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首页> 外文期刊>European Journal of Dentistry >Effect of different palatal vault shapes on the dimensional stability of glass fiber-reinforced heat-polymerized acrylic resin denture base material
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Effect of different palatal vault shapes on the dimensional stability of glass fiber-reinforced heat-polymerized acrylic resin denture base material

机译：不同pa穹顶形状对玻璃纤维增​​强热聚合丙烯酸树脂义齿基托材料尺寸稳定性的影响

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Objective:The aim of this study was to determine the effect of different palatal vault shapes on the dimensional stability of a glass fiber reinforced heat polymerized acrylic resin denture base material.Methods:Three edentulous maxilla with shallow, deep and medium shaped palatal vaults were selected and elastomeric impressions were obtained. A maxillary cast with four reference points (A, B, C, and D) was prepared to serve as control. Point (A) was marked in the anterior midline of the edentulous ridge in the incisive papillary region, points (B) and (C) were marked in the right and left posterior midlines of the edentulous ridge in the second molar regions, and point (D) was marked in the posterior palatal midline near the fovea palatina media (Figure 2). To determine linear dimensional changes, distances between four reference points (A–B, A–C, A–D and B–C) were initially measured with a metal gauge accurate within 0.1 mm under a binocular stereo light microscope and data (mm) were recorded.Figure 2.Linear distances between marked reference points A, B, C and D measured with a metal gauge.
机译：目的：本研究的目的是确定不同形状的on穹顶对玻璃纤维增​​强热聚合丙烯酸树脂义齿基托材料尺寸稳定性的影响。并获得弹性模压。准备具有四个参考点（A，B，C和D）的上颌石膏作为对照。点（A）标记在尖锐乳头区域的无齿前中线，点（B）和（C）标记在第二磨牙区域的无齿的左右后中线，点（ D）标记在中央凹中央附近的near后中线（图2）。为了确定线性尺寸变化，首先在双目立体光学显微镜下使用精度在0.1 mm之内的金属量规测量四个参考点（AB，AC，AD和BC）之间的距离，并确定数据（mm）图2用金属量规测量的标记参考点A，B，C和D之间的线性距离

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