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YTZP Zirconia Ball Bond-In Attachment System
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Related Products

  CompoForm UV

  Seracoll UV

  Pi-Ku-Plast HP 36 Resin

  Ropak Liquid

  Diagens Discs

  Silano Pen

  Bredent Casting Techniques


XPdent Corporation, the exclusive distributor of Bredent products in the U.S. is proud to announce the new precision engineered, YTZP Zirconia Ball Attachment that is used in conjunction with the VKS-SG’s retentive matrices. XPdent’s zirconia ball provides the same functional and aesthetic benefits that a cast alloy attachment does without the susceptibility of direct wear or breakage due to the high fracture toughness (1,200mpa) and low wear features of YTZP zirconia. Dental technicians can incorporate the YTZP zirconia ball patrix into traditional crowns, bridges, implant bars, custom implant abutments and of course, all ceramic restorations for totally specialized combinations of prosthetic and restorative work. Available in a 2.2mm diameter ball, the YTZP Zirconia Ball takes attachment cases to the next level by offering patients optimal aesthetics, biocompatibility and a wear resistance that only yttrium stabilized zirconia can provide.


YTZP Zirconia Patrix
1 Piece   Download MSDS Sheet
2.2 mm    
#X09ZP22 $59.95
Dimensions Chart    

VKS-SG 2.2 mm 4 pc Set w/ YTZP Zirconia Patrix

2.2 mm    
4 Pcs. Set #X09ZPSET $84.50

*VKS-SG 2.2 mm 4 pc Set w/ Zirconia Patrix
Includes the following items

  1 YTZP Zirconia Patrix
1 matrix VKS-SG 2.2mm Red
1 matrix VKS-SG 2.2mm Yellow
1 matrix VKS-SG 2.2mm Green
VKS Paralleling Mandrel
1 Piece
2.2 mm    
#36001130 $56.45

SV Paralleling Mandrel

This universal mandrel can be used for many paralleling applications including bars.
2.2 mm    
1 pieces #36001151 $104.10
Castable SG Matrix Housing
2.2 mm
4 pieces #SA5420 $37.00
8 pieces #S05420 $58.00

DTK Adhesive Assortment Kit
A dual hardening composite adhesive for the fixation of dental attachments.
1 Base paste B, 5 g
1 Catalyst paste K, 5 g
1 Mixing block
1 Spatula
10 Application cannulas (black)
#54001185   $148.15  
Download DTK Instructions

Pi-Ku-Plast HP36 Assortment Kit

  Blue Kit #54000219 $235.00

  Yellow Kit #54000217 $235.00
  Orange Kit #54000218 $235.00
  Red Kit #54000220 $235.00
  Transparent Kit #54000216 $235.00

The Pi-Ku-Plast Assortment Kit Includes the following items

          100 ml Monomer
          100 ml Cleaner
          85 g Polymer
          1 Brush size A
1 Brush size B
1 Brush holder
3 Vessels

Diamond instruments for metal, porcelain, zirconia and In-ceram
The diamond instrument with exceptional grinding performance thanks to the special Diagen diamond bonding. High grinding performance and abrasion on metal and porcelain surfaces - only minimal pressure has to be exerted. The prolonged service life in comparison to conventional bonding systems provides for a wide range of applications and high efficiency.
Maximum grinding power and abrasive capacity on metal and ceramic surfaces at reduced pressure. Increased surface life compared to conventional binding material allows for a wide range of applications and thus high efficiency.


  Diagen Turbo Grinder 5 Pieces Kit

Cone, 3.5 x 11 mm
Disc, 15 x 3.5 mm
Disc, 22 x 4.5 mm
Cylinder, 4.8 x 14 mm
Cylinder, 6.5 x 13 mm


Ropak light-curing Opaque Liquid
10 ml Ropak uv-f liquid
#52000164 $36.15
Ropak light-curing Opaque Powder
10 g Ropak uv-p powder
#52000165 $63.75


YTZP Zirconia Ball Attachment


Download/Print Instructions

YTZP Zirconia Ball Attachment is used in conjunction with the VKS-SG’s retentive matrices. XPdent’s zirconia ball provides the same functional and aesthetic benefits that a cast alloy attachment does without the susceptibility of direct wear or breakage due to the high fracture toughness (1,200mpa) and low wear features of YTZP zirconia.

Step 1: Using the 2.2mm VKS Paralleling Mandrel (# 36001130) and a surveyor; place the zirconia patrix right up against the die/prep wall; and keep the ball approximately 0.5mm above the crest of the ridge.
Step 2: Coat the die with a small amount of Vaseline as a separator and then apply Pikuplast Modeling Resin (Transparent colored Pikuplast was used in this picture but any color may be used) onto and around the base of the zirconia patrix and the die as well.
Step 3: Finish the wax-up and then carefully twist and push the zirconia ball patrix through the crown wall so that it comes out the bottom of the coping. Use a small hemostat or tweezers to aide in removing the zirconia ball from the coping. The coping now has a tapered receptacle for bonding-in the zirconia patrix later on. IMPORTANT: A lingual arm shoulder rest with a mesio-lingual interproximal vertical groove is required for stability and the distribution of occlusal forces. Sprue and cast without the zirconia patrix.

Step 4: After casting, fit the metal coping and inspect the tapered receptacle and carefully remove any casting discrepancies if any. DO NOT over adjust the tapered receptacle for bonding-in the zirconia patrix because it may create an inaccurate fit and a non-parallel path of insertion.

Tip: Test the zirconia patrix and make sure that it seats properly inside the tapered receptacle by pushing it up through the coping and out the tapered end.

Step 5: Remove zirconia ball patrices, finish the metal-work and bake porcelain on the copings. (Without the zirconia ball attachments). Make sure to keep the tapered receptacle clean and free of ceramic materials, then finish and glaze the crowns.

Step 6: Once the crowns are finished, you must be certain that they will not require additional oven firings. Any correctional bakes need to be done PRIOR to bonding-in the zirconia patrix. Oven firing will not possible after bonding-in of zirconia ball patrix without damaging the component.

Tip: Test the zirconia patrix and make sure that it seats properly inside the tapered receptacle by pushing it up through the coping and out the tapered end.

Step 7: Snap a VKS-OC or SG green or yellow matrix over the zirconia ball to protect it and then sandblast its tapered base using 50 micron aluminum oxide. Tip: Use a 2.2mm Castable Matrix Housing to help you secure the zirconia patrix while sandblasting.

Strong Recommendation: Use the Silano-Pen system (#32000470) to chemically treat the tapered base of the zirconia ball patrix prior to bonding in order to enhance the bond strength. Follow Silano Pen instructions for correct silanization procedure.

Step 8: Install the zirconia patrix and make sure that it seats properly inside the tapered receptacle by pushing it up through the coping and out the tapered end, then leave it there.

Step 9: Tip: Perform this step off of the die model. Slightly push the zirconia patrix from the ball, just enough to expose its tapered base through the inside of the coping. Do not remove the patrix completely. Using DTK adhesive (#54001185) coat the tapered base of the zirconia patrix then re-insert the patrix by pushing it through the coping and out the tapered end. Do not place crowns with zirconia ball back onto the model before DTK sets. Allow the adhesive to set according to Bredent’s instructions. Afterwards, carefully remove any excess bonding material and check the crown fit on the die. Check for any excess adhesive on the ball and pick it off using a scalpel and proceed to fabricate the RPD.


Removable Partial Denture Frame with Custom Attachment Metal Housings and Lingual Arms Fabrication Sequence


Download/Print Instructions

Over the years, most of the problems with any attachment are due to poorly designed or fitting R.P.D’s; specifically, frames without proper reciprocating arms. For this reason, we would like to recommend the following technique. The fabrication of a precision attachment R.P.D with custom metal housings and lingual arms, as separate components, provides many restorative benefits for the dental technician and dentist. This technique allows technicians to fabricate highly accurate and stress free partial frames while sustaining an easier degree of serviceability and retieveablity of the attachment housings/females when necessary. When using the VKS-SG system for fixed-removable combination cases, it is important to have an exact fitting reciprocating lingual arm and shoulder rest with an interlocking vertical groove. The main function of these is to divert occlusal loading forces away from the attachment ball and center them down the long axis of the tooth.

Step 1: Snap VKS-SG 2.2mm Yellow Matrices over the ball attachments.
Step 2: Snap VKS-SG 2.2mm Castable Housings (# S05420) over the yellow matrices.

Step 3: Cut the retention tail off the castable housing; however leave a small area to grab it with a mandrel. Use the SV Paralleling Mandrel (#36001151) and a surveyor to secure and maintain the plastic castable housing parallel.

Apply Pikuplast Pattern Resin into the shoulder groove rest and onto the plastic castable housing to create the lingual arm. Tip: Lightly sandblast the plastic housing prior to adding Pikuplast so that it adheres better to it. Reattach as needed, the retention tail of the castable housing following the contour of the ridge.

Step 4: Sprue, invest and cast the housing patterns with lingual arms.
Step 5: Finish the custom metal housings with lingual arms as needed and high shine the lingual arm. Sandblast the housing and tail portion.
Step 6: Use Ropak (# 52000165-powder, 52000164-liquid) light curing pink opaquer to mask out the metallic grey color.

Step 7: Block out and duplicate the master model with Exaktosil Duplicating Silicone (#54001147).

Refractory Models

Step 8: After Exaktosil has set; pour the refractory model using a fine grain investment and allow setting.
Note: Refractory model must be dry before waxing the RPD.

Step 9: Wax up the RPD.
Step 10: Sprue the waxed partial following the Bredent Casting Technique according to Sabath (#992961GB).
Step 11: Invest using the same investment used to pour the refractory model. Cast, fit and finish the frame as usual.

Step 12: Paint Ropak light curing opaque onto the saddle mesh areas.

Step 13: Use DTK Adhesive (#54001185) to bond the custom metal housings with lingual arms to the partial frame.

Step 14: Set-up teeth and process and finish acrylic as usual.

Tip: If the attachment metal housings ever require removal from the acrylic; a soldering iron or similar heated instrument may be used to soften the surrounding acrylic/bonding cement to facilitate their separation form the major connector.

Implant Bar

Instructions for Use in Fabricating Implant Bars


Download/Print Instructions

Step 1: A mandibular cast with 4 implants to be connected with a bar.
Step 2: Use a 0° plastic bar pattern and drill a 3mm hole in the area(s) where the zirconia ball attachment will be installed.

Tip: Use Pikuplast modeling resin to connect the bar sections to the implant waxing sleeves. Pikuplast Transparent (# 54000216) was used here; however any color may be used.

Step 3: Using a surveyor and a 2.2mm VKS Paralleling Mandrel (# 36001130); secure the zirconia ball and place it into the pre-drilled holes in the plastic bar pattern.

Note: Make sure that the mandrel is flush with the plastic bar pattern to ensure a proper installation of the zirconia ball.

Step 4: Use Pikuplast resin to connect the zirconia ball attachment to the plastic bar pattern as shown above.
Step 5: Contour the attachment areas of the bar with KBI Hard c&b milling wax (#51000920) in preparation for wax milling.

Step 5a: Prior to wax milling; carefully remove the excess Pikuplast resin that retains the zirconia ball to the plastic bar pattern using a small round bur.
Step 5b:gently push out the zirconia ball attachment.

Step 6: Check the attachment receptacles for a clean and accurate formation.
Step 7: Place the zirconia ball attachments back into the plastic bar pattern for space references and begin milling the wax to an ideal contour.

Step 8: Finish the wax-up of the pre-milled implant bar and inspect the attachment interface areas for clean and accurate formations.

Step 9: Once again, gently push out the zirconia ball attachments.

Step 10: Sprue the implant bar pattern following the Bredent Casting Technique according to Sabath. (#992961GB).

Step 11: The implant bar casting.

Step 12: The implant bar frame is finished milled.

Note: Low profile bar design with a flat occlusal surface to provide a wide stance platform for stabilizing an overdenture with overcasting.

Step 13: Use the XPdent Universal Wireless LED Black Light with UV paste (#X070040) to precisely fit-check the zirconia balls back into their receptacles. Paint the base of the zirconia ball attachment with the UV Paste and place it into the bar. Remove the ball and illuminate the area with the black light unit and selectively grind the bright orange “high-spots.”

Note: DO NOT over-adjust the attachment receptacles in the bar.

Step 14: Make sure that all zirconia ball attachments are accurately fitting into the implant bar frame and then remove them.
Step 15: We highly recommend using the Silano Ben bonding system (# 32000470) to increase the bond strength of DTK Adhesive (# 54001185) to the cast alloy implant bar when cementing the zirconia ball attachments.

Step 16: Apply DTK Adhesive following Bredent’s instructions for the product. Place a small drop into the Silano-Pen treated receptacles and push in the zirconia ball attachment. Wipe excess DTK off with an instrument and make sure that the attachment base is flush with the implant bar. Check the ball and neck area of ball for excess adhesive.

Tip: Use a VKS-SG 2.2mm green or yellow matrix to help secure the zirconia ball attachment while DTK adhesive is setting.

Step 17: The cast implant bar frame with bonded 2.2mm Zirconia Ball Attachments is finished and ready for the fabrication of the overcasting.



Instructions for Use in Overcasting Frame


Download/Print Instructions

Overcastings are modified removable partial denture frames used as secondary structures over implant bars to strengthen and stabilize implant bar supported overdentures.
Resin Overlay Technique – (No duplication or refractory model required) a technique for fabricating overcastings using Pikuplast Modeling Resin from Bredent to make a “lift off” type pattern which is cast in a conventional crown & bridge style.

The benefits of an overcasting frame are:
• Provides a stable base for the overdenture
• Keeps the attachments stress-free
• Strengthens “horseshoe” shaped over-dentures
• Provides metal housings for plastic attachment components
• Promotes an increased lifespan for bar retained overdentures
• Increases “value added” factor to implant supported removable prosthetics
Step 1: Snap the VKS-SG green matrices (#43005410) onto the ball patrices
Step 2: Place the 2.2 Castable SG Matrix Housings on the green matrices. Tip: Use the retention tails on the castable housings for easier handling.
Step 2a & 2b: Cut-off the retention tails as needed and cut-in some retention grooves. Block-out the undercuts using Splendido Hard c&b wax (#51000590). Paint a light coat of Vaseline onto the block out wax to facilitate its removal from Pikuplast modeling resin after it has set.
Tip: Lightly sandblast the outside of the plastic housings to improve their adherence to Pikuplast modeling resin.
Step 3 & 3a: Apply Pikuplast Modeling Resin over the blocked-out bar and plastic castable housings. (Orange # 54000212)

Steps 3b,c & d: After setting, remove Pikuplast pattern from the bar. Grind and adjust using carbides, rubber wheels, etc, etc. Ideal thickness for the pattern is 0.3mm in most areas. Inspect the inside of the overcasting pattern and remove any debris if necessary.

Step 4: Add mechanical retention such as mesh pattern turned upside down or you may also use Bredent Retention Crystals (0.5mm # 53000500) and adhesive (# 54000711).

Attach sprues following the Bredent Casting Technique according to Sabath (#992961GB). Invest the overcasting pattern using a fine grain investment and follow the manufacturer’s instructions for mixing.

Step 5: Cast as usual. Now selectively grind the inside of the overframe until a snug fit is achieved and then sandblast the outer surface.

Tip: Paint Colloidal Graphite (# 54000706) on the implant bar to use as high-spot indicator within the overcasting framework for easier seating/fitting.

Step 6: Use Ropak light curing pink opaquer (Ropak liquid # 52000164; Ropak powder 52000165) to mask out the grey, metallic color of the overcasting. Install the 2.2mm SG green matrices.