CN103286898A - Preparation method of dental cement material bar-shaped sample as well as mold thereof - Google Patents
Preparation method of dental cement material bar-shaped sample as well as mold thereof Download PDFInfo
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- CN103286898A CN103286898A CN2013102652151A CN201310265215A CN103286898A CN 103286898 A CN103286898 A CN 103286898A CN 2013102652151 A CN2013102652151 A CN 2013102652151A CN 201310265215 A CN201310265215 A CN 201310265215A CN 103286898 A CN103286898 A CN 103286898A
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Abstract
The invention discloses a preparation method of a dental cement material bar-shaped sample as well as a mold thereof. The preparation method of a dental cement material bar-shaped sample comprises the following steps of: taking primary impression mold polyvinyl siloxane for dentistry, punching the primary impression mold polyvinyl siloxane for dentistry by a stainless steel cylinder or a plastic cylinder; then filling blended dental cement materials directly in holes of the primary impression mold polyvinyl siloxane for dentistry, cutting up the primary impression mold polyvinyl siloxane for dentistry after the dental cement materials are cured, so that the primary impression mold polyvinyl siloxane for dentistry is peeled completely from the cured dental cement materials, thereby obtaining the dental cement material bar-shaped sample with a clean surface and no pollution. The mold for the preparation method of the dental cement material bar-shaped sample comprises a primary impression mold polyvinyl siloxane base body for dentistry, and the primary impression mold polyvinyl siloxane base body for dentistry is provided with holes for filling the dental cement materials directly.
Description
Technical field
The present invention relates to the field, oral cavity, be specifically related to preparation method and the mould thereof of the bar-shaped sample of a kind of tooth section's cement material.
Background technology
According to the ISO relevant criterion, when the physics and chemistry of studying tooth section cement material and biology performance, the material that needs a person with the qualifications of a general is prepared into the certain standard shape, as in the subcutaneous Implantation Test of research tooth section cement material, tooth section cement material need be prepared into diameter and be 1.5mm, highly be the cylindric sample of 5mm (Φ 1.5mm * 5mm); In compressive strength test, tooth section cement material need be prepared into diameter and be 4mm, high for the cylindric sample of 6mm (Φ 4mm * 6mm), or diameter to be 6mm, height be the cylindric sample of 12mm (Φ 6mm * 12mm).
According to ISO9917:1991 " the water base cement of tooth section ", the cylinder sample preparation methods of tooth section cement generally adopts the division metal die, be about to the powder of tooth section cement and liquor through accent is mixed after filling in metal die, pressurization 1 hour, take out and reject have that bubble reaches, edge breakage and defective sample.It is simple to adopt above-mentioned metal die to prepare the method for specimen material, and the sample size of making is more accurate, but its shortcoming is also clearly, for example:
1) can only make a sample, each sample need spend more than 1 hour at every turn;
Then need several molds when 2) needing to make several sample simultaneously;
3) tooth section cement material contains carboxyl such as glass-ion cement spit of fland, PAZ zinc's cement etc. more, carboxyl in the material can with the metal ion-chelant on division metal die surface, therefore, tooth section cement material can bond with division metal die surface, thereby cause specimen material to be difficult for spinning off from the division metal die, as taking out by force, then can cause the local failure of specimen material, even sample is fractureed.In order to overcome tooth section cement material and metal die adhesion problem, can only before the cement material filling of tooth section, will on mould inner wall, be coated with the paraffin that last layer 3% microcrystalline wax maybe can be dissolved in benzinum equably, so that the demoulding, but this layer material also has certain influence to the curing of tooth section cement material surface even pollutes, nonetheless, the bar-shaped test specimen of tooth section cement material that makes is also often bad by the village, causes qualification rate lower.
Summary of the invention
In order to overcome above-mentioned technological deficiency, the object of the invention provides preparation method and the mould thereof of a kind of yield rate height and the bar-shaped sample of free of contamination tooth section's cement material.This method also has makes simple, cheap, specimen material and is easy to the demoulding, disposable advantage of making a plurality of samples.
The present invention adopts following technical scheme:
The preparation method of the bar-shaped sample of a kind of tooth section's cement material of the present invention, may further comprise the steps: get a tooth section preliminary impression polyvinyl siloxane, with stainless steel cylinder or plastic cylinder, punch with the preliminary impression polyvinyl siloxane in tooth section, then, directly the tooth section cement material that accent is mixed is inserted tooth section with in the hole on the preliminary impression polyvinyl siloxane, treat to cut tooth section preliminary impression polyvinyl siloxane after the tooth section cement material cured, make tooth section with peeling off fully on the tooth section cement material of preliminary impression polyvinyl siloxane after solidify, finally obtain cleaning surfaces, the bar-shaped test specimen of free of contamination tooth section's cement material.
A kind of preparation method's for the bar-shaped sample of described tooth section's cement material of the present invention mould, comprise: tooth section is with preliminary impression polyvinyl siloxane matrix, is provided with hole for direct filling tooth section cement material in tooth section with preliminary impression polyvinyl siloxane matrix.
Compared with prior art, the present invention has following advantage:
(1) tooth section cement material contains carboxyl such as glass-ion cement spit of fland, PAZ zinc's cement etc. more, carboxyl in the material can with the metal ion-chelant on division metal die surface, therefore, tooth section cement material can bond with division metal die surface, thereby cause specimen material to be difficult for spinning off from the division metal die, as taking out by force, then can cause the local failure of specimen material, even sample is fractureed.In order to overcome tooth section cement material and metal die adhesion problem, can before the cement material filling of tooth section, will on mould inner wall, be coated with the paraffin that last layer 3% microcrystalline wax maybe can be dissolved in benzinum equably, but this layer material also there is certain influence to the curing of tooth section cement material surface.For the division metal die, silicon rubber mould has the following advantages:
A) because ion chelating does not take place with preliminary impression polyvinyl siloxane surface in carboxyl and the tooth section of tooth section cement material, therefore, referring to Fig. 1, tooth section cement material and tooth section are easy to take out specimen material with the no adhesion problem in preliminary impression polyvinyl siloxane surface.
B) tooth section does not influence the curing of tooth section cement material with the preliminary impression polyvinyl siloxane, before the cement material filling of tooth section, need on the inwall of hole, not be coated with the paraffin that last layer 3% microcrystalline wax maybe can be dissolved in benzinum equably, therefore can avoid material such as this microcrystalline wax that tooth section cement material surface is solidified the influence that produces, the tooth section bar-shaped test specimen of cement material that makes is avoided pollution-free (referring to Fig. 2).
C) though heavy build silastic material has characteristics such as stronger elasticity, toughness and intensity, it can not tolerate the sharp cutter cutting.Therefore can adopt knife blade to cut silicon rubber mould, can take out the bar-shaped sample of tooth section cement material easily, and its surface be intact, not damage.This advantage is particularly useful for making subcutaneous implant surgery specimen material, its diameter is little of 1.5mm, even the bar-shaped sample of tooth section cement material of minor diameter also can be obtained and not take place to damage or fracture (referring to Fig. 2) by the present invention like this, even and damage or fracture (referring to Fig. 3) also very easily take place for the preparation of the bar-shaped sample of larger-diameter tooth section's cement material in existing method.
D) a large amount of contrast tests prove: yield rate of the present invention is much higher than prior art, table 1 is the result of contrast test, adopts the bar-shaped sample of tooth section cement material that 10 subcutaneous implant surgeries of the present invention and the prior art for preparing use (comparing result of the yield rate of Φ 1.5mm * 5mm) respectively that is:.
Table 1
(2) prior art namely divides metal die and can only make a sample at every turn, and each sample need spend more than 1 hour.With respect to the division metal die, the present invention can be according to tooth section cement material behavior and sample making requirement, several samples of disposable preparation, for example, making subcutaneous implant surgery with specimen material when (its two ends only need to justify blunt getting final product), the disposable dozens of sample for preparing of the present invention; When specimen material was used in preparation compression strength experiment, the present invention is disposable to prepare 4-6 sample.Therefore, the present invention have make simple, consuming time few, the efficient advantages of higher.
(3) prior art can only be made a sample at every turn, then needs several molds when needing to make several sample simultaneously, and its processing and fabricating needs special plant equipment, shortcomings such as length consuming time.Compared to existing technology, main part model of the present invention adopts silicon rubber to make, and in making mold process, does not need special machine equipment, finishes by hand, and weak point consuming time, only needs get final product in 5-10 minute, and have cheap, be easy to advantage such as acquisition.
(4) because mould of the present invention is to be provided with hole for direct filling tooth section cement material in tooth section with preliminary impression polyvinyl siloxane matrix, that is to say, tooth section cement material can directly charge into tooth section with in the hole on the preliminary impression polyvinyl siloxane matrix, and can guarantee that the tooth section cement material after the moulding is easy to the demoulding, and insert tooth section cement material again after need not at the hole inwall releasing agent layers such as paraffin to be set, therefore, it is simple that the present invention has making, cheap, specimen material is easy to the demoulding and can guarantees the not contaminated advantage of tooth section cement material.
Description of drawings
The implant surgery that Fig. 1 the is schematic diagram of glass-ion cement spit of fland sample demoulding state, shown in Figure 1 is the situation of utilizing after scalpel incision tooth section uses the preliminary impression polyvinyl siloxane.
Fig. 2 is that the sample serviceability rate is 100% by the implant surgery that the method for the invention makes glass-ion cement spit of fland sample.
Fig. 3 adopts prior art namely to divide metal die to prepare subcutaneous implant surgery with glass-ion cement spit of fland sample, and (Φ 1.5mm * 5mm) is fractureed during the demoulding sample shown in Figure 3.
Fig. 4 is mould structure schematic diagram of the present invention.
The specific embodiment
1. embodiment 1: subcutaneous implant surgery with cylindric tooth section cement specimen material (Φ 1..5mm * 5mm) preparation:
1) according to the subcutaneous implant surgery requirement with tooth section cement specimen material, preparation or select the rectangular die box (10cm * 5cm * 0.5cm), die cover (having dozens of Φ 1.5mm aperture), mold cylinder body (and Φ 1.5mm * 1cm), tooth section with silicon rubber, transfer mix paper, cutter, cement plugger etc. mixed in accent.
2) clean both hands earlier, get each 1 spoon of the heavy build matrix of equivalent silastic material and catalyst with measuring spoon, with pointing kneading matrix and catalyst at least 30 seconds, evenly coordinate until color, to mix doughy heavy build silicon rubber then and place in the mold box, the concrete making of silastic material is according to the specification operation of purchasing product.
3) after the employing die cover flattens doughy heavy build silicon rubber gently, rapidly several mold cylinder bodies are vertically inserted in the silicon rubber, until mold box bottom and directly contact with it.
4) after heavy build silicon rubber solidifies 3min in mold box, take out mold cylinder body and die cover respectively, can prepare and have the negative model of mold cylinder body (silicon rubber mould of Φ 1.5mm * 5mm) is removed the unnecessary overlap of the negative model of silicon rubber mould cylinder aperture periphery and got final product.
5) method of recommending by manufactory, (each sample is with the once new cement preparation that is in harmonious proportion to be in harmonious proportion the tooth section cement of capacity by certain powder liquor ratio, the capsule cement is in harmonious proportion simultaneously with an above capsule and prepares sample) after, selecting for use cement plugger that uniform cement cement mixed in accent places in the silicon rubber mould, exceed mould slightly, and pressurization, filling.But for the each filling 2-3 female cavity of short tooth section cement hardening time, but continued operation, until all female cavity fillings are complete.
6) silicon rubber mould that will have a tooth section cement material moves into climatic chamber (1 ℃ of 37 ℃ of scholar, relative humidity is not less than 30%) 1 hour, silicon rubber mould is taken out from mold box, adopt knife blade to cut silicon rubber mould, taking out tooth section cement specimen material and rejecting has bubble, edge breakage and defective sample, adopts dental handpiece that circle obtuse is worn at the specimen material two ends and gets final product.
7) once can prepare the dozens of sample by above-mentioned steps, will prepare what a sample should namely immerse in the distilled water, and places climatic chamber 23h scholar 0.5h, standby.
2. embodiment 2: compression strength experiment with cylindric tooth section cement specimen material (Φ 4mm * 6mm) prepare:
1) according to make the compression strength experiment with tooth section cement specimen material (requirement of Φ 4mm * 6mm), preparation or select the rectangular die box (10cm * 5cm * 6mm), die cover (can have 6 Φ 4mm apertures) mold cylinder body (and Φ 4mm * 12mm), screw clamp, tooth section with silicon rubber, transfer mix paper, cutter, cement plugger etc. mixed in accent.
2) clean both hands earlier, record according to the specification of purchasing product, get each 3 spoons of the heavy build matrix of equivalent silastic material and catalyst with measuring spoon, with pointing kneading matrix and catalyst at least 30 seconds, evenly coordinate until color, will mix doughy heavy build silicon rubber then and place in the mold box.
3) after the employing die cover flattens doughy heavy build silicon rubber gently, rapidly several mold cylinder bodies are vertically inserted in the silicon rubber, until mold box bottom and directly contact with it.
4) after heavy build silicon rubber solidifies 3min in mold box, take out mold cylinder body and die cover respectively, can prepare and have the negative model of mold cylinder body (silicon rubber mould of Φ 4mm * 6mm) is removed the unnecessary overlap of the negative model of silicon rubber mould cylinder aperture periphery and got final product.
5) method of recommending by manufactory, (each sample is with the once new cement preparation that is in harmonious proportion to be in harmonious proportion the tooth section cement of capacity by certain powder liquor ratio, the capsule cement is in harmonious proportion simultaneously with an above capsule and prepares sample) after, select for use cement plugger that uniform cement cement mixed in accent and place in the silicon rubber mould, pressurization, filling, and exceed mould slightly.For short tooth section cement hardening time, grasping person's filling simultaneously for two, but each filling 4-6 female cavity.
6) silicon rubber mould that will have a tooth section cement material places on the metal base plate, covers metallic plate and compresses, and then mould and metallic plate is clamped with screw clamp.Being in harmonious proportion end in the time of back 2 minutes, whole assembly is moved in the climatic chamber.
7) be in harmonious proportion to finish to remove metallic plate after 1 hour, adopt knife blade to cut silicon rubber mould, take out the sample of tooth section cement specimen material, polish at the two ends that speckle with on the sand paper of water sample, end face should be vertical with long axis.
8) once can prepare 4-6 sample by above-mentioned steps, will prepare what a sample should namely immerse in the distilled water, and places climatic chamber 23h scholar 0.5h, standby.
3. embodiment 3
The preparation method of the bar-shaped sample of a kind of tooth section's cement material, may further comprise the steps: get a tooth section preliminary impression polyvinyl siloxane, with stainless steel cylinder or plastic cylinder, punch with the preliminary impression polyvinyl siloxane in tooth section, then, directly the tooth section cement material that accent is mixed is inserted tooth section with in the hole on the preliminary impression polyvinyl siloxane, treat to cut tooth section preliminary impression polyvinyl siloxane after the tooth section cement material cured, make tooth section with peeling off fully on the tooth section cement material of preliminary impression polyvinyl siloxane after solidify, finally obtain cleaning surfaces, the bar-shaped test specimen of free of contamination tooth section's cement material.In the present embodiment, following method is adopted in the curing of described tooth section cement material: it is that 1 ℃ of 37 ℃ of scholar, relative humidity were not less than 30% climatic chamber 1 hour that the tooth section of having filled tooth section cement material in the hole is placed temperature with the preliminary impression polyvinyl siloxane, and tooth section cement material can be solidified.
4. embodiment 4
A kind of mould for the preparation method who implements the bar-shaped sample of described tooth section's cement material, comprise: tooth section is with preliminary impression polyvinyl siloxane matrix 1, is provided with hole 2 for direct filling tooth section cement material in tooth section with preliminary impression polyvinyl siloxane matrix 1.In the present embodiment, described mould also comprises housing 3, and described tooth section is located in the housing 3 with preliminary impression polyvinyl siloxane matrix 1.
Claims (4)
1. the preparation method of the bar-shaped sample of tooth section cement material, it is characterized in that, may further comprise the steps: get a tooth section preliminary impression polyvinyl siloxane, with stainless steel cylinder or plastic cylinder, punch with the preliminary impression polyvinyl siloxane in tooth section, then, directly the tooth section cement material that accent is mixed is inserted tooth section with in the hole on the preliminary impression polyvinyl siloxane, treat to cut tooth section preliminary impression polyvinyl siloxane after the tooth section cement material cured, make tooth section with peeling off fully on the tooth section cement material of preliminary impression polyvinyl siloxane after solidify, finally obtain cleaning surfaces, the bar-shaped test specimen of free of contamination tooth section's cement material.
2. the preparation method of the bar-shaped sample of tooth section's cement material according to claim 1, it is characterized in that, following method is adopted in the curing of described tooth section cement material: it is that 1 ℃ of 37 ℃ of scholar, relative humidity were not less than 30% climatic chamber 1 hour that the tooth section of having filled tooth section cement material in the hole is placed temperature with the preliminary impression polyvinyl siloxane, and tooth section cement material can be solidified.
3. mould of be used for implementing the preparation method of the bar-shaped sample of claim 1 described tooth section's cement material, it is characterized in that, comprise: tooth section is with preliminary impression polyvinyl siloxane matrix (1), is provided with hole (2) for direct filling tooth section cement material in tooth section with preliminary impression polyvinyl siloxane matrix (1).
4. mould according to claim 3 is characterized in that, described mould also comprises housing (3), and described tooth section is located in the housing (3) with preliminary impression polyvinyl siloxane matrix (1).
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| CN102958466A (en) * | 2010-06-25 | 2013-03-06 | 松下电器产业株式会社 | Molded body for dental cutting tool and method for producing same |
| CN102976618A (en) * | 2012-12-11 | 2013-03-20 | 安泰科技股份有限公司 | Glass powder of water-based glass ionomer cement and preparation method thereof |
| CN103083192A (en) * | 2013-02-06 | 2013-05-08 | 安泰科技股份有限公司 | Curable elastomer impression material |
| CN203331301U (en) * | 2013-06-27 | 2013-12-11 | 东南大学 | Die for preparing dental claviform cement sample |
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2013
- 2013-06-27 CN CN2013102652151A patent/CN103286898A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102958466A (en) * | 2010-06-25 | 2013-03-06 | 松下电器产业株式会社 | Molded body for dental cutting tool and method for producing same |
| CN102174141A (en) * | 2011-03-21 | 2011-09-07 | 北京化工大学 | Method for preparing glass ionomer cement liquid with low dissolubility and acidity |
| CN102248125A (en) * | 2011-06-25 | 2011-11-23 | 深圳技师学院 | Simplified process method of lost wax casting |
| CN102976618A (en) * | 2012-12-11 | 2013-03-20 | 安泰科技股份有限公司 | Glass powder of water-based glass ionomer cement and preparation method thereof |
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| CN203331301U (en) * | 2013-06-27 | 2013-12-11 | 东南大学 | Die for preparing dental claviform cement sample |
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Application publication date: 20130911 |