Journal of Peking University(Health Sciences) ›› 2015, Vol. 47 ›› Issue (5): 834-837. doi: 10.3969/j.issn.1671-167X.2015.05.020

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Real temperature of the continuous-wave pluggers

QU Wei1, BAI Wei2, LIANG Yu-hong1,3△, GAO Xue-jun1   

  1. (1.Department of Cariology and Endodontology, 2.Dental Material Laboratory, Peking University School and Hospital of Stomatology, Beijing 100081, China; 3. Dental Clinic, Peking University International Hospital, Beijing 102206, China)
  • Online:2015-10-18 Published:2015-10-18
  • Contact: LIANG Yu-hong E-mail:leungyuhong@sina.com

Abstract:

Objective: To measure the real temperatures on the pluggers of three continuous-wave devices, and to provide theoretical reference to evaluate thermal damage and heat’s influence on the filling materials.  Methods: The dual channel K type thermocouple was contacted to various sizes’ pluggers in three different continuous-wave devices (BeeFill, Elements, B&L), and the highest temperatures at different points (tip, and 2 mm, 5 mm, 10 mm from the tip) of the pluggers (preset temperature was 200 ℃) were recorded. The measurements were performed 5 times. T-test was used to compare the real temperatures at the tips with that set on the display and one-way ANOVA was used to compare the temperatures of the pluggers in different devices, sizes and points. Results: The highest temperature was at the tip of BeeFill 40/0.03 plugger (198.7±7.7) ℃, but there was on statistical differences between that and the preset temperature 200 ℃. The temperatures of the remaining pluggers were obviously lower than 200 ℃(P<0.05). The lowest temperature of the pluggers was detected at 10 mm from the tip of BeeFill 60/0.06 plugger (69.9±4.0) ℃. The highest temperature of each plugger was detected at the tip or 2 mm from the tip (112.1 to 198.7 ℃,and the median was 140.8 ℃). Conclusion: The real temperature of most continuous-wave pluggers included in this study is below the set temperature 200 ℃.

Key words: Temperature, Root canal filling materiak, Plugger

CLC Number: 

  • R783.1
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