快套附着体义齿修复双侧游离端缺失伴余留牙重度磨耗的临床研究
쾌투부착체의치수복쌍측유리단결실반여류아중도마모적림상연구
Clinic analysis of easy ball attachment applied in dentition defect of Kennedy classⅠwith severe abrasion of residual teeth
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