Instructions for use 14000601 (009127GB) (v2)
Contents
1. Vacuum time BioHPP 3 minutes pre set L Pressdruck Muffle size 3 2 3 bar Muffle size 9 4 5 bar Muffle size 9 XXL 5 5 6 bar The filled muffle is placed on the pressing table of the for 2 press device Then close the pressing chamber using both hands to raise the pressing table Then the entire pressing process is started The vacuum is built up automatically before the pressing N chamber is closed The status LED changes from blue to red and the pressing process starts once the maximum vacuum has been built up Press the pressing table firmly upward until the silicone seal fits tightly and completely and the status LED changes from blue to red At the end of the set vaccum time the pressing table is automatically lowered into the cooling position and cooling under press pressure starts Cooling under press pressure is completed in 35 minutes At the end of the entire pressing process an acoustic signal is heard and the press plunger is raised automatically into the standby position The pressed muffle can be removed from the device The device is ready for the next pressing process Interrupting the active program by pressing the Program Stop N button to save time must be avoided This button is used to stop the entire program sequence Premature interruption of the repressing time would have a negative influence on the physical properties of the pressed material The Program Stopp button should only2. 0 41 5 210 g replaceable friction elements then 110 as core Investment For normal investment coverage and the production of investment material duplicate models e g model casting technique 54 25 21 46 2109 210 g corresponds to a bag of investment material mould size 3 2 bags of investment material are used for mould sizes 9 and 9 XXL Double the volume of the investment material fluid accordingly OreqenT a 10 16 Preheating Preheating process of the investment material mould Speed heating process The setting time of the investment material is 20 min For the speed process the mould is then placed directly into a preheated pre heater oven that is set to the end temperature The max preheating temperature of 850 C may not be exceeded The preheating temperature of 630 C may not be exceeded as otherwise the transition process for controllingthe expansion cannot be fully completed The disposable press plunger must also run through the entire preheating process parallel to the mould After 60 min at the end temperature the oven is cooled to 400 C keeping the oven door closed for another 60 min The mould is now ready for the melting process Caution The conventional heating process must be performed for large volume plastic models In order to save time it is recommended that the preheating is performed overnight and then cooled to the 400 C melt temperature Conventional heating pro
3. be used if the muffle is not in a straight position inside the device or if a vaccum is not built up owing to contamination 12 16 Tel 49 0 73 09 8 72 4 40 Fax 49 0 73 09 8 72 4 44 www bredent com e mail info bredent com Removing the investment material Soaking Soak the muffle in a water bath for approx 10 minutes to facilitate removal of the material and to minimize the formation of dust Devesting process The mould can be roughly removed with a hammer The remaining investment material must be removed with a pneumatic devesting chisel No distortion takes place such as for dental casting alloys due to the elastic material properties of BioHPP The remainder of the investment material is blasted with aluminium oxide with 110 um and 2 5 bar The distance between the object and the nozzle should be at least 3 cm during sandblasting If the distance is too small the resin may be heated excessively and damaged Fitting and finishing For wide span objects it may be beneficial if the pressing channels are not removed during the fitting process These are extremely well suited for a firm hold After fitting the press channels can be most easily removed with cross toothed mills Generally the object is fitted to the stumps without using occlusal spray or similar aids as these chemical substances are difficult to remove from the objects A perfect high gloss polish ensures an optimal surface quality Thi
4. the front and posterior area in order to increase stability It is recommended that retaining elements coarse retention splinters or large retention beads are also attached to the surface to be veneered Fig 5 OFECeNnt s 6 16 Thicknesses of connectors The connector between the bridge units and the bridge unit toward the crown must have an area of 11 to 12 mm2 in the anterior region and an area of 14 mm in the posterior region Fig 6 Distribution of masticatory forces modelling The vertical diameter in the central basal area of the bridge unit has the largest size This way It is ensured that occlusal forces are distributed in the best possible manner For the occlusal to the basal direction the largest diameter Should be in the extension of the central fi ssure which is important for the stability of the substructure Modelling the basal support on the gingiva O We recommend not veneering the basal application of the bridge pontics on the gingiva of the alveolar ridge with composite veneers This area must be designed from BioHPP in order to ensure the greatest possible strength in the vertical extension In the transitions from the composite veneer to the BioHPP framework material an undercutting retentive end strip must be modelled in the form of an hour glass Fig 9 The BioHPP has extremely good polishing properties while direct contact to the gingiva is possible Connector cross sectio
5. Biola in the for 2 press system Please read these processing instructions and the associated user manual carefully prior to using the product Processing instructions English oredent Content UFC UN CSTGNO MN je cteer teens crater devices E E E E E E eeaeeeccrtaeae ee 3 aeaee TOIA isis E E E E T rererrererr er meena 3 SSCA EV UNNI CO TIN UU TAs oe rnc nc a E a e Ge ice 3 Device zeng the pressing PrESSUE ta ee e a ere vate seeetyatee een teers 4 Locauonm ofthe Tor 2 CSS Ea ea a a evant 4 Preparation of the substructure Preparation ort nendi e e a ert eee 5 Waxing up substructure fabrication eee a tc testy ne reecrsscrre ses 5 ee E OUS erste cerece cere eect eee reece etecss ei vewetieteectes eereesecreee 6 Distribution Ol masticatory forces ee ee ee eee 6 Modelling the basal support ON the GINGIVA ssssssecsesesesseseseseseeeseseseeseseees 6 Spruing and investing the model Separating the spruemo OAS Crecente a a tens 7 E E E E T T 7 Checking the angle sas nra E SecuiSryaeer ence 8 Controlling the expansion of the investment material Dosing recommendation for the for 2 press investment material fluid 9 Preheating Preheating process for the investment material mould csceeeeeen 10 Fill quantities Conversion table wax granular Material ccc scsccccsssscessssssessesseesssssessssessesssee 10 Melting the material Filling the thermoplastic resin into the MUPPIC cscs 11 Filling the muffl e with th
6. cess After 20 min the mould can be directly heated to an end temperature of 630 to 850 C with a max heating speed of 8 C min In order to control the expansion of the investment material there are no waiting periods at lower temperature levels The investment material is designed for a progressive heating phase There is a 60 min waiting period on reaching the end temperature The mould is then slowly cooled to 400 C keeping the oven door closed Caution N When investing titanium patterns such as the individual SKY elegance abutment a maximum end temperature of 630 C may not be exceeded as an Alpha Case layer is otherwise formed Control the temperature of your preheater oven amp see page 4 Fig 2 and Fig 3 Fill quantities Conversion table Wax Bio HPP granular material Wax weight Weight incl sprues BioHPP lt 30 7 29 Muffle size 9 Ao 87g Tel 49 0 73 09 8 72 4 40 Fax 49 0 73 09 8 72 4 44 www bredent com Maximum fill quantities Muffle size 3 5 g BioHPP Muffle size 9 8 g BioHPP Muffle size 9 XXL 15 g BioHPP Pellet e mail info bredent com Melting the material Filling the thermoplastic resin into the muffle at 400 C Filling the granular material into the melt channel Then the muffle is placed back into the preheating furnace for 20 minutes Bio HPP at a temperature of 400 C Melting time 20 minutes Bio HPP Molten or used material must not b
7. e disposable PIUNGEL sceseeseeseseseeeeesen 11 The pressing process PRE SSU OPN HOR 2 TONGS E E E A A E E te 12 Removing the investment material SS COPA IIIT A E cee cass eos S cere AN A A eee rayeeevaiaecnenz seca 13 Deve ting process eer cs e a a serene rae e Scenes een 3 Fitting and finishing eD r E rer ere ener ner eer era eres 13 STED LAE E E E A E etry E ENN 14 STEDE A E A E E E O S E E erent 14 Dreo eaesee reer acctees ese ceg tar creeetenraeeietevesrtetracas camara au caasdivecrt trate reneeet eae ee 14 SUED Saari tame eevee smal eee nner ee emer er eeneans 14 MEME CM IMG WC composites cece rere eres eee eee 15 G5 SFT 9 pee eer E eee 15 216 Tey 49 O 73 09 8 72 4 40 Fax 49 0 73 09 8 72 4 44 www bredent com e mail info bredent com Introduction The vacuum press system for 2 press was developed for constructing the framework structure for fixed and removable dental prostheses These processing instructions include all relevant information required for the fabrication of the respective substructures When developing the 2 for press system the focus was on high mechanical strength of the pressed product and high process reliability during the pressing process The desired mechanical and physical properties are only achieved if the mould is cooled down under pressure after fi Iling in the thermoplastic resin The for 2 press device ensures this procedure thanks to the fully automatic process se
8. e used The N material would become brittle during an additional N melting process and major physical properties may be affected Thermoplastic material molten properly The molten thermoplastic material Fig 2 exhibits a creamy N and uniform appearance NO brown discoloration may be visible The material is ready for the pressing process Overheated thermoplastic material The thermoplastic material was melted too long or at an excessive temperature A brown skin has formed on the surface Fig 3 The material can not be used any longer Filling the muffle with the disposable plunger When filling the muffle with the disposable plunger for 2 press filler the surface with the marking must be facing upward Fig 4 The round edge of the plunger is inserted into the muffle to avoid tilting of the plunger during the pressing process Fig 5 The conical press plungers for the XXL mould size are fixed in the mould with the large surface facing downwards The disposable plunger should be pressed down slightly using the muffle tongs Then the muffle with the molten BIO HPP is placed immediately into the pressing device Make sure to avoid long distances between preheating furnace and pressing device oredent 11 16 The pressing process Pressing with for 2 press 1 pressure or vacuum time should be checked Pun Prior to each pressing process the parameters that were set such as press
9. ionally strengthen the mould by investing metal wire The following points must be observed in order to achieve perfect pressing results e The object must be placed at least 5 to 10 mm away from the inside of the silicone ring e The object must be placed outside the heat centre e The object must be placed at least 10 mm away from the top edge of the mould ring Note In order to avoid the risk of mould separations in a level it is recommended that these are placed at different heights in the case of several individual objects Note N No sharp edged transitions to the objects The use of retention beads or retention crystals is recommended Oregent m To prevent air pockets inside the crowns it is recommended that a brush or a special transfuser REF 39050001 is used during the investment process This ensures that the crown interior is free of bubbles Fig 6 The entire mould can then be filled with investment material Fig 7 After 20 min setting time the hot mould is removed from the plastic base mould using a slight turning motion Fig 8 Please always remove the mould keeping the opening facing downwards This prevents the risk of investment material parts entering the mould Note No sharp edged transitions to the objects The use of retention beads or retention crystals is recommended Checking the angle In order to enable trouble free pressing the muffle must always be positioned s
10. ngth according to DIN EN ISO 10477 Jena Uni 40 Material 40 10 38 55 38 30 38 30 C dem SHAE oO F 30 26 53 Mean values after 25 000 LW So 24 10 No 20 A 10 Source K Eichner H F Kappert Dental materials and how 0 these are processed Framework breCAM BioHPP for 2 press BioHPP for 2 press BioHPP 326 372 1996 material without retentions Retention beads Retention splitters The following order must be followed when conditioning the BioHPP surface 1 Blast with 2 5 bar and 110 um Al 0 2 Do not steam off 3 Thinly apply the visio link bonding agent according to the UM Fig 2 4 Apply the opaquer according to the UM 5 Apply the composite veneer according to the UM potentially use the visio lign system veneers In order to prevent undesired stresses or warpage in the frame it is advisable to separate the individual veneers up to the opaquer and only combine them after polymerisation e g with crea lign When using novo lign veneers it is also important to separate these and only add the crea lign after final polymerisation Cleaning A steam blaster may only be used briefly and with a large clearance between the nozzle and the BioHPP surface for final cleaning The best cleaning option is ultrasound baths with a bath temperature of max 40 C Highly corrosive solutions may not be used UM visio lign user manual CIEIEM sme Inserting the substructures All tests were carried
11. ns Posterior region approx 12 mm Anterior region approx 14 mm Tel 49 0 73 09 8 72 4 40 Fax 49 0 73 09 8 72 4 44 www bredent com e mail info bredent com Spruing and investing the model Separating the sprueing base To simplify the subsequent removal of the mould plate from the investment material we recommend slightly greasing the mould plate with Vaseline Investing The investments can be performed in two different ways Either the plastic or wax modelling is taken from the master model and completely invested Fig 2 or the modelling is performed on an investment material duplicate model as per the model casting technique and subsequently invested Fig 3 To reduce the risk of the mould bursting as much of the investment material as possible should remain on the object to be pressed The mould wall may be damaged if the cavity which is formed by the size of the model is too large compared to the investment material which encloses the press object Model pressing For some indications e g telescope secondary designs the modelling of the secondary part is performed on a duplicate investment material model In this case it is important that the investment material model is significantly reduced in order to provide as much space as possible for the investment coverage This significantly reduces the risk of the mould bursting In extreme cases with extremely large models it is possible to addit
12. out with Variolink 2 adhesive material from lvoclar Variolink is a dual curing adhesive cementation system for reliable cementation of thermoplastic resins Trouble Shooting Problem Cause Remedy Cavities in the object Press pressure too low Restoration needs to be refabricated Press pressure drops owing to additional systems Adhere to the instructions connected Incorrect sprueing Objects not outside the center of heat Failed bridge or crown Press pressure too low Restoration needs to be refabricated sections Melting temperature too low Adhere to the instructions Melting time too short Not enough material Press plunger tilted or inserted with the wrong Side Brown surface areas Excessive pressure of blasting unit insufficient Grinding of the surface or refabrication distance to the nozzle remake Adhere to the instructions Muffle burst during the pres Muffle was not cooled down slowly to the required Restoration needs to be refabricated sing process press temperature Preheating temperature too low Muffle needs to be lukewarm when it is or preheating time too short removed from the device Adhere to the Mould plates were removed from the investment instructions material mould with too much force Use more Vaseline to grease the mould plate Problems of fit Muffle was removed too early from the pressing Restoration needs to be refabricated device Muffle needs to be lukewarm when it is Incorrect mixing ra
13. quence Please use only the components of the for 2 press system Important information Use of symbols In addition to the special warning information the processing instructions also include symbols O to facilitate processing by offering special processing tips Safety information Intended use The for 2 press system is intended to be used for the indications described in the instructions for use Any other use is considered to be use other than intended The use of thermal protective gloves and safety goggles during the use of this system is strongly recommended Qualification of the processor Users who work with the system must e have adequate skills and training for the respective activities e know the safety requirements concerning the use It must be ensured that these processing instructions are always at the disposal of the user OFECeNnt as The device Setting the Press pressure Required inlet air pressure 4 5 to 6 bar If the inlet air pressure exceeds 6 bar a pneumatic maintenance unit should be connected to the pressure inlet This pneumatic maintenance unit is an optional accessory A pneumatic maintenance unit removes moisture from the compressed air thereby protecting the pneumatic sensors and control units of the for2 press vacuum pressing device Press pressure at the manometer for muffle size 3 max 2 3 bar for muffle size 9 max 4 5 bar for muffle size 9 XXL max 6 ba
14. r It is important to first check whether other systems may change the pressure adjusted The dynamic inlet air pressure in the line must not drop below 4 5 bar and not exceed 6 bar Your preheating furnace is used for preheating the investment muffle and for melting Bio HPP It is recommended to measure the accuracy of your preheating furnace at 400 C before using the system gt gt Please also pay attention to the user manual for monitoring the temperature of your preheating oven It details the process incl the measurement of the core mould temperature This measurement requires a special digital thermometer that your responsible bredent field service consultant will provide or they will carry out the measurement at your laboratory Please contact your responsible bredent field service consultant for the oven measurement Location of the for 2 press device To avoid any decrease in temperature when removing the muffle from the preheating furnace and inserting it into the pressing device we recommend to place the pressing device very close to the preheating furnace Time for placement in the pressing device max 10 seconds comparable to casting of alloys o 6 Tey 49 0 73 09 8 72 4 40 Fax 49 0 73 09 8 72 4 44 www bredent com e mail info bredent com Preparation of the substructure Preparation of the die Chamfer or step preparation are required to ensure perfect support of the framewo
15. rk structure Fig 1 A tangential preparation is not recommended Fig 2 Waxing up substructure fabrication All the customary modelling plastics and waxes in dental technology that burn up completely and without leaving residue are suitable We recommend plastics that do not develop an excessive volume during the burning process thereby stressing the investment material A wax layer should also be applied when these types of plastics are used A customary wax insulation has proven to be suitable when using modelling wax If the model consists of modelling plastic Vaseline must be used for the insulation When producing the framework structure for subsequent veneering with composite veneers the framework must be modelled anatomically scaled down The minimum framework thickness must be 0 5 mm Circular modelling provides additional strength at the crown margin This area can be reduced to 0 3 mm and sharply tapered after the pressing process To optimise the accuracy of the fit in the crown margin area it is recommended that the preparation margin is designed more thickly Individual abutments such as the special SKY elegance can be produced in the moulding process Fig 4 When modelling back protection plates for veneering the transition must be positioned outside the functional surface for veneering Sharp edged transitions must be avoided in the modelling Garland modelling has proven successful for veneer bridges in
16. s requires the following five steps using select rotating tools Oregen em Carbide mill coarse serration light pressing pressure 6 8 000 rpm REF Designation H194GH40 Carbide mill conical round coarse serration with relief Diagen Turbogrinder green light pressing pressure 6 8 000 rpm REF Designation Ceragum rubber polishing cylinder light press pressure 6 8 000 rpm Caution Very light press pressure REF Designation PLKG2250 Ceragum coarse lens 22 x 4mm Goat hair brush with pumice stone powder at the dental technician s workplace approx 5000 rpm or on the polishing lathe with pumice stone level Il REF Designation Goat hair brush with Abraso Starglanz and then cotton buffing wheel without polish 6 8000 rpm on the handpiece Image 5a or wool buffing wheel without polish on the polishing lathe level II Image 5b REF Designation _ 14116 Tel 49 0 73 09 8 72 4 40 Fax 49 0 73 09 8 72 4 44 www bredent com e mail info bredent com Veneering with composites Only composite veneers that harden without additional thermal treatment may be used The bredent composite veneer with all the visio lign system components has proven to be most suitable Numerous scientific studies verify this assertion Mechanical retentions in the form of beads or splinters have proven to improve the bond strength between BioHPP and the composite veneer Fig 1 1 Bond stre
17. tio of the investment material removed from the device Restoration deformed during removal Adhere to the instructions Brown streaks on the surface Material overheated Restoration needs to be refabricated after devesting Melting time too long Adhere to the instructions Use BioHPP as granulate for mould size 9 with 30 Use BioHPP in pellet form for large work mm press plunger diameter over 8 g Unsuccessful pressing No or only insufficient press pressure Restoration needs to be refabricated Muffle at an oblique angle in the device Observe press pressure Not enough material Check manometer for pressure drop when Material overheated other devices which consume com pressed air are being operated Fractured bridge Cavities in the connector see item 1 Restoration needs to be refabricated Connector diameter not adhered to Pt rec val GmbH amp Co KG Weissenhorner Str 2 89250 Senden Germany Tel 49 0 73 09 8 72 4 40 Fax 49 0 73 09 8 72 4 44 www bredent com e mail info bredent com Mistake and subject to change reserved 009127GB 20130226 a
18. traight and at a right angle If required the muffle can be carefully trimmed at the side opposite the filling opening to ensure a straight position of the muffle during the pressing process The angle should be 90 Fig 9 Mixing the investment material Investment material and liquid are mixed manually for approx 30 seconds using a spatula Vacuum mixing unit If possible we recommend to use a prevacuum approx 10 sec Speed approx 390 rom Mixing time 90 seconds under vacuum _ 86 Tey 49 0 73 09 8 72 4 40 Fax 49 0 73 09 8 72 4 44 www bredent com e mail info bredent com Controlling the expansion of the investment material Dosing recommendation for the brevest for 2 press investment material fluid Scope of application Concentration of the Powder investment material fluid Bresol liquid distilled water Total quantity in in ml in ml in ml ing Crowns and bridges 5A 0f 25 7 46 210g normal stump length Crowns and bridges E6 0 26 20 46 210 g long stump length Telescope work secondary part for 90 41 4 4 6 46 210 g short stump lengths Telescope work secondary part for 95 43 7 2 3 46 210 g normal stump lengths Bridgework secondary part for very 95 43 7 2 3 46 210 g low bars Bridgework secondary part for normal bar 100 46 0 46 PA 8 0 heights If no friction over the secondary part made of BioHPP is desired rather only over inserted 100 41 5
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