结论：3 M光固化复合树脂具有较好的美观性和较高的临床疗效，是用于牙颈部缺损美容修复的良好材料。
Conclusion 3m has good aesthetics results and effective clinical results, which is suitable materials for restoration of tooth cervix defect.
目的比较玻璃离子和光固化树脂两种材料修复牙体楔状缺损的临床效果。
Residual HEMA released from five hybrid dental materials of composite resin and glass ionomer after curing;
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