Evaluation method for dentin-resin bonding interface defects

Abstract

The invention belongs to the technical field of oral cavity bonding repair, and relates to a dentin-resin bonding interface defect evaluation method, which comprises: 1, preparing a dentin-resin observation sample; step 2, setting observation parameters of a scanning electron microscope, and bombarding the dentin-resin bonding interface of the observation sample manufactured in the step 1 through electron beams emitted by the scanning electron microscope, so that the defect part of the dentin-resin bonding interface is damaged; and step 3, observing the damaged part through a scanning electron microscope, and positioning the dentin-resin bonding interface defect to realize positioning detection of the dentin-resin bonding interface defect. According to the method, the dentin-resin bonding interface defect is positioned and detected in a simpler, more convenient, quicker and more intuitive manner, and the problems that the false positive rate of dye dip dyeing is relatively high, the influence factors of artificial aging are excessive, the subjectivity and the operation sensitivity of naked eye identification are high, and the time consumption and the cost of nanoindentation are high are solved.

Description

Technical field [0001] The present invention belongs to the field of oral adhesion prosthetic technology, relates to a method of evaluating dentin bonding interface defects, specifically relates to a dentin - resin bonding interface defect evaluation method. Background [0002] The detection of defects in the dentin-resin bonding interface is a very important evaluation item when studying the effect of dental bonding. At present, the detection of dentin-resin adhesion interface defects is mainly through indirect means, such as nano leakage and micro-leakage detection. [0003] The traditional nano-leakage and micro-leakage are through the aging treatment method, so that the sample has interface damage, and then through the dye impregnation, so that the dye penetrates into the interface is destroyed and not tightly closed, and then observed under the optical or electron microscope to evaluate the defects of the interface. [0004] However, traditional techniques have great shortco...

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Problems solved by technology

[0007] Aiming at the problems existing in the prior art, the purpose of the present invention is to provide a method for evaluating the defects of the dentin-resin bonding interface, and realize the evaluation of the dentin-resin bonding interface in a simpler, faster and more intuitive way. The positioning detection of interface defects solves the problems of high false positive rate of dye dipping, too many influencing factors of artificial aging, strong subjectivity of naked eye identification and strong operation sensitivity, and high time-consuming and costly problems of nano-indentation

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