Related Experiment Video
Updated: Mar 31, 2026
09:49
Continuous-wave Thulium Laser for Heating Cultured Cells to Investigate Cellular Thermal Effects
Published on: June 30, 2017
8.3K
[Real temperature of the continuous-wave pluggers].
Wei Qu1, Wei Bai2, Yu-hong Liang3
1Department of Cariology and Endodontology, Peking University School and Hospital of Stomatology, Beijing 100081, China.
Summary
Continuous-wave plugger temperatures often fall below the set 200°C, with significant heat loss along the plugger. This impacts thermal damage assessments for dental filling materials.
Area of Science:
- Dental Materials Science
- Endodontics
- Thermal Analysis
Background:
- Continuous-wave (CW) devices are used for root canal filling.
- Accurate plugger tip temperature is crucial for effective thermal condensation and to prevent tissue damage.
- Previous studies lack precise temperature measurements on CW pluggers.
Purpose of the Study:
- To measure the actual temperatures on pluggers of three CW devices.
- To provide data for evaluating thermal damage and heat's effect on filling materials.
Main Methods:
- Thermocouple measurements on pluggers from BeeFill, Elements, and B&L devices at preset 200°C.
- Temperatures recorded at tip, 2mm, 5mm, and 10mm from the tip.
- Statistical analysis using T-test and one-way ANOVA.
Main Results:
- Highest tip temperature (198.7±7.7°C) on BeeFill 40/0.03, not statistically different from 200°C.
- Other pluggers showed significantly lower temperatures (P<0.05).
- Temperatures decreased with distance from the tip, reaching as low as 69.9±4.0°C (BeeFill 60/0.06 at 10mm).
Conclusions:
- Most CW pluggers operate below their set temperature.
- Significant temperature drop occurs along the plugger length.
- Findings necessitate re-evaluation of thermal damage potential and material behavior.
