Garman T A, Outhwaite W C, Hawkins I K, Smith C D
J Am Dent Assoc. 1983 Nov;107(5):762-3. doi: 10.14219/jada.archive.1983.0345.
Twenty-two pairs of extensive amalgam restorations were placed in 19 patients. One amalgam of each pair had self-threading pin retention, and the other had dentinal slot retention. Evaluations were done at baseline, at one, and two years. After two years, 17 pairs of amalgams were available for evaluations. The data obtained can be summarized as follows: 100% (17) of the slot-retained amalgams were clinically acceptable, whereas 94.1% (16) of the pin-retained amalgams were acceptable. It can be concluded that, in clinical usage, dentinal slot retention is as effective as self-threading pin retention in extensive amalgam restorations.
在19名患者口中放置了22对大面积汞合金修复体。每对中的一个汞合金采用自攻螺纹钉固位，另一个采用牙本质槽固位。在基线、一年和两年时进行评估。两年后，有17对汞合金可供评估。获得的数据总结如下：94.1%（16/17）的牙本质槽固位汞合金在临床上是可接受的，而94.1%（16/17）的自攻螺纹钉固位汞合金也是可接受的。可以得出结论，在临床应用中，牙本质槽固位在大面积汞合金修复体中与自攻螺纹钉固位同样有效。
