[Effects of microwave power on temperature change in dental pulpal chamber in vitro].
OBJECTIVE
To explore the effects of microwave powers on temperature changes of dental pulpal chamber in vitro.


METHODS
96 isolated teeth were prepared in three degrees of dental occlusal wear according to Smith BG's report. Temperature change values in dental pulpal chamber were recorded by thermometer (DM 6801A) while the different affect time and microwave powers acted directly and with 75% sodium fluoride glycerine paste on face of isolated teeth separately in room temperature.


RESULTS
The degree of temperature in dental pulpal chamber was going up follow the raising microwave power and prolonging time. The temperature in dental pulpal chamber with microwave acting sodium fluoride on dental occlusal was higher than acting directly dental occlusal.


CONCLUSIONS
The microwave power, time and degree of dental occlusal wear are very important factors on temperature change in dental pulpal chamber in our study.
Gui
He-Ming
HM
Dept. of Oral Medicine, Stomatology Hospital of Foshan City, Foshan, China.
Du
Li-Juan
LJ
Zhang
Jian-Ming
JM
Huang
Da-Hong
DH
D003782:Dental Pulp; D003786:Dental Pulp Cavity; D066298:In Vitro Techniques; D008872:Microwaves; D013696:Temperature