Savas Selcuk, Botsali Murat S, Kucukyilmaz Ebru, Sari Tugrul
Department of Pediatric Dentistry, Faculty of Dentistry, Izmir Katip Celebi University.
Dent Mater J. 2014;33(6):764-9. doi: 10.4012/dmj.2013-274. Epub 2014 Oct 11.
The aim of this study was to evaluate temperature changes in the pulp chamber during polymerization of four different pulp-capping materials using a LED-light-curing-unit in the contact and noncontact positions. A pulpal circulation mechanism was simulated to measure increases in temperature in four pulp-capping materials that were applied to the occlusal dentin surface. Two different distances were used between the tip of the unit and the material surface during polymerization; 0 and 2 mm. The data were statistically analyzed using factorial-ANOVA, one-way-ANOVA, and Tukey's HSD test. There were statistically differences between contact and noncontact groups (p<0.05). Contact groups produced significantly lower temperature rise compared with noncontact groups. The highest and lowest mean temperature increases were calculated for the Biner LC and the TheraCal LC, respectively. Considering the effects of temperature rising, the distance of the light curing units from restorations should not be overlooked as well as the types of the materials.
本研究的目的是评估在接触和非接触位置使用发光二极管光固化机时，四种不同盖髓材料聚合过程中髓腔内的温度变化。模拟牙髓循环机制，以测量应用于咬合面牙本质表面的四种盖髓材料的温度升高情况。在聚合过程中，光固化机尖端与材料表面之间使用了两种不同的距离；0毫米和2毫米。使用析因方差分析、单因素方差分析和Tukey's HSD检验对数据进行统计学分析。接触组和非接触组之间存在统计学差异（p<0.05）。与非接触组相比，接触组产生的温度升高明显更低。Biner LC和TheraCal LC的平均温度升高分别计算为最高和最低。考虑到温度升高的影响，光固化机与修复体的距离以及材料类型都不应被忽视。
