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Dentin bonding strength improving method

A technology of bonding strength and dentin, which is applied in the bonding method of surface pretreatment, dentistry, filling teeth, etc. It can solve the problems such as the toxicity of inhibitors and cross-linking agents and the unsolvable staining effect, and improve the bonding strength. Effect

Inactive Publication Date: 2019-03-08
XIAN MEDICAL UNIV
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AI Technical Summary

Problems solved by technology

However, the toxicity and staining effect of inhibitors and cross-linking agents cannot be resolved; ⑤The bionic remineralization method can form mineral deposits in the demineralized dentin collagen fibers and in the gaps between fibers, so that the exposed collagen can be remineralized The material is wrapped and covered to protect the collagen fibers and improve the bonding effect of the dentin, but the bonding interface needs to be soaked in the remineralization solution, and further transformation is required for clinical application

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0015] A method of increasing the bond strength of dentin:

[0016] 1. The fresh isolated tooth specimens were cooled by running water in a slow cutting machine, and the occlusal surface was excised to expose the dentin, and polished with 600, 800, and 1000 water sandpaper in sequence to prepare a standard smear layer, and ultrasonically cleaned for 5 minutes;

[0017] 2. The control group adopts the standard bonding method, and the bonding interface is not treated in any way;

[0018] 3. The dentin surface of the experimental group was acid-etched with 37% phosphoric acid gel for 15 seconds, rinsed with running water for 30 seconds, moistened with a damp clean paper towel, opened the helium cylinder, adjusted the pressure to 0.5MPa, and controlled the flow rate at 3L / min ;

[0019] 4. Turn on the plasma generator, adjust the input voltage of the high-voltage power supply to 20V, adjust the current to 0.6A, and spray the tooth surface with the plasma jet for 5 seconds;

[00...

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Abstract

The invention discloses a dentin bonding strength improving method. The dentin bonding strength improving method specifically comprises the following steps of, after tooth preparation is completed, etching the surface of dentin with etching agent for 15 seconds, then rinsing teeth with flowing water, wipe-drying the teeth, and spray-brushing the surface of the teeth through helium plasma jet flowfor 5 seconds, wherein the specific parameters of spray-brushing comprises regulating the input voltage of a high-voltage power source to be 20 V, current to be 0.6 A and helium flow to be 3L / min; moisturizing the surface of the teeth with a wet dust-free tissue, applying bonding agent, and after the bonding agent is cured for 10 seconds, piling resin. The dentin bonding strength improving methodcontrols the parameters of low-temperature and normal-pressure plasma production within the temperature range acceptable for the teeth, so that a bonding interface can be in contact with low-temperature and normal-pressure plasma jet flow continuously for a sufficient time period to achieve the effects of improving the bonding strength.

Description

technical field [0001] The invention relates to the technical field of oral cavity bonding, in particular to a method for improving the bonding strength of dentin. Background technique [0002] Since enamel and dentin do not contain cells, once dental hard tissue defects caused by caries, wear, abnormal tooth development and other diseases occur, they cannot be repaired by themselves; with the help of oral bonding technology, it can meet the aesthetic restoration and On the basis of minimally invasive restoration, joint resin restores the shape and function of the defective tooth tissue, and the bonding technology plays an important role in modern dental treatment. However, due to the particularity of dentin structure and composition, how to obtain effective dentin bonding has become a difficulty and hot spot in the field of oral bonding. Compared with enamel, dentin contains 70% inorganic matter, 18% organic matter (mainly collagen), 10% water, and 1.5% other organic matte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61C5/20C09J5/02
CPCA61C5/20C09J5/02
Inventor 王丹杨朱勇唐成芳左艳萍马新扬
Owner XIAN MEDICAL UNIV
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