Polished, polishing Technology

Denture polished, polished by mechanical means and processing methods such as electrolysis that the metal denture, resin and porcelain smooth surface to a high degree of technology.
First, impact polished, polishing the relevant factors
1, the speed machines and objects polished work pressure, speed and polishing machines was directly proportional to the efficiency, and the pressure was inverse. High-speed machines, polished faster, smaller force. Under normal circumstances, Cumo when the pressure is greater than the fine grinding, fine grinding pressure of work more than polishing.
2, abrasive (material) were grinding the hardness of the hardness of objects, requested by Abrasives (expected) to the hardness high. Use, abrasive grinding to a high hardness of objects, the loss of abrasive than objects of wear. The objects were grinding hardness is low, abrasive (expected) without excessive hardness, to reduce the cost of polished.
3, abrasive (material) in accordance with the size polished, polishing the requirements of different size of the abrasive (material), after the first small fine after the first rough.
4, the switch was abrasive grinding the shape of the object is complex and changeable, we must choose different shapes of the abrasive (expected), neither operation of the objects shape, but also improve the efficiency of polished.
Second, denture polished, polishing the operational procedures
Denture must be followed by the rough polished to fine-after-the first principles. The basic procedure is: Cumo and dressing appearance - the surface - the formation fine grinding and polishing (Electropolishing, mechanical polishing).
1, metal polishing and polishing their characteristics is difficult, especially the high-alloy polished. So the polished metal need a good polishing equipment and abrasive, to reduce the intensity of work and improve the efficiency of polished.
① with casting, and sandblasting: cut-sand-casting, in addition, the sandblasting of the 0.2 ~ 0.8 mp under pressure, sand blasting of the surface to be polished to remove embedded materials and casting surface oxide film, Polished to achieve the effect.
② Cumo: the coarse particle size (80 to 100 head), Jin Gangsha grinding head removed, joints and other parts of casting, casting and adjust the thickness and shape, further removal of the surface oxide layer.
③ fine grinding: the relatively small size (120 to 200 head), repeatedly formation of the metal surface so that it gradually smooth.
④ polishing: in size and fine-grained (200 to 300 mesh) rubber round, followed by polishing to remove all traces of wear, the metal surface until a uniform luster, and then sheets polishing paste polishing. One denture stent should Electropolishing, then the above step for polishing.
⑤ clean casting: ultrasonic cleaner in the wash tank by adding washing liquid, using ultrasonic vibration to dirt and restoration of separation, which aims to clean castings. Or using high pressure water jet washing machine or vapor form particles, the jet into the ground surface, after the removal of all fixtures mechanical polishing.
2, resin polishing, polishing its features is the large amount of polished, complex process. Polishing equipment for speed in the polished motor. Tools for Cumo, three fine grinding and polishing.
⑴ Cumo: The big wheel Moqu resin superfluous part of denture attention to the shape and thickness dressing. Finally, the entire fine sandpaper to lightly polished surface polished again, so that the surface resin and more delicate formation.
⑵ fine grinding: cloth round polished substrate surface and edges, polished teeth and neck, polished surface as possible, to protect the sudden appearance of the crown. Fine grinding should always maintain moist, to prevent resin from repeated friction and heat production of coke.
⑶ polishing: white brush and polishing paste or zinc oxide polishing paste resin, polishing force when not too large.
⑷ cleansing: ultrasonic cleaning or high pressure water jet washing machine washing to remove the surface fixtures.
3, the polished pottery, polished porcelain restoration of the surface gloss is ultimately adopted after the glazing from the high-temperature sintering. Under normal circumstances, the good and bad gloss on the surface of the porcelain before glazing polished level. Porcelain polished require the use of speed smaller medium-speed mobile phones, for the abrasive, fine-grained alumina and silicon carbide grinding head rubber round.

Base resin molding technology

Denture polished, polished by mechanical means and processing methods such as electrolysis that the metal denture, resin and porcelain smooth surface to a high degree of technology.
First, impact polished, polishing the relevant factors
1, the speed machines and objects polished work pressure, speed and polishing machines was directly proportional to the efficiency, and the pressure was inverse. High-speed machines, polished faster, smaller force. Under normal circumstances, Cumo when the pressure is greater than the fine grinding, fine grinding pressure of work more than polishing.
2, abrasive (material) were grinding the hardness of the hardness of objects, requested by Abrasives (expected) to the hardness high. Use, abrasive grinding to a high hardness of objects, the loss of abrasive than objects of wear. The objects were grinding hardness is low, abrasive (expected) without excessive hardness, to reduce the cost of polished.
3, abrasive (material) in accordance with the size polished, polishing the requirements of different size of the abrasive (material), after the first small fine after the first rough.
4, the switch was abrasive grinding the shape of the object is complex and changeable, we must choose different shapes of the abrasive (expected), neither operation of the objects shape, but also improve the efficiency of polished.
Second, denture polished, polishing the operational procedures
Denture must be followed by the rough polished to fine-after-the first principles. The basic procedure is: Cumo and dressing appearance - the surface - the formation fine grinding and polishing (Electropolishing, mechanical polishing).
1, metal polishing and polishing their characteristics is difficult, especially the high-alloy polished. So the polished metal needs with better equipment and abrasive polishing, to reduce the intensity of work and improve the efficiency of polished.
① with casting, and sandblasting: cut-sand-casting, in addition, the sandblasting of the 0.2 ~ 0.8 mp under pressure, sand blasting of the surface to be polished to remove embedded materials and casting surface oxide film, Polished to achieve the effect.
② Cumo: the coarse particle size (80 to 100 head), Jin Gangsha grinding head removed, joints and other parts of casting, casting and adjust the thickness and shape, further removal of the surface oxide layer.
③ fine grinding: the relatively small size (120 to 200 head), repeatedly formation of the metal surface so that it gradually smooth.
④ polishing: in size and fine-grained (200 to 300 mesh) rubber round, followed by polishing to remove all traces of wear, the metal surface until a uniform luster, and then sheets polishing paste polishing. One denture stent should Electropolishing, then the above step for polishing.
⑤ clean casting: ultrasonic cleaner in the wash tank by adding washing liquid, using ultrasonic vibration to dirt and restoration of separation, which aims to clean castings. Or using high pressure water jet washing machine or vapor form particles, the jet into the ground surface, after the removal of all fixtures mechanical polishing.
2, resin polishing, polishing its features is the large amount of polished, complex process. Polishing equipment for speed in the polished motor. Tools for Cumo, three fine grinding and polishing.
⑴ Cumo: The big wheel Moqu resin excess of attention to appearance and the thickness of the denture was repaired. Finally, the entire fine sandpaper to lightly polished surface polished again, so that the surface resin and more delicate formation.
⑵ fine grinding: cloth round polished substrate surface and edges, polished teeth and neck, polished surface as possible, to protect the sudden appearance of the crown. Fine grinding should always maintain moist, to prevent resin from repeated friction and heat production of coke.
⑶ polishing: white brush and polishing paste or zinc oxide polishing paste resin, polishing force when not too large.
⑷ cleansing: ultrasonic cleaning or high pressure water jet washing machine washing to remove the surface fixtures.
3, the polished pottery, polished porcelain restoration of the surface gloss is ultimately adopted after the glazing from the high-temperature sintering. Under normal circumstances, the good and bad gloss on the surface of the porcelain before glazing polished level. Porcelain polished require the use of speed smaller medium-speed mobile phones, for the abrasive, fine-grained alumina and silicon carbide grinding head rubber round.

Grinding Technology

First, the significance of grinding
Grinding is a very sophisticated technology, aimed at placing support arm of the slot, a dental-care Au and telescopic in the crown for the activities of the denture in place and create the conditions for retention.
The scope of application of grinding
1, before and after the dental needs of the sophisticated teeth on the preparation of a semi-Au-care, support and attachment arm of the slot.
2, to provide activities denture retention of the link -
3, when the FPD, no common place, through the screw retention, it must be prepared by grinding placed screws or nails of the platform.
4, grinding telescopic, to create a common place activities denture Road.
5, grinding root structure, for overdenture create the conditions in place.
Third, the grinding process
    Grinding is not referring only to the parallel-grinding machine on the platform of cutting and processing denture process, but the grinding process, including the three steps: attachment will be transferred at precisely placed in the appropriate place on the denture; parallel with ground - In the processing machinery on the platform of cutting dentures; Finally, the metal surface processing.
1. Identify common system in place, will be a working model correctly placed in the ground on the platform, and observed under a common place of denture Road.
2. Fixed-placed common place, when established, the working model in the central part of a fixed-placed. Because of the needle will be used for grinding transferred to check-in and used plaster fixed.
3. Crown wax-type production model will work on the platform removed from the ground, on the teeth of planes, and its production on the crown of wax. Upon completion of wax, then working model placed on the platform grinding grinding block, the Preparatory polishing wax type.
4. Polishing wax -
(1) used a square of wax knife engraved with the low speed and light pressure on a wax-grinding. Grinding the direction for the low resistance direction (from left to right), the method is conducive to maintaining the smooth surface of polishing and cleaning.
(2) the circular carved wax knife, knife-burning heating devices connected, carved in wax under certain temperature. Determined to a large extent depends on the temperature of the room temperature and the melting temperature wax. The temperature is set to make just wax in a melt-down. After polishing wax-type can be embedded, casting.
5, grinding block the production model will work together with the casting placed in a grinding platform, Jin Shugan insert grinding instrument-card, and a high degree of adjustment to cast a crown of the tooth surface with wax casting crown will Jinzhu Gan and bonding , To remove the grinding-par card. Remove the working model will be copied and put into type casting crown, embedded in the lower part of gypsum, which made a grinding block. 10 dinner this method is conducive to the protection of the model.
6, installation of grinding tool grinding, grinding tool to open, open-grinding, grinding completed.
7, polishing the grinding tool on the winding linen, polishing and grinding surface.
8, lingual support in the production of wax-lingual support Au lingual support in the completion of the wax-type production.
9, the production of conventional dentures completed the production of dentures.
Fourth, the idea of grinding
(A) model with a fixed installation tool
1, the beginning of parallel grinding operation, should be working model of security, firmly fixed in the ground for the operation platform.
2, will be fixed in the cutting tool for the fixture on the grinding, open-grinding, cutting hair in the process of using a rotating cutting knife Qian Fenbiao measurement of Swing, Swing will have to re-install when.
(B) ground for the speed control
1, wax-cutting, grinding for the speed control in 3000 rpm.
2, grinding metal pieces of speed should be controlled in 5000 ~ 15000 rpm, also under the ground for the use of appropriate adjustments.
(C) commonly used method of grinding
1. Grinding will be three sub-surface, surface grinding threshold should be below the neck grinding attachment, the organization of more than 0.5 mm.
2. Abrasive surface completely parallel, a shoulder and neck, shoulder and the vertical plane of the circle blunt angle, the margin of neck
6 ° ring shoulder.
(D) the process of grinding
1. With a special wax-cutting tool from the thick, started operation, cutting the outer surface of the wax.
2. Alloy Casting should try to choose a low content of palladium alloys.
3. In addition to grinding attachment, but also grinding lingual support the retention arm and other devices.
4. Preparation body will be inserted in the oil sludge, production of lead-generation, and turned on the model of the system at work, to force the mechanical process of cutting-break. If the plaster model work hard enough, the system may also lead generation type.
5. Grinding to be in one direction, moving back and forth grinding said casting will be formed on the surface in the ditch or vertical shafts.
6. Grinding to maintain the integrity of the process, in a short period of time should not be cutting grinding many materials, should not be mixed with grinding shelved after half a period of time after the grinding.
7. Grinding process should continue in the processing and coating the surface grinding oil, to processing pieces of flashing knives and grinding.
8. Afterburner grinding to be in casting, so to hand castings, so as to avoid grinding pieces from.