is where mineral ions like calcium bond themselves to the tooth and fill in small pits and fissures. It's not regrowing actual enamel, it's probably not going to fill in any pits you can see with the naked eye, but it's a real and beneficial effect. Actually any fluoride toothpaste also does this, but Novamin may be a bit…

People waste their time and money with this garbage. I'm not saying its bad, but there's much better stuff out there. If you care about re-enamelization which everyone with bad to average teeth should, get some Prevident Rinse. Its prescription, its made by Colgate and it has a generic version also. There is also a prevident toothpaste. Use the mouthwash once a week and you're good. If your dentist doesn't tell you a…

Don't quote me, but fairly sure just using a fluoride toothpaste outperforms any kind of weekly mouthwash.

Re: Toothpaste made with keratin may protect and repair damaged teeth: study

#219

Earlier quoted context omitted.

Medieval kings were warriors and very often victims of assassination, so they had a way lower life expectancy than a typical peasant of their times.

Medieval European nobility tend not to die in battle. They were captured and ransomed. Richard III died in battle but nobody was gonna ransom him. Assassination definitely brings down the average. But a fair number of English monarchs managed to die in bed. (I was gonna write British, but no: the Scottish kings practically never died in bed. Unless they were stabbed in their sleep.)

Fair enough related to battle, but that's not the only risk of waging war. A fair few kings caught diseases from their campaigns - which they may not have at home. Overall from some light Wikipedia browsing, it seemed to me that around 1/3 of medieval English kings died from assassination or battlefield wounds & diseases. Note that Richard III is basically the last Medieval king, I'm talking about earlier periods.

Re: Toothpaste made with keratin may protect and repair damaged teeth: study

#220
Any fluoride paste quietly calcificates your pineal gland. Try something natural, like Xylitol or even just pour a tea spoon of sodium bicarbonate into a glass of water and wash your teeth with it. Keep the mix in your mouth for 5 minutes. You can also use sunflower oil (a spoon of it) and rinse it in your mouth for 15-20 minutes.
Post reply on HN