5种临时修复树脂聚合峰值温度的体外比较
In vitro comparison of peak polymerization temperatures of 5 provisional restoration resins.
作者信息
Lieu C, Nguyen T M, Payant L
机构信息
Faculty of Dentistry, Laval University.
出版信息
J Can Dent Assoc. 2001 Jan;67(1):36-9.
BACKGROUND
The heat produced by provisional restoration materials may injure the dental pulp. This study measured and compared peak temperatures during polymerization of 5 materials used in the fabrication of provisional restorations.
METHODS
The tested materials were 2 self-curing resins (Integrity and Protemp) and 3 dual-cure resins (Iso-Temp, TCB Dual Cure and Provipont DC). A mould the size of a maxillary molar tooth was fabricated to contain 0.5 cc of resin. The temperature rise of the different materials was recorded every 10 seconds over a 10-minute period.
RESULTS
The rise in temperature of Integrity (peak temperature of 33.8 degrees C) and Protemp Garant (35.6 degrees C) was significantly higher than the rise in temperature of Iso-Temp (29.5 degrees C), TCB Dual Cure (28.4 degrees C) and Provipont DC (29.5 degrees C).
CONCLUSION
Use of the dual-cure resins in provisional restorations may reduce the risk of pulp injury.
背景
临时修复材料产生的热量可能会损伤牙髓。本研究测量并比较了用于制作临时修复体的5种材料聚合过程中的峰值温度。
方法
测试材料为2种自凝树脂（Integrity和Protemp）和3种双重固化树脂（Iso-Temp、TCB Dual Cure和Provipont DC）。制作一个上颌磨牙大小的模具，其中容纳0.5立方厘米的树脂。在10分钟内每隔10秒记录不同材料的温度升高情况。
结果
Integrity（峰值温度为33.8摄氏度）和Protemp Garant（35.6摄氏度）的温度升高显著高于Iso-Temp（29.5摄氏度）、TCB Dual Cure（28.4摄氏度）和Provipont DC（29.5摄氏度）的温度升高。
结论
在临时修复体中使用双重固化树脂可能会降低牙髓损伤的风险。
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