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aste

[#marinar]



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Post Posted: 29-06-2010, 18:43:30 | Translate post to: ... (Click for more languages)

Pepsi wrote:
asteeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

Joia asta vin in costinesti -


dai 3 beri sau nu ?! -


vine si fractu ? :pepsi:

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felixcat

[baka neko]



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Post Posted: 29-06-2010, 19:18:25 | Translate post to: ... (Click for more languages)

http://www.9am.ro/stiri-revista-presei/Incredibil/154298/S-a-inventat-gelul-care-regenereaza-dintii-afectati-de-carii.html

pt Malpraxxis -



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Malpraxxiss

[Very Important Person]



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Post Posted: 29-06-2010, 20:51:37 | Translate post to: ... (Click for more languages)

felixcat wrote:
http://www.9am.ro/stiri-revista-presei/Incredibil/154298/S-a-inventat-gelul-care-regenereaza-dintii-afectati-de-carii.html

pt Malpraxxis -


In sfarsit, un subiect pe gustul meu -

Am dubii mari in legatura cu articolul respectiv. O sa argumentez de ce cred asta, pornind de la doua premise.

1. Mugurele dentar, din care ia nastere dintele, este format la exterior dintr-o componenta ectodermala embrionara, iar la interior dintr-o compomenta mezenchimala. Componenta ectodermala se diferentiaza in epiteliu adamantin extern si epiteliu adamantin intern, iar cel din urma va da nastere adamantoblastelor (celule precursoare ale smaltului). Adamantoblastele dispuse la exteriorul mugurelui dentar depun smaltul in sens centrifug, adica dinspre centru spre periferie, iar cand dintele erupe organul adamantin FUZIONEAZA cu mucoasa bucala si DISPARE. De aceea smalul nu se mai reface niciodata.

2. Smaltul este alcatuit din cristale de hidroxiapatita, grosso modo vorbind.

9am.ro wrote:
peptida poate fi inclusa intr-un gel sau intr-un film subtire care se aplica peste rana. Plasata in apropierea unei cavitati dentare, stimuleaza celulele sa se regenereze


Afirmatia nu are sens. Nu are ce adamantoblaste sa stimuleze, pentru ele nu mai exista dupa eruptia dentara.
Am incercat sa interpretez altfel. Am zis bine domne', poate s-au referit ca stimuleaza prin cine stie ce mecanisme alte celule care raman in dinte, cum ar fi odontoblastele (care depun dentina, care e formata tot din hidroxiapatita).
In orice situatie, orice tip de substanta pe baza de hidroxiapatita ar umple golul initial, nu se poate comparata cu smaltul. E aproapte imposibil sa creezi cristale de hidroxiapatita de natura celor din smalt (forma, marime si asezare) in vitro intr-o oarecare masura, chiar daca teoretic lucram in mediu viu.

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djbooze

[FreekOut FauK3]



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Post Posted: 29-06-2010, 21:17:38 | Translate post to: ... (Click for more languages)

@Malpraxxiss esti stomatolog?
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blader

[Madness?]



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Post Posted: 29-06-2010, 21:20:46 | Translate post to: ... (Click for more languages)

Asta vrea sa se faca.

Malpraxxisse, mai dai pe mess ba, ca nu mai stiam daca traiesti sau nu. :<



Dereglat, ca un ceas antic.
Exile the Ninja wrote:
In2ition , esti un carnat afumat. Ada' slanina aici si o felie de pita, te mananc ba.



Last edited by blader on 29-06-2010, 21:21:10; edited 1 time in total
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felixcat

[baka neko]



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Post Posted: 29-06-2010, 21:20:57 | Translate post to: ... (Click for more languages)

tocmai de aceea ti'am arat acest articol pt ca din ce stiu eu (putin) dintele nu are avilitatea de a se regenera atat de mult precum sustine respectivul articol. oricum, ar fi super -


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Malpraxxiss

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Post Posted: 29-06-2010, 22:50:39 | Translate post to: ... (Click for more languages)

felixcat wrote:
tocmai de aceea ti'am arat acest articol pt ca din ce stiu eu (putin) dintele nu are avilitatea de a se regenera atat de mult precum sustine respectivul articol. oricum, ar fi super -


Dintele nu poate sa faca decat dentina si cement, paleativ din pacate.
Ca sa-ti faci o imagine, smaltul contine 97-98% minerale, pe cand dentina doar 70% si osul normal 55%, o diferenta colosala. Daca aveai impresia ca osul normal e dur, priveste cifrele -

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eM
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Post Posted: 29-06-2010, 22:54:05 | Translate post to: ... (Click for more languages)

Mâine e bacu' la mate!

Wish us luck!




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felixcat

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Post Posted: 29-06-2010, 22:58:36 | Translate post to: ... (Click for more languages)

sa pici.
-
acum mergi si arunca sare peste umar sa nu cumva sa se prinda de tine blestemul.



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eM
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Post Posted: 29-06-2010, 23:06:25 | Translate post to: ... (Click for more languages)

Lasã sarea cã nu-s superstițios, în schimb ți-am dat -rep. -





Last edited by eM on 29-06-2010, 23:19:37; edited 1 time in total
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In2ition

[Globul de cristal]



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Post Posted: 29-06-2010, 23:06:42 | Translate post to: ... (Click for more languages)

Malpraxxiss wrote:
felixcat wrote:
http://www.9am.ro/stiri-revista-presei/Incredibil/154298/S-a-inventat-gelul-care-regenereaza-dintii-afectati-de-carii.html

pt Malpraxxis -


In sfarsit, un subiect pe gustul meu -

Am dubii mari in legatura cu articolul respectiv. O sa argumentez de ce cred asta, pornind de la doua premise.

1. Mugurele dentar, din care ia nastere dintele, este format la exterior dintr-o componenta ectodermala embrionara, iar la interior dintr-o compomenta mezenchimala. Componenta ectodermala se diferentiaza in epiteliu adamantin extern si epiteliu adamantin intern, iar cel din urma va da nastere adamantoblastelor (celule precursoare ale smaltului). Adamantoblastele dispuse la exteriorul mugurelui dentar depun smaltul in sens centrifug, adica dinspre centru spre periferie, iar cand dintele erupe organul adamantin FUZIONEAZA cu mucoasa bucala si DISPARE. De aceea smalul nu se mai reface niciodata.

2. Smaltul este alcatuit din cristale de hidroxiapatita, grosso modo vorbind.

9am.ro wrote:
peptida poate fi inclusa intr-un gel sau intr-un film subtire care se aplica peste rana. Plasata in apropierea unei cavitati dentare, stimuleaza celulele sa se regenereze


Afirmatia nu are sens. Nu are ce adamantoblaste sa stimuleze, pentru ele nu mai exista dupa eruptia dentara.
Am incercat sa interpretez altfel. Am zis bine domne', poate s-au referit ca stimuleaza prin cine stie ce mecanisme alte celule care raman in dinte, cum ar fi odontoblastele (care depun dentina, care e formata tot din hidroxiapatita).
In orice situatie, orice tip de substanta pe baza de hidroxiapatita ar umple golul initial, nu se poate comparata cu smaltul. E aproapte imposibil sa creezi cristale de hidroxiapatita de natura celor din smalt (forma, marime si asezare) in vitro intr-o oarecare masura, chiar daca teoretic lucram in mediu viu.


wow
succes maine la bac


We stop looking for monsters under the bed when we realize they're inside of us.

nr913 wrote:
no really, dacã nu era așa țãrancã, și dacã era în bucurești, o luam de nevastã

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Waynee

[BasedTontoVeli]



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Post Posted: 29-06-2010, 23:32:54 | Translate post to: ... (Click for more languages)

eM wrote:
Lasã sarea cã nu-s superstițios, în schimb ți-am dat -rep. -

Owned!



Years tragic:
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95: Eazy's Death
96: 2Pac's Death
97: Biggie's Death
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Florinnn

[Screwed Freak]



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Post Posted: 29-06-2010, 23:33:57 | Translate post to: ... (Click for more languages)

cine imi da si mie net pe tel (vodafone ) plzz -


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d1v1NEEE

[tzup-tzup]



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Post Posted: 29-06-2010, 23:37:58 | Translate post to: ... (Click for more languages)

vodafone?


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Hy2RoGeN
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Post Posted: 29-06-2010, 23:53:53 | Translate post to: ... (Click for more languages)

noapte buna


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