Fabricating a better mouthguard. Part II: The effect of color on adaptation and fit
Fabricating a better mouthguard. Part II: The effect of color on adaptation and fit
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DOI：
10.1111/j.1600-9657.2007.00570.x
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发表时间：
2008-04-01
影响因子：
2.5
通讯作者：
Signorile, Joseph
中科院分区：
文献类型：
--
作者：
Del Rossi, Gianluca;Lisman, Peter;Signorile, Joseph
热成型工艺包括将塑料片材加热到临界温度，然后将加热的材料成型为三维结构。考虑到定制的护齿是使用热成型工艺生产的，塑料片与牙列石模的适应性可能会受到护齿材料被加热能力的影响。本研究的目的是确定材料颜色是否影响定制护齿的适应性和适合性。在这项调查中使用了12个石模型。使用每个模型生产了五个护齿套。这些护齿套是使用透明、白色、黑色、蓝色和绿色的醋酸乙烯酯制成的。从相应的石头模型上取下各种颜色护齿所需的力是用一个装在专门设计的装置中的应变计来确定的。每个护齿套在两个不同的拉力角度-45度和90度下测试三次。使用去除护齿套所需的平均力进行的统计学检验揭示了颜色相互作用的角度。事后分析显示，从各自的石头模型中取出透明护齿套所需的平均力明显小于拉开蓝色、黑色和绿色护齿套所需的力。在两个测试角度下均观察到透明护齿套和深色护齿套之间的这种差异，黑色护齿套除外，其仅在以90度角度移除时与透明护齿套不同。本研究的结果表明，通过使用深色护齿套材料，可以实现上级适应性，从而生产出更牢固的护齿套。
The thermoforming process involves the heating of plastic sheets to a critical temperature followed by the shaping of the heated material into a three-dimensional structure. Given that custom-fabricated mouthguards are produced using the thermoforming process, the adaptation of plastic sheets to a stone model of the dentition is likely to be affected by the ability of the mouthguard material to be heated. The purpose of this study was to establish if material color affected the adaptation and fit of custom-made mouthguards. Twelve stone models were used in this investigation. Five mouthguards were produced using each model. These mouthguards were made using clear-, white-, black-, blue- and green-colored ethyl vinyl acetate. The force required to remove the various colored mouthguards from the corresponding stone models was determined using a strain gauge housed within a specially designed apparatus. Each of the mouthguards were tested three times at two different angles of pull -45 degrees and 90 degrees. Statistical tests performed using the average amount of force required for mouthguard removal revealed an angle by color interaction. Post hoc analyses revealed that the mean force required to remove the clear-colored mouthguards from their respective stone models was significantly less than the force required to pull away blue-, black- and green-colored mouthguards. This difference between clear- and dark-colored mouthguards was observed at both angles tested with the exception of the black mouthguard which differed from the clear-colored mouthguard only when removed at an angle of 90 degrees. The results of the present study indicate that by using dark-colored mouthguard material, one can achieve superior adaptation and thus produce a more firmly fitting mouthguard.