Randall Ros C
Clinical Affairs, 3M ESPE, St Paul, Minn, USA.
Pediatr Dent. 2002 Sep-Oct;24(5):489-500.
The aim of this study was to carry out a review of the use and efficiency of preformed metal crowns (PMCs) for primary and permanent molar teeth. A literature search of English language journals was carried out using MEDLINE. Papers that addressed areas related to the use of PMCs regarding indications for use, placement techniques, risks, longevity, cost effectiveness and utilization were included in the review. Eighty-three papers were traced which fulfilled the above criteria, the majority addressing PMCs in primary molar teeth. Over half the papers were concerned with placement techniques and indications for use, with fewer papers reporting on clinical studies. The clinical data on PMCs spanned a considerable number of years and involved heterogeneous populations of patients, different makes and designs of crown, and differences among the operators and evaluators who were involved in the studies. The results, however, were in agreement that PMCs are superior to amalgam restorations for multisurface cavities in primary molar teeth.
本研究的目的是对预成金属冠（PMC）用于乳磨牙和恒磨牙的使用情况及效果进行综述。使用MEDLINE对英文期刊进行文献检索。本综述纳入了涉及PMC使用相关领域的论文，包括使用指征、放置技术、风险、使用寿命、成本效益和利用率。共检索到83篇符合上述标准的论文，其中大多数涉及乳磨牙的PMC。超过一半的论文关注放置技术和使用指征，报告临床研究的论文较少。关于PMC的临床数据跨越了相当长的时间，涉及不同人群的患者、不同品牌和设计的牙冠，以及参与研究的操作者和评估者之间的差异。然而，结果一致表明，对于乳磨牙的多面洞，PMC优于汞合金修复体。
