Maryniuk G A, Kaplan S H
J Am Dent Assoc. 1986 Jan;112(1):39-45. doi: 10.14219/jada.archive.1986.0012.
A cross-sectional survey of 571 clinicians was conducted to obtain information about expected and observed restoration longevity. Clinicians believed that average large amalgam, small amalgam, and cast restorations lasted 6, 11, and 13 years, respectively. Patients were thought to be responsible for 47%, dentists for 30%, and materials used for 23% of restoration failures. The clinicians perceived the restorations that they placed to be more long-lasting than those placed by other clinicians. Clinical measurements of restoration longevity were shown to be influenced by the judgment criteria used by clinicians.
对571名临床医生进行了一项横断面调查，以获取有关预期和观察到的修复体寿命的信息。临床医生认为，大型银汞合金修复体、小型银汞合金修复体和铸造修复体的平均使用年限分别为6年、11年和13年。修复体失败的原因中，患者被认为占47%，牙医占30%，所使用的材料占23%。临床医生认为他们所放置的修复体比其他临床医生放置的修复体更持久。研究表明，修复体寿命的临床测量结果受临床医生使用的判断标准的影响。
