Goldman M, DeVitre R, Pier M
J Prosthet Dent. 1984 Oct;52(4):485-8. doi: 10.1016/0022-3913(84)90329-9.
The tensile strengths for post lengths of 4 and 7 mm were compared in vitro with 3 different cementing media. In one group, the post preparation was rinsed with 5.25% NaOCl and in the other with 17% EDTA followed by 5.25% NaOCl. The EDTA-NaOCl flush had a profound effect when unfilled resin was used to cement the posts. A 4 mm post cemented with resin in the EDTA-NaOCl group was one and one-half times as retentive as a 7 mm post cemented with zinc phosphate and twice as strong as the 7 mm post with polycarboxylate cement. The 7 mm post cemented with the resin after the EDTA-NaOCl rinse was twice as resistant to displacement as the 7 mm post cemented with zinc phosphate and three times stronger than the polycarboxylate cement.
在体外比较了长度为4毫米和7毫米的桩的拉伸强度，使用了3种不同的粘结介质。在一组中，桩道预备后用5.25%的次氯酸钠冲洗，另一组先用17%的乙二胺四乙酸冲洗，然后再用5.25%的次氯酸钠冲洗。当使用未填充树脂粘结桩时，乙二胺四乙酸-次氯酸钠冲洗有显著效果。在乙二胺四乙酸-次氯酸钠组中，用树脂粘结的4毫米桩的固位力是用磷酸锌粘结的7毫米桩的1.5倍，是用聚羧酸锌粘结的7毫米桩的2倍。在乙二胺四乙酸-次氯酸钠冲洗后用树脂粘结的7毫米桩的抗位移能力是用磷酸锌粘结的7毫米桩的2倍，强度是聚羧酸锌粘结桩的3倍。
