Porcelain-fused-to-metal (PFM) alternatives.
Porcelain-fused-to-metal (PFM) alternatives.
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瓷熔金属 (PFM) 替代品。
DOI：
10.1111/j.1708-8240.2008.00222.x
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发表时间：
2009
期刊：
影响因子：
--
通讯作者：
T. Donovan
中科院分区：
文献类型：
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作者：
T. Donovan
答：毫无疑问，黄金和其他贵金属价格的上涨已经影响了实验室的成本，最近对几家牙科实验室的调查清楚地表明，用高金或高贵重合金制作的烤瓷修复体比贱金属全氟化镁和氧化锆冠更昂贵。这一事实，再加上一些制造商的积极营销，导致许多牙医从全氟甲烷转向更经济的选择。告诫读者，只有在仔细评估他们目前对这些替代方案的了解后才能这样做。首先，基于现有的科学证据，应该明确地指出，PFM(高金或高贵)提供了为患者提供合理美学的牙冠修复的最佳机会，并提供了最大的临床寿命。目前还没有证据表明，任何一种全陶瓷材料都能提供与烤瓷冠相同的潜在寿命。因此，即使它可能比替代方案稍微贵一点，它仍然应该提供给大多数需要全冠的患者。
ANSWER: There is no question that the rising price of gold and other precious metals has affected laboratory costs, and a recent survey of several dental laboratories clearly indicates that PFM restorations fabricated with high gold or high noble alloys are more expensive than base-metal PFMs and zirconia-core crowns. This fact, coupled with the aggressive marketing of a number of manufacturers, has resulted in many dentists switching from PFMs to the more economic options. Readers are cautioned that this should only be done after a careful evaluation of what they currently know about these alternatives. First, it should be unequivocally stated, based on available scientific evidence, that PFM (high gold or high noble) offers the best opportunity to provide patients with a crown restoration that is reasonably esthetic and to provide maximum clinical longevity. It has not been demonstrated that any all-ceramic alternative will provide the same potential life span as PFM. Thus, even though it may be slightly more expensive than the alternatives, it still should be offered to most patients requiring full crowns.