Dental composite-resin high-strength fiber periodontal bundle band and preparation method thereof

A technology of composite resin and high-strength fiber, which is applied in fiber type, fiber treatment, medical science, etc., can solve the problems of restricting the application of PBO fiber, the fiber is not easy to infiltrate, and the failure of treatment, so as to achieve good biological safety and aesthetic performance, and improve the overall The effect of improving mechanical strength and overall mechanical properties

Inactive Publication Date: 2017-01-25
NANFANG HOSPITAL OF SOUTHERN MEDICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there are many materials available for loose tooth fixation, but all of them have shortcomings: stainless steel wire combined with composite resin band: poor aesthetics, tooth preparation is required, but the mechanical properties of metal wire and flowable resin are poor, and the two The materials cannot form a chemical bond, and shear force often occurs between the interfaces, resulting in stress concentration, resulting in partial or even complete shedding of the composite resin, breaking the ligature wire, and loosening of the teeth again, resulting in failure of the treatment; Good performance, but weak fixation strength, only suitable for temporary fixation; fiber band: can be chemically combined with resin, has better aesthetics and biocompatibility, b

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Example 1: Preparation of grooved high-strength fiber resin composite material

[0030] Raw materials: 2,5-dihydroxyterephthalic acid (MeTHPA, analytically pure); tetraaminopyridine trihydrochloride monohydrate (MeTHPA, analytically pure); polyphosphoric acid (MeTHPA, analytically pure); Phosphorus (MeTHPA, analytically pure); terephthalic acid; 4,6-diaminoresorcinol hydrochloride; silane coupling agent (Z-6040, Dow Corning, USA); bisphenol A glycidyl methacrylate Ester (Bis-GMA, chemically pure, Aldrich Company); Triethylene glycol dimethacrylate (TEGDMA, chemically pure, Aldrich Company); Catalyst camphorol (CQ, chemically pure, Aldrich Company); Initiate auxiliary agent N , N-dimethylaminoethyl methacrylate (DMAEMA, Aldrich); nano-TiO 2 (Particle size 25nm, Sigma company, USA).

[0031] (1) Preparation of PIPD / PBO blended fiber

[0032] A, preparation of PIPD / PPA polymer solution

[0033] Put 2,5-dihydroxyterephthalic acid, tetraaminopyridine trihydrochloride mon...

Embodiment 2

[0057] Example 2: Flexural properties and elastic modulus tests of four different periodontal fiber bands

[0058] Materials: Top 100 periodontal retaining fiber (French Blue Company), connect ultra-strong fiber band (Kerr Company in the United States), everStick PERIO (Finnish Stick Tech Company), self-made PBO composite resin high-strength fiber periodontal band, the selected models are all 5cm×2.5mm×0.15mm.

[0059] (1) For each group of 10 samples, use an electronic digital caliper to measure the width and height of each group of samples at three points, and calculate the average value to obtain the average width and height of the sample.

[0060] (2) According to the IS04049 standard, a three-point flexural strength test was carried out to test its flexural strength (MPa) and elastic modulus (GPa). Fix the specimen on the measuring platform and clamp it tightly. According to the product manual, use a curing light to cure the specimen. Keep the indoor temperature (22±1)°...

Embodiment 3

[0069] Example 3: Self-made periodontal bands for fixing loose teeth

[0070] Materials: loose tooth model, self-made periodontal fiber band, self-etching two-step bonding system (3MESPE, USA), flowable resin (3MESPE, USA), light curing machine (Destsply, Germany).

[0071] Prepare a periodontal band as follows:

[0072] (1) Measure the length of the required fiber bundle.

[0073] (2) Cut to get the required length.

[0074] (3) Apply the etchant for about 30 seconds, rinse thoroughly and dry.

[0075] (4) Apply adhesive on the surface of the acid-etched teeth, keep it for 15 seconds, then blow it with air for 3 seconds, and irradiate it with a light curing lamp for 20 seconds.

[0076] (5) Place the flowing resin about 2mm at the far end of one side, and then cover it with a fiber tape, and light-cure for 30 seconds.

[0077] (6) Coat the entire surface of the fiber tape with flowing resin, cure the entire surface, and polish.

[0078] The periodontal band prepared acco...

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PUM

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Abstract

The invention relates to a dental composite-resin high-strength fiber periodontal bundle band, which is prepared by the following steps of adopting poly p-phenylene benzobisoxazole (PBO) reinforced fibers subjected to surface modification and micromorphology treatment as a reinforcement phase, adopting toughened resin subjected to nano-modification as a matrix, and mixing the PBO reinforced fibers and the toughened resin to form a composite material so as to prepare the periodontal bundle band. According to the dental composite-resin high-strength fiber periodontal bundle band provided by the invention, the problems that an existing periodontal fiber bundle band is insufficient in bending strength, modulus of elasticity in static bending, toughness and other mechanical properties are solved, and the high-performance PBO fiber and a three-dimensional braided structure are introduced into a periodontal bundle band material, so that the overall mechanical strength of the fiber bundle band is improved.

Description

technical field [0001] The invention relates to a composite resin high-strength fiber periodontal band for dentistry and a preparation method thereof, in particular to a poly-p-phenylenebenzobisoxazole (PBO) fiber for a dental periodontal band Reinforced composite materials and methods for their preparation. Background technique [0002] Periodontal disease is a frequently-occurring disease of the oral cavity, and the prevalence rate of periodontal disease in my country is higher than that of dental caries. Periodontal disease is a chronic progressive destructive disease of periodontal tissue, and one of its main clinical symptoms is tooth loosening. The loose teeth and the healthy teeth are connected and fixed together by the periodontal band, forming a new chewing unit to disperse the occlusal force, reduce the load on the periodontal tissue, give the affected tooth a physiological rest, and heal the damaged periodontal tissue Repair to create favorable conditions, so th...

Claims

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Application Information

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IPC IPC(8): A61L31/14A61L31/06D01F8/16D06M13/513D06M101/30
CPCA61L31/14A61L31/06A61L2400/18D01F8/16D06M13/513D06M2101/30C08L79/04
Inventor 邵龙泉梁慧珉胡琛吴珺蓉康译元
Owner NANFANG HOSPITAL OF SOUTHERN MEDICAL UNIV
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