CN104905981A - Composite resin used for dental filling and preparation method thereof - Google Patents
Composite resin used for dental filling and preparation method thereof Download PDFInfo
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- CN104905981A CN104905981A CN201510289433.8A CN201510289433A CN104905981A CN 104905981 A CN104905981 A CN 104905981A CN 201510289433 A CN201510289433 A CN 201510289433A CN 104905981 A CN104905981 A CN 104905981A
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Abstract
The invention belongs to the field of nanometer materials, and particularly relates to composite resin used for dental filling and a preparation method thereof. The composite resin used for dental filling includes, by weight, 55-70 parts of polyacrylic resin, 15-30 parts of chitin, 10-15 parts of nano-silica, 1-8 parts of plasticizer, 0.1-2 parts of coupling agents, 0.2-1 part of antioxidant and 5-10 parts of caries preventive agents. In the preparation process, the polyacrylic resin and the chitin are mixed evenly; other materials are added and mixed evenly; and finally double-screw extrusion granulation is carried out. The composite resin used for dental filling is good in biocompatibility, good in abrasion resistance and suitable for dental filling on the aspect of viscosity. The preparation method is simple, feasible and suitable for production.
Description
Technical field
The invention belongs to field of nanometer material technology, be specifically related to the composite resin and preparation method thereof for dental filling.
Background technology
Namely dental filling repairs the method for dental defect by manmade materials.All because of dental caries, wedge shaped defect, wound etc. cause tissue of tooth defect person all need repair, to recover its shape and function.When pathological changes involves dental pulp, when even causing periapical disease, first should treat dental pulp, then row dental filling.
Before dental filling, dentist comprehensively can check patient oral cavity, comprehensively understands and suitable process the oral healthy condition of patient, and according to the quantity of patient's dental caries, treat position, the lesion degree of dental caries formulates best dental filling recovery scenario.Dental filling comprises cavity preparation and filling two key steps, and after cavity preparation is good, isolation saliva, sterilization nest hole, allotment filler is inserted in nest hole, immediately carves profile, and removing exceedes the too high part of occlusal surface, in order to avoid cause iatrogenic Occlusal Trauma.After filling tooth material filling, dentist can carry out polishing to dental filling surface, in case filling tooth material is painted, can clean timely the residue remained in after dental filling in dental surface and oral cavity simultaneously.The dental caries of some patient is comparatively large, needs the reparation carrying out corona after dental filling, and dentist can carry out detailed doctor's advice explanation to patient simultaneously.
Filling tooth material has silver amalgam, composite resin, glass ionomer etc.Wherein firm, the not easily consume but attractive in appearance not of silver amalgam, composite resin is attractive in appearance, close to the natural color of tooth, but intensity is not as silver amalgam, easy loss, so it is good and be easy to the composite resin that dental filling operates to need to develop a kind of wearability.
Summary of the invention
The object of the invention is to provide a kind of composite resin for dental filling and preparation method thereof to solve the deficiencies in the prior art, this composite resin has wear-resisting, good biocompatibility, is easy to the advantages such as dental filling operation.
The technical solution used in the present invention is as follows:
For the composite resin of dental filling, comprise the following raw material according to mass fraction meter: polyacrylic resin 55-70 part, chitin 15-30 part, nano silicon 10-15 part, plasticizer 1-8 part, coupling agent 0.1-2 part, antioxidant 0.2-1 part, caries preventive agent 5-10 part.
Further, described coupling agent is KH550, KH560, KH570 or KH792.
Further, described antioxidant is antioxidant 164, antioxidant 1010 and the antioxidant 1076 mixture that 1:1.6:0.7 is composite in mass ratio.
Further, the fusing point of the described composite resin for dental filling is 60-75 DEG C.
The preparation method of the above-described composite resin for dental filling, comprises the steps:
(1) first add in high-speed mixer by polyacrylic resin and chitin by quality proportioning, carry out mixing 30min, the rotating speed of high-speed mixer is 50-70r/min;
(2) add remaining raw material again, carry out mixing 10min;
(3) material after mix homogeneously is joined twin-screw extruder comminutor; carry out extruder grain; twin-screw extruder temperature range is respectively: the first district temperature 100-110 DEG C; second district temperature 115-125 DEG C; 3rd district temperature 130-140 DEG C, the 4th district temperature 145-155 DEG C, the 5th district temperature 160-170 DEG C; rotating speed is 40-100r/min, obtains the described composite resin for dental filling.
In described step (3), twin-screw extruder temperature range is respectively: first district's temperature 104 DEG C, second district's temperature 120 DEG C, the 3rd district's temperature 136 DEG C, the 4th district's temperature 154 DEG C, the 5th district's temperature 166 DEG C.
Beneficial effect of the present invention is:
The first, in the present invention, nano silicon is evenly dispersed in this composite resin fully, can improve its wearability and improve surface smoothness;
Second, composite resin for dental filling of the present invention comprises chitin, there is good biocompatibility, and the effect of thickening can be played, mechanical strength is good, and its intensity therefore can be made to increase, and according to the proportioning in the present invention, during the composite resin melting obtained, viscosity is suitable for, and is convenient to dental filling mechanically actuated;
3rd, preparation method of the present invention is simple, is suitable for producing.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail, the raw material used in the present invention unless otherwise noted, all by commercial acquisition.
Embodiment 1
For the composite resin of dental filling, comprise the following raw material according to mass fraction meter: polyacrylic resin 55 parts, chitin 15 parts, nano silicon 10 parts, plasticizer 1 part, coupling agent KH550 0.1 part, antioxidant 0.2 part, caries preventive agent 5 parts.Wherein, described antioxidant is antioxidant 164, antioxidant 1010 and the antioxidant 1076 mixture that 1:1.6:0.7 is composite in mass ratio.
The preparation method of the above-described composite resin for dental filling, comprises the steps:
(1) first add in high-speed mixer by polyacrylic resin and chitin by quality proportioning, carry out mixing 30min, the rotating speed of high-speed mixer is 50r/min;
(2) add remaining raw material again, carry out mixing 10min;
(3) material after mix homogeneously is joined twin-screw extruder comminutor; carry out extruder grain; twin-screw extruder temperature range is respectively: first district's temperature 100 DEG C; second district's temperature 115 DEG C; 3rd district's temperature 130 DEG C, the 4th district's temperature 145 DEG C, the 5th district's temperature 160 DEG C; rotating speed is 40r/min, obtains the described composite resin for dental filling.
Embodiment 2
For the composite resin of dental filling, comprise the following raw material according to mass fraction meter: polyacrylic resin 58 parts, chitin 18 parts, nano silicon 12 parts, plasticizer 3 parts, coupling agent KH560 0.5 part, antioxidant 0.5 part, caries preventive agent 6 parts.Wherein, described antioxidant is antioxidant 164, antioxidant 1010 and the antioxidant 1076 mixture that 1:1.6:0.7 is composite in mass ratio.
The preparation method of the above-described composite resin for dental filling, comprises the steps:
(1) first add in high-speed mixer by polyacrylic resin and chitin by quality proportioning, carry out mixing 30min, the rotating speed of high-speed mixer is 55r/min;
(2) add remaining raw material again, carry out mixing 10min;
(3) material after mix homogeneously is joined twin-screw extruder comminutor; carry out extruder grain; twin-screw extruder temperature range is respectively: first district's temperature 102 DEG C; second district's temperature 118 DEG C; 3rd district's temperature 132 DEG C, the 4th district's temperature 148 DEG C, the 5th district's temperature 162 DEG C; rotating speed is 50r/min, obtains the described composite resin for dental filling.
Embodiment 3
For the composite resin of dental filling, comprise the following raw material according to mass fraction meter: polyacrylic resin 61 parts, chitin 21 parts, nano silicon 13 parts, plasticizer 5 parts, coupling agent KH570 1 part, antioxidant 0.5 part, caries preventive agent 7 parts.Wherein, described antioxidant is antioxidant 164, antioxidant 1010 and the antioxidant 1076 mixture that 1:1.6:0.7 is composite in mass ratio.
The preparation method of the above-described composite resin for dental filling, comprises the steps:
(1) first add in high-speed mixer by polyacrylic resin and chitin by quality proportioning, carry out mixing 30min, the rotating speed of high-speed mixer is 60r/min;
(2) add remaining raw material again, carry out mixing 10min;
(3) material after mix homogeneously is joined twin-screw extruder comminutor; carry out extruder grain; twin-screw extruder temperature range is respectively: first district's temperature 104 DEG C; second district's temperature 120 DEG C; 3rd district's temperature 136 DEG C, the 4th district's temperature 154 DEG C, the 5th district's temperature 166 DEG C; rotating speed is 60r/min, obtains the described composite resin for dental filling.
Embodiment 4
For the composite resin of dental filling, comprise the following raw material according to mass fraction meter: polyacrylic resin 65 parts, chitin 25 parts, nano silicon 14 parts, plasticizer 6 parts, coupling agent KH792 1.5 parts, antioxidant 0.8 part, caries preventive agent 8 parts.Wherein, described antioxidant is antioxidant 164, antioxidant 1010 and the antioxidant 1076 mixture that 1:1.6:0.7 is composite in mass ratio.
The preparation method of the above-described composite resin for dental filling, comprises the steps:
(1) first add in high-speed mixer by polyacrylic resin and chitin by quality proportioning, carry out mixing 30min, the rotating speed of high-speed mixer is 65r/min;
(2) add remaining raw material again, carry out mixing 10min;
(3) material after mix homogeneously is joined twin-screw extruder comminutor; carry out extruder grain; twin-screw extruder temperature range is respectively: first district's temperature 108 DEG C; second district's temperature 122 DEG C; 3rd district's temperature 138 DEG C, the 4th district's temperature 155 DEG C, the 5th district's temperature 168 DEG C; rotating speed is 80r/min, obtains the described composite resin for dental filling.
Embodiment 5
For the composite resin of dental filling, comprise the following raw material according to mass fraction meter: polyacrylic resin 70 parts, chitin 30 parts, nano silicon 15 parts, plasticizer 8 parts, coupling agent KH550 2 parts, antioxidant 1 part, caries preventive agent 10 parts.Wherein, described antioxidant is antioxidant 164, antioxidant 1010 and the antioxidant 1076 mixture that 1:1.6:0.7 is composite in mass ratio.
The preparation method of the above-described composite resin for dental filling, comprises the steps:
(1) first add in high-speed mixer by polyacrylic resin and chitin by quality proportioning, carry out mixing 30min, the rotating speed of high-speed mixer is 70r/min;
(2) add remaining raw material again, carry out mixing 10min;
(3) material after mix homogeneously is joined twin-screw extruder comminutor; carry out extruder grain; twin-screw extruder temperature range is respectively: first district's temperature 110 DEG C; second district's temperature 125 DEG C; 3rd district's temperature 140 DEG C, the 4th district's temperature 155 DEG C, the 5th district's temperature 170 DEG C; rotating speed is 100r/min, obtains the described composite resin for dental filling.
Performance test
Carry out performance test to embodiment of the present invention 1-5 products obtained therefrom, result is as following table:
Table 1 properties of product test data
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | |
| Fusing point/DEG C | 60 | 65 | 72 | 71 | 75 |
| Hot strength/MPa | 163 | 160 | 168 | 162 | 158 |
| Bending strength/MPa | 201 | 205 | 214 | 210 | 208 |
| Rockwell hardness number | 321 | 324 | 330 | 325 | 319 |
As seen from the above table, embodiment 1-5 products obtained therefrom all has good performance, wherein embodiment 3 products obtained therefrom best results.
Claims (6)
1. for the composite resin of dental filling, it is characterized in that, comprise the following raw material according to mass fraction meter: polyacrylic resin 55-70 part, chitin 15-30 part, nano silicon 10-15 part, plasticizer 1-8 part, coupling agent 0.1-2 part, antioxidant 0.2-1 part, caries preventive agent 5-10 part.
2. the composite resin for dental filling according to claim 1, is characterized in that, described coupling agent is KH550, KH560, KH570 or KH792.
3. the composite resin for dental filling according to claim 1, is characterized in that, described antioxidant is antioxidant 164, antioxidant 1010 and the antioxidant 1076 mixture that 1:1.6:0.7 is composite in mass ratio.
4. the composite resin for dental filling according to claim 1, is characterized in that, the fusing point of the described composite resin for dental filling is 60-75 DEG C.
5. the preparation method of the composite resin for dental filling described in any one of claim 1-4, is characterized in that, comprise the steps:
(1) first add in high-speed mixer by polyacrylic resin and chitin by quality proportioning, carry out mixing 30min, the rotating speed of high-speed mixer is 50-70r/min;
(2) add remaining raw material again, carry out mixing 10min;
(3) material after mix homogeneously is joined twin-screw extruder comminutor; carry out extruder grain; twin-screw extruder temperature range is respectively: the first district temperature 100-110 DEG C; second district temperature 115-125 DEG C; 3rd district temperature 130-140 DEG C, the 4th district temperature 145-155 DEG C, the 5th district temperature 160-170 DEG C; rotating speed is 40-100r/min, obtains the described composite resin for dental filling.
6. the preparation method of the composite resin for dental filling according to claim 5, it is characterized in that, in step (3), twin-screw extruder temperature range is respectively: first district's temperature 104 DEG C, second district's temperature 120 DEG C, 3rd district's temperature 136 DEG C, 4th district's temperature 154 DEG C, the 5th district's temperature 166 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510289433.8A CN104905981A (en) | 2015-05-29 | 2015-05-29 | Composite resin used for dental filling and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510289433.8A CN104905981A (en) | 2015-05-29 | 2015-05-29 | Composite resin used for dental filling and preparation method thereof |
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| CN104905981A true CN104905981A (en) | 2015-09-16 |
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| CN201510289433.8A Withdrawn CN104905981A (en) | 2015-05-29 | 2015-05-29 | Composite resin used for dental filling and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105213201A (en) * | 2015-09-30 | 2016-01-06 | 苏州蔻美新材料有限公司 | Teeth repairing material and preparation method thereof |
| CN105232340A (en) * | 2015-10-14 | 2016-01-13 | 苏州蔻美新材料有限公司 | Composite material for dental prosthesis and preparation method of composite material |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86108923A (en) * | 1986-12-10 | 1988-06-22 | 杰弗里·詹姆斯·奇塔姆 | Tooth cavity and tooth fissure sealant |
| CN1545986A (en) * | 2003-12-09 | 2004-11-17 | 西北工业大学 | Resin base composite material dowel pin for dental surgery |
| CN1691929A (en) * | 2002-10-24 | 2005-11-02 | 彭特恩临床科技有限公司 | Dental filling material |
| CN101507686A (en) * | 2009-04-07 | 2009-08-19 | 李榕卿 | Teeth composition capable of increasing abrasion resistance and obdurability based on composite modification theory |
| CN102008396A (en) * | 2009-09-08 | 2011-04-13 | 张元元 | Tooth filling adhesive |
| CN102008743A (en) * | 2009-09-08 | 2011-04-13 | 张元元 | Adhesive for bones and teeth |
-
2015
- 2015-05-29 CN CN201510289433.8A patent/CN104905981A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86108923A (en) * | 1986-12-10 | 1988-06-22 | 杰弗里·詹姆斯·奇塔姆 | Tooth cavity and tooth fissure sealant |
| CN1691929A (en) * | 2002-10-24 | 2005-11-02 | 彭特恩临床科技有限公司 | Dental filling material |
| CN1545986A (en) * | 2003-12-09 | 2004-11-17 | 西北工业大学 | Resin base composite material dowel pin for dental surgery |
| CN101507686A (en) * | 2009-04-07 | 2009-08-19 | 李榕卿 | Teeth composition capable of increasing abrasion resistance and obdurability based on composite modification theory |
| CN102008396A (en) * | 2009-09-08 | 2011-04-13 | 张元元 | Tooth filling adhesive |
| CN102008743A (en) * | 2009-09-08 | 2011-04-13 | 张元元 | Adhesive for bones and teeth |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105213201A (en) * | 2015-09-30 | 2016-01-06 | 苏州蔻美新材料有限公司 | Teeth repairing material and preparation method thereof |
| CN105232340A (en) * | 2015-10-14 | 2016-01-13 | 苏州蔻美新材料有限公司 | Composite material for dental prosthesis and preparation method of composite material |
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Application publication date: 20150916 |