Hayakawa T, Horie K, Aida M, Kanaya H, Kobayashi T, Murata Y
Department of Dental Materials, Nihon University School of Dentistry, Matsudo, Japan.
Dent Mater. 1992 Jul;8(4):238-40. doi: 10.1016/0109-5641(92)90092-q.
The influence of porcelain surface condition and the application of silane agents on the adhesion between resin and dental porcelain were investigated. The experimental variables included three porcelain surface preparations, as polished, etched with phosphoric acid, or etched with hydrofluoric acid and three kinds of commercially available silane coupling agents. The shear bond strength between the light-cured composite and the dental porcelain was measured after one-day immersion in 37 degrees C water. Samples without the silane agent application were also tested as controls. Without the silane agent, hydrofluoric acid-etched specimens had a higher bond strength than polished or phosphoric acid-etched specimens. The combination of hydrofluoric acid-etching and an application of Cosmotech Porcelain Primer increased the bond strengths more than that of phosphoric acid-etching. With the application of Laminabond Porcelain Primer or Optec Silane Coupling Agent, high bond strengths were obtained regardless of the porcelain surface condition. Therefore, it seems the chemical reactions between the porcelain surface and silane agents were responsible for the high shear bond strengths.
研究了瓷表面状况和硅烷偶联剂的应用对树脂与牙科陶瓷之间粘结力的影响。实验变量包括三种瓷表面处理方式，即抛光、用磷酸蚀刻或用氢氟酸蚀刻，以及三种市售的硅烷偶联剂。在37℃水中浸泡一天后，测量光固化复合材料与牙科陶瓷之间的剪切粘结强度。未使用硅烷偶联剂的样品也作为对照进行测试。在未使用硅烷偶联剂的情况下，氢氟酸蚀刻的试样比抛光或磷酸蚀刻的试样具有更高的粘结强度。氢氟酸蚀刻与使用Cosmotech瓷用底漆相结合，比磷酸蚀刻提高了更多的粘结强度。使用Laminabond瓷用底漆或Optec硅烷偶联剂时，无论瓷表面状况如何，都能获得较高的粘结强度。因此，似乎瓷表面与硅烷偶联剂之间的化学反应是高剪切粘结强度的原因。
