Stober Thomas, Lutz Tanja, Gilde Herbert, Rammelsberg Peter
Department of Prosthodontics, Ruprecht-Karls-Universität Heidelberg, Poliklinik für Zahnärztliche Prothetik'Im Neuenheimer Field 400, D-69120 Heidelberg, Germany.
Dent Mater. 2006 Mar;22(3):243-9. doi: 10.1016/j.dental.2005.03.009. Epub 2005 Aug 9.
The objective of this study was to examine the two-body wear resistance of nine different resin denture teeth and one experimental material.
The two-body wear test was performed in a chewing simulator with an antagonistic Al(2)O(3) ball under an axial load of 40 N for 100,000 cycles. In each test series, an enamel sample was included as a reference. The wear was determined with an optical 3D surface profilometer. For statistical evaluation, SPSS for Windows was used.
The samples of Artiplus (18.7-SD 21.0) and e-Ha (21.2-SD 15.1) showed the lowest volumetric wear (in mm(3)x10(-3)) after 100,000 cycles. The difference from the other materials tested, except NC Veracia Posterior, was statistically significant (p=0.001-0.037). SR-Postaris-DCL (55.0-SD 6.8), SR-Orthosit-PE (61.1-SD 12.4) and Vitapan (72.1-SD 15.9) exhibited medium-sized wear values with low dispersion, whereas Orthognat (80.1-SD 31.6), Premium 8 (84.6-SD 31.4), NC Veracia Posterior (87.0-SD 52.7), SR-Orthotyp-PE (114.6-SD 28.0) and Trubyte Portrait (123.0-SD 45.6) showed high wear values with great variations. Statistically provable differences were found between SR-Orthotyp-PE and SR-Postaris-DCL (p=0.019) and also between SR-Orthotyp-PE and SR-Orthosit-PE (p=0.031). For enamel, a medium-sized wear value of 66.1-SD 76.8 was determined.
The denture teeth examined showed differences in two-body wear resistance. The wear values determined were in some cases higher and in others lower than those of natural enamel. A definite connection between the wear resistance and the chemical composition of the materials could not be found in this investigation.
本研究的目的是检测九种不同树脂义齿牙和一种实验材料的两体耐磨性。
在咀嚼模拟器中，使用对抗性Al₂O₃球在40 N轴向载荷下进行100,000次循环的两体磨损试验。在每个测试系列中，纳入一个牙釉质样本作为对照。使用光学3D表面轮廓仪测定磨损情况。使用Windows版SPSS进行统计评估。
经过100,000次循环后，Artiplus（磨损量18.7 - 标准差21.0）和e - Ha（磨损量21.2 - 标准差15.1）样本的体积磨损（单位：mm³×10⁻³）最低。与其他测试材料相比，除NC Veracia Posterior外，差异具有统计学意义（p = 0.001 - 0.037）。SR - Postaris - DCL（磨损量55.0 - 标准差6.8）、SR - Orthosit - PE（磨损量61.1 - 标准差12.4）和维他灵（磨损量72.1 - 标准差15.9）表现出中等磨损值且离散度低，而Orthognat（磨损量80.1 - 标准差31.6）、Premium 8（磨损量84.6 - 标准差31.4）、NC Veracia Posterior（磨损量87.0 - 标准差52.7）、SR - Orthotyp - PE（磨损量114.6 - 标准差28.0）和特鲁比（磨损量123.0 - 标准差45.6）显示出高磨损值且变化很大。在SR - Orthotyp - PE与SR - Postaris - DCL之间（p =
