Kern M, Thompson V P
Department of Prosthodontics, Dental School, Albert-Ludwigs University, Freiburg, Germany.
J Prosthodont. 1995 Mar;4(1):16-22. doi: 10.1111/j.1532-849x.1995.tb00309.x.
This study evaluated the bond strength and bond durability of new adhesive systems to pure titanium.
Plexiglass tubes filled with composite were bonded to titanium discs. Groups of 24 samples were bonded using six different bonding systems. Subgroups of eight bonded samples were stored in an isotonic artificial saliva solution (37 degrees C) for 1, 30, or 150 days. In addition, the 30- and 150-day samples were thermal cycled for 7,500 or 37,500 cycles between 5 degrees C and 55 degrees C, respectively. After these storage conditions, all samples were debonded in tension.
The bond strength of a conventional bisphenol-A glycidyl methacrylate composite to sandblasted titanium was significantly lower than using chemomechanical bonding systems and decreased slightly during the storage time of 150 days. The additional use of a silane on sandblasted titanium resulted in an insignificant increase in bond strength and decreased over storage time to the same level as on sandblasted-only titanium. Statistically significant higher bond strengths were achieved either with the combination of silica coating and use of a conventional bisphenol-A glycidyl methacrylate composite or with the combination of sandblasting and the use of composites modified with a phosphate monomer. In the latter systems, the bond strengths were only limited by the cohesive strength of the composite resins. A new phosphate monomer containing composite showed a tendency to lose cohesive strength over time (statistically not significant).
Using chemomechanical bonding systems, ie, silica-coating systems or modified composites with adhesive monomers, resulted in 2 to 2.5 times increased bond strength to titanium compared with the bond strength of a conventional bisphenol-A glycidyl methacrylate composite. With chemomechanical bonding systems, the resin bond to titanium was durable over 150 days, even after being stored in water and thermal cycled.
本研究评估了新型粘接系统与纯钛之间的粘接强度和粘接耐久性。
将填充有复合材料的有机玻璃管粘接至钛盘。使用六种不同的粘接系统将每组24个样本进行粘接。将八组已粘接样本的亚组分别在等渗人工唾液溶液（37℃）中储存1天、30天或150天。此外，30天和150天的样本分别在5℃至55℃之间进行7500次或37500次热循环。在这些储存条件之后，所有样本均进行拉伸脱粘。
传统双酚A甲基丙烯酸缩水甘油酯复合材料与喷砂处理钛之间的粘接强度显著低于使用化学机械粘接系统时的强度，并且在150天的储存时间内略有下降。在喷砂处理的钛上额外使用硅烷导致粘接强度增加不显著，并且在储存期间下降至与仅喷砂处理的钛相同的水平。通过二氧化硅涂层与传统双酚A甲基丙烯酸缩水甘油酯复合材料的组合使用，或者通过喷砂处理与使用含磷酸盐单体改性的复合材料的组合使用，均实现了统计学上显著更高的粘接强度。在后者的系统中，粘接强度仅受复合树脂的内聚强度限制。一种含新型磷酸盐单体的复合材料显示出随着时间推移有失去内聚强度的趋势（统计学上不显著）。
与传统双酚A甲基丙烯酸缩水甘油酯复合材料的粘接强度相比，使用化学机械粘接系统，即二氧化硅涂层系统或含粘接单体的改性复合材料，可使与钛的粘接强度提高2至2.5倍。使用化学机械粘接系统时，即使在水中储存并进行热循环后，树脂与钛的粘接在150天内仍保持耐久性。
