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نویسندگان مقالات پربازدید :
مجله رفتار مکانیکی مواد زیست پزشکی
جزئیات رویداد
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همایش ، رویداد ، ژورنال

  • microtensile bond strength of etch and rinse versus self-etch adhesive systems

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    • تاریخ ارائه: 1394/01/01
    • تاریخ انتشار در تی پی بین: 1394/01/01
    • تعداد بازدید: 616
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     the aim of this study was to compare the microtensile bond strength of the etch and rinse adhesive versus one-component or two-component self-etch adhesives. twelve intact human molar teeth were cleaned and the occlusal enamel of the teeth was removed. the exposed dentin surfaces were polished and rinsed, and the adhesives were applied. a microhybride composite resin was applied to form specimens of 4 mm height and 6 mm diameter. the specimens were sectioned perpendicular to the adhesive interface to produce dentin–resin composite sticks, with an adhesive area of approximately 1.4 mm2. the sticks were subjected to tensile loading until failure occurred. the debonded areas were examined with a scanning electron microscope to determine the site of failure. the results showed that the microtensile bond strength of the etch and rinse adhesive was higher than that of one-component or two-component self-etch adhesives. the scanning electron microscope examination of the dentin surfaces revealed adhesive and mixed modes of failure. the adhesive mode of failure occurred at the adhesive/dentin interface, while the mixed mode of failure occurred partially in the composite and partially at the adhesive/dentin interface. it was concluded that the etch and rinse adhesive had higher microtensile bond strength when compared to that of the self-etch adhesives.

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