A new model system for measuring intracanal temperatures.
A new model system was developed which allows intracanal temperature measurements to be recorded during repeated obturations of a human tooth root canal. A human central incisor was embedded in clear orthodontic resin and sectioned longitudinally. Sixteen thermocouples were secured at 2-mm intervals along two surfaces of the root canal. The thermocouples were connected to a computerized temperature recording system to measure intracanal temperatures produced by high-temperature thermoplasticized injectable gutta-percha. The system was capable of recording 16 simultaneous temperatures every second with an accuracy of a hundredth degree centigrade. There was a linear increase in the recorded temperatures in the root canal. However, the actual temperatures were lower than expected.
Weller
R N
RN
U.S. Army Dental Activity, Fort Gordon, GA.
Jurcak
J J
JJ
Donley
D L
DL
Kulild
J C
JC
D001831:Body Temperature; D003786:Dental Pulp Cavity; D006171:Gutta-Percha; D006358:Hot Temperature; D006801:Humans; D007180:Incisor; D012389:Root Canal Obturation
D006171:Gutta-Percha