Conclusion the fracture strength of premolar teeth filled with lightcuringcomposite resin was higher than filled with amalgam after root canal therapy.
结论根管治疗后用光固化树脂充填前磨牙的各类洞，牙体的抗折强度优于用银汞充填者。
2
Results showed that lightcuringcomposite resin was better than glass ionomer in wedge-shaped ditch restoration.
结果表明，光固化树脂修复楔状缺损明显优于玻璃离子水门汀。
3
Objective To evaluate the reinforced effect of the lightcuringcomposite resins used for crowns and Bridges.