Intrapupal temperature variation during Er,Cr: YSGG enamel irradiation on carries prevention
J. appl. oral sci
;
16(2): 95-99, Mar.-Apr. 2008. ilus, tab
Article
in English
| LILACS
| ID: lil-479752
ABSTRACT
Studies have shown the cariostatic effect of Er,CrYSGG (2.78 mm) laser irradiation on human enamel and have suggested its use on caries prevention. However there are still no reports on the intrapulpal temperature increase during enamel irradiation using parameters for caries prevention. The aim of this in vitro study was to evaluate the temperature variation in the pulp chamber during human enamel irradiation with Er,CrYSGG laser at different energy densities. Fifteen enamel blocks obtained from third molars (3 x 3 x 3 mm) were randomly assigned to 3 groups (n=5) G1 - Er,CrYSGG laser 0.25 W, 20 Hz, 2.84 J/cm², G2 - Er,CrYSGG laser 0.50 W, 20 Hz, 5.68 J/cm², G3 - Er,CrYSGG laser 0.75 W, 20 Hz, 8.52 J/cm². During enamel irradiation, two thermocouples were fixed in the inner surface of the specimens and a thermal conducting paste was used. One-way ANOVA did not show statistically significant difference among the experimental groups (a=0.05). There was intrapulpal temperature variation <0.1ºC for all irradiation parameters. In conclusion, under the tested conditions, the use of Er,CrYSGG laser with parameters set for caries prevention lead to an acceptable temperature increase in the pulp chamber.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Body Temperature
/
Dental Caries
/
Dental Enamel
/
Dental Pulp
/
Lasers, Solid-State
Type of study:
Controlled clinical trial
Limits:
Humans
Language:
English
Journal:
J. appl. oral sci
Journal subject:
Dentistry
Year:
2008
Type:
Article
/
Project document
Affiliation country:
Brazil
Institution/Affiliation country:
University of São Paulo/BR
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