Ernst Claus-Peter, Aksoy Erwin, Stender Elmar, Willershausen Brita
Department of Operative Dentistry, Augustusplatz 2, 55131 Mainz, Germany.
Am J Dent. 2009 Apr;22(2):122-8.
To evaluate the retentive strength of a resin cement in combination with a conventional adhesive (Variolink II/Syntac Classic), two resin cements with self-etching adhesives (Panavia F 2.0/ED Primer, Multilink/Multilink Primer A/B), two self-adhering cements (RelyX Unicem Aplicap, Maxcem), and a resin-modified glass-ionomer cement (FujiCem) after cementation of zirconium-oxide ceramic crowns (LAVA) on extracted human teeth.
160 extracted teeth (n=20) were prepared in a standardized manner (10 degrees, h=3 mm). The crowns' inner surfaces were air-abraded/sandblasted (Rocatec Pre). Additional pretreatment was carried out with Multilink (metal primer or Monobond S). With RelyX Unicem Aplicap, an additional group that also received Rocatec Plus pretreatment was examined. Immediately after thermocycling (x5000, 5/55 degrees C), 50% of the luted ceramic crowns (n=10) were pulled off along the path of insertion (Zwick 1425); the remaining samples (n = 10) were tested after 1 year of water storage. Statistical analysis was performed using the Wilcoxon Mann-Whitney U-test and Bonferroni adjustment at the 5% level of significance.
The retentive strength values (N/mm2) after 1 year of water storage were (Min/Q1/Median/Q3/Max): Variolink II/Syntac: 1.0/1.9/2.5/3.3/5.2, Panavia F 2.0: 1.5/1.8/2.1/3.6/5,4, Multilink/Metallprimer: 2.9/4.6/5.3/9.4/11,7, Multilink/Monobond S: 4.1/4.8/5.4/7.7/12.6, RelyX Unicem Aplicap: 3.9/6.3/7.5/9.0/10.7, RelyX Unicem Aplicap/Rocatec Plus: 4.4/5.8/7.2/9.4/11.9, Maxcem: 0.9/2.2/3.0/3.3/4.5, FujiCem: 1.6/2.7/4.3/5.4/6.7. RelyX Unicem Aplicap and Multilink showed the highest median retentive strength values. Long-term water storage did not affect the retentive strength.
评估在拔除的人牙上粘结氧化锆陶瓷全冠（LAVA）后，一种树脂水门汀与传统粘结剂（Variolink II/Syntac Classic）、两种含自酸蚀粘结剂的树脂水门汀（Panavia F 2.0/ED Primer、Multilink/Multilink Primer A/B）、两种自粘结水门汀（RelyX Unicem Aplicap、Maxcem）以及一种树脂改性玻璃离子水门汀（FujiCem）结合时的固位强度。
160颗拔除的牙齿（n = 20）按标准化方式预备（10度，h = 3mm）。全冠内表面进行空气喷砂处理（Rocatec Pre）。Multilink进行额外的预处理（金属底漆或Monobond S）。对于RelyX Unicem Aplicap，还检测了一组接受Rocatec Plus预处理的样本。热循环（x5000，5/55摄氏度）后立即沿就位道方向拔出50%粘结的陶瓷全冠（n = 10）（Zwick 1425）；其余样本（n = 10）在储存1年后进行测试。使用Wilcoxon Mann-Whitney U检验和Bonferroni校正进行5%显著性水平的统计分析。
储存1年后的固位强度值（N/mm2）为（最小值/第一四分位数/中位数/第三四分位数/最大值）：Variolink II/Syntac：1.0/1.9/2.5/3.3/5.2，Panavia F 2.0：1.5/1.8/2.1/3.6/5.4，Multilink/金属底漆：2.9/4.6/5.3/9.4/11.7，Multilink/Monobond S：4.1/4.8/5.4/7.7/12.6，RelyX Unicem Aplicap：3.9/6.3/7.5/9.0/10.7，RelyX Unicem Aplicap/Rocatec Plus：4.4/5.8/7.2/9.4/11.9，Maxcem：0.9/2.2/3.0/3.3/4.5，FujiCem：1.6/2.7/4.3/5.4/6.7。RelyX Unicem Aplicap和Multilink显示出最高的中位固位强度值。长期水储存未影响固位强度。
