Caries

 

Vandaag een leuk artikel te lezen op www.nu.nl :

Japanners vinden middel tegen tandbederf

TOKIO – Gaatjes in de tanden kunnen tot het verleden behoren dankzij een uitvinding van Japanse wetenschappers.

De tanden krijgen daarbij een flinterdun laagje materiaal, gemaakt van hydroxyapatiet dat ook in tandemail zit.
”We hopen zo tanden te beschermen of beschadigde tanden te repareren”, zo professor Shigeki Hontsu van de Kinki universiteit in Japan. ”Tandartsen droomden lang van zo’n laagje.”
Wetenschappers kunnen een laagje maken van slechts 0,004 millimeter dun. Dat kan door met lasers stukjes hydroxyapatiet af te snijden. Deze stukjes worden daarna gekristalliseerd en kunnen op tanden worden geplakt. Enige probleem is dat het wel een dag duurt om het dunne laagje vast te maken op de tanden.
Bobbels
”Zodra het op de tanden is geplakt, zie je er niets meer van. Zelfs onder een lamp is het amper te zien”, zegt professor Hontsu. In het laagje zitten wel enkele kleine gaatjes om lucht en vocht te laten ontsnappen, om bobbels onder het laagje te voorkomen.
De laagjes zijn nu doorzichtig, maar het is ook mogelijk om ze wit te maken om het gebit witter te laten lijken.
De uitvinding is nog niet te koop. Het duurt nog minstens 5 jaar voordat het laagje gebruikt kan worden bij tandbehandelingen. Maar het is wel over 3 jaar te gebruiken voor cosmetische toepassingen.

Helaas komen dit soort materialen maar weinig echt in de praktijk terecht omdat blijkt dat de werkzaamheid toch niet zo goed is al werd verwacht. Meerdere keren per jaar komen dit soort berichten in de krant:

Kokosnootolie voorkomt tandbederf

Tandartsboor onnodig door nieuwe vloeistof

In 2010 stond kwam onderstaand bericht in de media”

Nederlanders ontdekken middel tegen gaatjes:

Tot op vandaag hebben wij helaas nog geen wondermiddelen beschikbaar tegen gaatjes.

Op een na dan: tandenpoetsen 😉

 

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