Determining a relationship between applied occlusal load and articulating paper mark area.
Determining a relationship between applied occlusal load and articulating paper mark area.
复制标题
确定所施加的咬合负荷与表达纸张标记区域之间的关系。
DOI：
10.2174/1874210600701010001
复制
发表时间：
2007
影响因子：
1.3
通讯作者：
Radke, John
中科院分区：
文献类型：
--
作者：
Carey, Jason P;Craig, Mark;Kerstein, Robert B;Radke, John
咬合纸标记大小已被广泛接受在牙科界描述咬合负荷。本研究的目的是确定是否存在任何直接关系之间的发音纸标记面积和应用咬合负荷。单轴试验机反复施加压缩载荷，从25N开始，逐渐持续到450N，对一对环氧树脂牙模施加铰接纸。将生成的纸标记（n = 600）拍照，并使用照相图像分析和素描程序分析标记区域。双尾Student 's t检验不相等方差比较了12颗不同牙齿之间标记区域的测量大小（p < 0.05）。数据的图形解释表明，标记面积随着载荷的增加呈非线性增加。当数据分组比较牙间标记面积的一致性时，观察到在相同施加载荷下不同牙间标记面积的高度可变性。学生t检验发现，在大约80%的情况下，标记区域的大小存在显著差异。纸痕面积与外加载荷无直接关系，但随载荷的增加，纸痕面积呈增加趋势。在选择调整牙齿时，操作人员不应假设纸标记的大小，而应准确描述标记的咬合接触力含量。
Articulating paper mark size has been widely accepted in the dental community to be descriptive of occlusal load. The objective of this study is to determine if any direct relationship exists between articulating paper mark area and applied occlusal load. A uniaxial testing machine repeatedly applied a compressive load, beginning at 25N and incrementally continuing up to 450N, to a pair of epoxy dental casts with articulating paper interposed. The resultant paper markings (n = 600) were photographed, and analyzed the mark area using a photographic image analysis and sketching program. A two-tailed Student’s t-test for unequal variances compared the measured size of the mark area between twelve different teeth (p < 0.05). Graphical interpretation of the data indicated that the mark area increased non-linearly with increasing load. When the data was grouped to compare consistency of the mark area between teeth, a high variability of mark area was observed between different teeth at the same applied load. The Student’s t-test found significant differences in the size of the mark area approximately 80% of the time. No direct relationship between paper mark area and applied load could be found, although the trend showed increasing mark area with elevating load. When selecting teeth to adjust, an operator should not assume the size of paper markings, accurately describing the markings’ occlusal contact force content.