Temperature Changes Induced by Low-Energy CO2 Laser Irradiation in Enamel

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F98%3A00006061" target="_blank" >RIV/68407700:21340/98:00006061 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Temperature Changes Induced by Low-Energy CO2 Laser Irradiation in Enamel

Popis výsledku v původním jazyce

Studies by Stern [1964, J. Dent. Res., 43 (Suppl.), p. 873 (Abs. 307)] demonstrated that a laser could be used to heat the surface of human enamel, increasing enamel resistance to surface demineralisation. Recent studies have shown the CO2 laser to be suitable in preventive dentistry. Because the mechanism of inhibition is not still exactly known we have focused on finding the relation between energy density, wavelength and induced surface temperature. We worked with a tunable TEA CO2 laser using 9.3, 9.6, 10.3, 10.6 mu m wavelength and energy density between 0.1 and 2 J/cm(2). This corresponded to the temperature range of 100 to 4000 degrees C. We prepared a 200 mu m thick enamel slide which we irradiated from the front side. The temperature was measured at the opposite side with a microthermometer and the front side temperature was obtained by heat-transfer equation calculation.

Název v anglickém jazyce

Temperature Changes Induced by Low-Energy CO2 Laser Irradiation in Enamel

Popis výsledku anglicky

Studies by Stern [1964, J. Dent. Res., 43 (Suppl.), p. 873 (Abs. 307)] demonstrated that a laser could be used to heat the surface of human enamel, increasing enamel resistance to surface demineralisation. Recent studies have shown the CO2 laser to be suitable in preventive dentistry. Because the mechanism of inhibition is not still exactly known we have focused on finding the relation between energy density, wavelength and induced surface temperature. We worked with a tunable TEA CO2 laser using 9.3, 9.6, 10.3, 10.6 mu m wavelength and energy density between 0.1 and 2 J/cm(2). This corresponded to the temperature range of 100 to 4000 degrees C. We prepared a 200 mu m thick enamel slide which we irradiated from the front side. The temperature was measured at the opposite side with a microthermometer and the front side temperature was obtained by heat-transfer equation calculation.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

10306 - Optics (including laser optics and quantum optics)

Projekt

<a href="/cs/project/IZ1895" target="_blank" >IZ1895: Ovlivnění průběhu infekčního procesu ozářením krve dusíkovým laserem.</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

1998

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Laser Physics

ISSN

1054-660X

e-ISSN

1555-6611

Svazek periodika

8

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

RU - Ruská federace

Počet stran výsledku

4

Strana od-do

336-339

Kód UT WoS článku

000072474100056

EID výsledku v databázi Scopus

2-s2.0-20444391053