Johnston C D, Hussey D L, Burden D J
Division of Restorative Dentistry and Orthodontics, School of Clinical Dentistry, Queen's University of Belfast, Northern Ireland.
Am J Orthod Dentofacial Orthop. 1996 May;109(5):531-4. doi: 10.1016/s0889-5406(96)70138-5.
This in vitro study evaluated the influence of varying etch time on the microstructure of molar buccal enamel. The buccal surfaces of four groups of extracted first molar teeth were etched for 15, 30, 45, and 60 seconds. The etch patterns obtained were photographed with a scanning electron microscope and rated with a 3-grade scale. The 15-second etch time failed to produce any optimal etch patterns. The best etch patterns were found in molars etched for 60 seconds.
这项体外研究评估了不同蚀刻时间对磨牙颊侧釉质微观结构的影响。四组拔除的第一磨牙的颊面分别蚀刻15、30、45和60秒。用扫描电子显微镜拍摄获得的蚀刻图案，并用三级量表进行评级。15秒的蚀刻时间未能产生任何最佳蚀刻图案。在蚀刻60秒的磨牙中发现了最佳蚀刻图案。
