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首页> 外文期刊>Journal of dentistry >Effects of halogen light irradiation variables (tip diameter, irradiance, irradiation protocol) on flexural strength properties of resin-based composites.
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Effects of halogen light irradiation variables (tip diameter, irradiance, irradiation protocol) on flexural strength properties of resin-based composites.

机译：卤素灯辐照变量（尖端直径，辐照度，辐照方案）对树脂基复合材料抗弯强度性能的影响。

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OBJECTIVE: Investigation of halogen light irradiation variables (tip diameter, irradiance, irradiation protocol) on flexural strength and modulus of four methacrylate resin-based composites (RBCs). METHODS: Rectangular bar-shaped specimens (25mmx2mmx2mm; n=20 per group) of four RBCs were irradiated at varying irradiances (640 and 790mW/cm(2); standard and boosted mode) with different tip diameters (8, 11, 13 and 25mm) and for the 8mm Turbo light tip diameter at irradiances of 880 and 1040mW/cm(2) (standard and boosted mode). Following irradiation the specimens were stored in a light-proof container for 24h at 37+/-1 degrees C and tested in three-point flexure. One-way analyses of variance were made at P=0.05, guided as necessary by Tukey's correction in multiple partial analyses, in addition to a Weibull analysis. RESULTS: The mean three-point flexure strengths, Weibull moduli and flexure moduli of the four RBC materials, irradiated with varying irradiances, tip diameters and irradiation protocols highlighted no significant differences although the values were material specific. Similarly the 8mm conventional and Turbo tip diameter resulted in no significant differences for varying irradiances and irradiation protocols. CONCLUSION: Within the limitations of the experiment halogen tip diameter, irradiance and irradiation protocol have no influence on three-point flexural strength and modulus data. The efficacy of the overlapping irradiation regime was upheld for the conditions tested.
机译：目的：研究卤素光辐照变量（尖端直径，辐照度，辐照规程）对四种基于甲基丙烯酸酯树脂的复合材料（RBC）的弯曲强度和模量的影响。方法：矩形条形样品（25mmx2mmx2mm;每组n = 20）以四个辐照度（640和790mW / cm（2）;标准和增强模式）以不同的尖端直径（8、11、13和10）进行辐照。 25mm）和8mm Turbo灯头直径（在880和1040mW / cm（2）的辐照度下）（标准和增强模式）。辐照后，将样品在37 +/- 1摄氏度的防光容器中存放24小时，并进行三点弯曲测试。除Weibull分析外，在必要时通过Tukey校正在多个部分分析中进行P = 0.05的单向方差分析。结果：四种RBC材料的平均三点弯曲强度，Weibull模量和弯曲模量，用不同的辐照度，尖端直径和辐照方案进行辐照，尽管这些值是材料特定的，但无显着差异。同样，常规的8毫米直径和Turbo尖端直径对于变化的辐照度和辐照方案也没有明显差异。结论：在实验的限制范围内，卤素尖端直径，辐照度和辐照方案对三点弯曲强度和模量数据没有影响。对于所测试的条件，维持了重叠照射方案的功效。

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