Two-body wear of resin and ceramic denture teeth in comparison to human enamel
Two-body wear of resin and ceramic denture teeth in comparison to human enamel
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DOI：
10.1016/j.dental.2007.04.012
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发表时间：
2008-04-01
期刊：
影响因子：
5
通讯作者：
Kern, Matthias
中科院分区：
文献类型：
--
作者：
Ghazal, Muhamad;Yang, Bin;Kern, Matthias
目标.在双轴咀嚼模拟器中评价不同人工义齿与滑石瓷球对抗时的两体耐磨性。在咀嚼模拟器中测试了人造义齿牙齿，包括陶瓷牙齿Bonartic CT（R）、复合树脂牙齿Condyloform II NFC（R）、丙烯酸树脂牙齿Bonartic TCR（R）、Cornath（R）、Polystar Selection（R）、SR Orthotyp DCL（R）和Vitapan Cuspiform（R），以及人类上颌前磨牙。在各种咀嚼循环（49 N，高达1，200，000次循环）后，使用轮廓测定法和光学宏观镜测量垂直物质损失和体积损失，分析耐磨性。使用单因素方差分析（ANOVA）对数据进行统计学分析，然后在p <0.05时进行Fisher检验（LSD）。在1，200，000个咀嚼周期后，复合树脂牙的平均垂直物质损失和体积损失（117 μ m和0.144 mm（3））显著低于所有丙烯酸树脂牙（149-166 μ m和0.220-0.292 mm（3））（p
Objectives. To evaluate the two-body wear resistance of different artificial denture teeth when opposed to steatite ceramic balls in a dual-axis chewing simulator.Methods. Artificial denture teeth including the ceramic tooth Bonartic CT (R), the composite resin tooth Condyloform II NFC (R), the acrylic resin teeth Bonartic TCR (R), Orthognath (R), Polystar Selection (R), SR Orthotyp DCL (R), and Vitapan Cuspiform (R), and human maxillary premolars were tested in a chewing simulator. Wear resistance was analyzed measuring vertical substance loss and volume loss using profilometry and an optical macroscope after various chewing cycles (49 N, up to 1,200,000 cycles). Data were statistically analyzed using one-way analysis of variance (ANOVA) followed by the Fisher test (LSD) at p < 0.05.Results. After 1,200,000 chewing cycles the mean vertical substance loss and volume loss for the composite resin teeth (117 mu m and 0.144 mm(3)) were significantly lower than for all acrylic resin teeth (149-166 mu m and 0.220-0.292 mm(3)) (p