Researchers in Beijing have regenerated the microstructure of human tooth enamel unde

mattheman

mattheman

mattheman

Permabanned
Joined
13 Oct 2008
Posts
3,284
http://www.nature.com/nchina/2009/090909/full/nchina.2009.178.html

There is good news for dentists and people with a sweet tooth! Haifeng Chen and co-workers at Peking University in Beijing1 have used a simple chemical approach to regenerate enamel — the hard mineralized substance that forms the outer layer of teeth. The findings demonstrate a potential application in tooth repair at dental clinics.

Human tooth enamel has a hierarchical structure comprised of parallel arrays of rod-like hydroxyapatite crystals. The researchers have developed an aqueous solution for growing synthetic enamel directly onto natural human tooth enamel.

The aqueous solution is prepared by mixing calcium phosphate solution with a weak acid called HEDTA (pH 6.0), and subsequently with potassium fluoride solution. The researchers placed a human molar into the solution at 37 °C for eight days. Afterwards, they found that a layer of fluoridated hydroxyapatite enamel had grown over the human molar.

Under the microscope, the structure of the synthetic enamel looks similar to that of natural enamel. In addition, mechanical analyses show that the elastic modulus and hardness of the synthetic enamel are superior to those of natural enamel. The researchers are hopeful that their approach will find many novel applications in dentistry.
Click to expand...
http://www.rsc.org/publishing/journals/CC/article.asp?doi=b911407f

pretty good news i think.
 
That's good. Now for all those people who have neglected to take care of their chops' they now have a solution to help them!

But not for a while I imagine :P
 
That's all very well but I see a flaw in all this, either you have to dip your head in this solution for 8 days... or pull your teeth out before placing it in the solution... :p
 
Jonny L said:
Don't fancy sitting there with a gob full of the solution for 8 days to let it grow though :p

damn beaten :(
Click to expand...

they will probably just harvest teeth from the poor , coat them in new enamel in lab, sell to rich people instead of dentures

anyway i thought someone worked out how to grow full new teeth not that long ago ?
 
If they can accelerate the reaction (we're talking minutes rather than hours)+ the cost is not prohibitive,for prophylactic treatment in kids aged 5+,it sounds like a winner. Can't speak for anyone else,but my 2 seem to brush their teeth really quickly with no-one watching them.
 
Beerbaron said:
Im sure i heard quite a while a go that someone had created an injection that stops the acid from decaying teeth
Click to expand...

It killed bacteria thats causes the acid, as we speak human teeth are being grown in labs at tokyo university, guys hospital are also in the scene and growing teeth. China is starting human trials early 2011. The amount of profits for comercial version of this will be billions and the last dental goal, so profits would be continious.
 
Last edited:
Sharpsilver said:
That's good. Now for all those people who have neglected to take care of their chops' they now have a solution to help them!

But not for a while I imagine :P
Click to expand...

Some people have soft teeth. I know several people that have been advised to stick clear of acidic food and to only brush once a day for example. This would help to build it.

Obviously a while off but interesting. Now if only they could grow teeth back in situ as if a new tooth.
 
tisonlyme said:
Meh...I'd rather just look after my teeth properly
Click to expand...

But did you know once you get to your 40s theres a good chance you ll have a filling, once hitting your 50s emamel loss. On top of that enamel loss is a bit problem amoung the young, because of how and what we put in our foods.
 
You must log in or register to reply here.
Back
Top Bottom