牙本质表面状态对粘结界面影响的激光扫描共聚焦显微镜研究被引量：17

Laser scanning confocal microscope study of wet bonding interface on different dentin bonding surfaces

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摘要目的 :研究不同表面状态下形成的牙本质湿粘结界面的异同。方法 :以RhodamineB为荧光剂 ,用激光扫描共聚焦显微镜 (LSCM)分别观察干燥或湿润粘结时形成的牙本质粘结界面的异同。结果 :湿粘结时 5种粘结系统在牙本质粘结界面都有良好的渗透。以丙酮为溶剂的粘结系统干燥粘结时形成的混合层的厚度有明显的降低 ,牙本质小管中树脂突较细 ,中断现象增多 ,长度缩短。结论 :干燥粘结时 5种粘结剂在牙本质表面的渗透性减弱。 Objective: To study the bonding interface characteristic of five wet bonding systems while bonding on different dentin bonding surfaces. Methods: Rhodamine B was used to label five adhesives(OptiBond Sol o,Single Bond,Gluma One-Bond,Bond-1 and One-Step) in consistency of 0.1%, an d the bonding interface of the 5 wet bonding systems on dry or wet dentin surfa ces was observed with laser scanning confocal microscope. Results: All five bonding systems could infiltrate well into dentin bonding interface when bonding on wet dentin surface. The fluorescence confocal images gave eviden ce of the adhesives penetrated into the widened tubules, lateral tubules and dem ineralized peritubular dentin. Little discontinuity in dentin tubular was observ ed in the images, especially in those of alcohol-water-based adhesives. When b onded in dry dentin surface, the hybrid thickness of acetone-based adhesives de creased significantly. Conclusion: The penetration ability of ad hesives may be reduced significantly on dry dentin surface.

作者李潇施长溪赵信义段建民吴淑华朱光第

机构地区广州军区总医院口腔科西安第四军医大学口腔医学院

出处《实用口腔医学杂志》 CAS CSCD 北大核心 2005年第1期71-74,共4页 Journal of Practical Stomatology

关键词激光扫描共聚焦显微镜湿粘结粘结界面混合层胶原纤维 Laser scanning confocal microcope Wet bonding Bonding interface Hybrid layer Collagen fibril

分类号 R78 [医药卫生—口腔医学]

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参考文献9

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