Overdenture Bar Attachments

Horix Hader Bar Instructions

Hader Bar Instructions

Horix/Hader Bar Instructions

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Why use the Processing Spacers?

Horix Hader Bar Instructions1The width of the “tail” of the green processing spacers matches the widest part of a Hader clip. This allows easy insertion and removal of the actual clip, and more importantly provides a “tunnel” that is wide enough for removal and insertion of the prosthesis.

The left side of this picture shows the tunnel created using the processing spacer. The flange of the clip has room to flex out over the height of contour and engage the Hader Bar.

The right side of this picture shows the problems that may be encountered when not using the processing spacer–the clip is locked in acrylic; the flanges of the clip are pressed inward making clip wear very possible, and insertion very difficult or even impossible without breakage. This clip can not expand, or flex outward while going over the height of contour of the bar.

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Universal Plunger Loc Attachment

Universal Plunger Loc Attachment

Applications

  • Removable prosthetics such as Bar Overdentures, Removable Telescopic Crowns and Bridges, and Partial Dentures.

Specifications

Universal Plunger Loc Attachment1

Housing Diameter = 2.9mm
Plunger/Pin Diameter = 1.5mm
The pin diameter of the Universal Plunger Lock Attachment is the same as the SwissLoc NG and the Lew Passive Attachments.
Length = 7.5mm, but may be reduced to 4mm.
Length is measured from head of plunger to end of housing in a closed position.
Material: Titanium

Note:

  • Do not pull the plunger pin out of the housing. Pulling the plunger pin out of the housing will destroy the internal plastic sleeve. If the plunger pin has been pulled out of the housing, it needs to be replaced by a new pin.
  • The Universal Plunger Lock attachment is titanium and therefore not suitable for casting. Polymerize into acrylic resin, or bond into a secondary structure.
  • When reducing the length of the Universal Plunger Loc, cut at slow speeds or with water coolant to avoid generating heat and damaging the plastic insert.

Technique

For removable partial dentures, wax the crown as usual. A milled lingual support arm and rest is designed into the abutment tooth crown. Wax–or place a pre-formed 0 degree, 1mm thick plastic pattern as holder for the Universal Plunger Lock attachment.

For overdenture bar constructions, use a 1.5mm reamer to pre-drill a hole into plastic or gold bar extension. Use a 1.5mm carbide to place the hole in titanium bar structures.

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Utilize a silicone matrix of the tooth set-up to verify the position of the bar pattern as well as to determine the proper length of attachment needed.

After try-in and a passive bar fit verified, seat the wax denture over the bar. Make horizontal access holes in the buccal flange for processing jigs. Wax-up completely around the processing jigs. Flask the completed set-up, making sure that the processing jig is indexed in plaster/stone, and boil out.

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Wax-up completely around the processing jigs. Flask the completed set-up, making sure that the processing jig is indexed in plaster, and boil out.

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  • After curing, pull the plunger to an out position and finish the acrylic around the attachment.
  • Create a slight mesial depression in the acrylic to facilitate removal by the patient.
  • The tip of the plunger pin may also be rounded and smoothed to facilitate insertion by the patient.

Secondary Structure Fabrication

On the master cast, place the processing jigs into the holes in the primary structure. Check for proper positioning and relieve undercuts. A thin layer of vaseline may be placed on the jigs to make removal of the pattern of secondary structure easier. Wax the secondary structure, adding retentions. Remove the pattern, check for fit on the primary structure, and make any adjustments needed.

Once the secondary structure is cast and finished, it should have a friction fit with the primary structure. The horizontal access hole should be visible through both the primary and secondary structures. Acrylic is processed in the usual manner, placing the processing jig in through the secondary and fully seated inside the hole in the primary structure.

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A 1:1 mixture of Ceka site may be used to bond the Plunger Lock attachment into the framework, or the attachments may be picked up with a runny mixture of self curing acrylic.

Servicing

Servicing the Universal Plunger Loc is very simple.

If you need to replace a male plunger, or if a male plunger at any time has been removed entirely from the metal housing, a new Plastic Insert is required. Remove the broken plastic from the male plunger, and use an explorer or like instrument to remove the remaining plastic from inside the metal housing.

Push the narrow end of the plastic insert into the metal housing and then push the metal male plunger into the housing/insert. A second plastic housing is now included with all Universal Plunger Loc attachments to facilitate servicing.

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The Ackermann Clip

Ackermann Clip Technique

The Ackermann Clip

A bar clip attachment that allows free movement of the prosthesis. Its applications are for overdentures and implant prosthetics. The principle feature of the Ackermann Clip is that the bar may be adjusted to follow not only the vertical contours of the mucosa, but also the anterior-posterior curvature of the edentulous ridge. The spacer provides for both vertical and rotational free movement of the prosthesis. The clip is fully adjustable and easy to insert and remove.

The Ackermann Clip1

Wide field of applications, as the bar may be bent in all directions allowing it to exactly follow the contours of the ridge.

The Ackerman may be used for square or curved arches.

Due to its short 3.6mm length, the sleeve may be positioned on the bar even in a deep narrow trough.

The Ackermann Clip2
The Ackermann Clip3

No soldering of the clip. The horizontal retention tangs (FIG 2-3) provide firm retention in acrylic and require no additional vertical space. The cylindrical mesial-distal retentions are easily bent to the preferred position prior to processing. There are two different space saving desings. Firm yet resilient support of the prosthesis assured by the elasticity of the riders. Spacer provides for free vertical movement.

Easy path of insertion and removal.

The ackermann clip fits the Round Bar, the Hader Bar, and the small Dolder Bar. The shape of the bar is indicated by the amount of room available, by the shape of the alveolar ridge, and the type of construction.

Technique

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Locator-Implant-Bar-Instructions7

Locator Implant Bar Instructions

Locator Bar Attachment System Instructions

CLASSIFICATION

Universal hinge, resilient attachment for bar splinted endosseous implants.

INDICATIONS

The Locator Bar Attachment System is designed for use with overdentures or partial dentures retained in whole or in part by bar splinted endosseous implants in the mandible or maxilla.

CONTRAINDICATIONS

Not appropriate where a totally rigid connection is required.

STERILIZATION

All components and instruments are supplied NON-STERILE. Tools and metal instruments may be sterilized following standard clinical procedures, prior to use.

Single-Use Devices

Locator Males: The inadvertent re-use of Locator nylon males could cause loss of retention for the overdenture due to wear from previous use or damage during removal with the Locator Core Tool.

Locator Abutments: The inadvertent re-use of Locator abutments could contain patient contamination build-up and subsequent wear of the retention bands. This would result in the device to perform with improper fit and function which would result in loss of retention for the prosthesis.

FEATURES

1. LOWEST VERTICAL HEIGHT: The total height of the Locator Bar Attachment (abutment plus male) is only 2.5mm on a cast alloy bar.

2. LOCATING DESIGN: Self-locating design allows a patient to easily seat their overdenture without the need for accurate alignment of the attachment components.

3. RETENTION INSIDE AND OUT: The patented Dual Retention innovation provides the Locator Attachment with greater retention surface area than ever before available with other attachments. A combination of inside and outside retention ensures the longest lasting performance.

4. ROTATIONAL PIVOTING ACTION: The design of the pivoting Locator Male allows a resilient connection for the prosthesis without any resulting loss of retention. The retentive nylon maleremains completely in contact with the abutment socket while its metal denture cap has a full rangeof rotational movement over the male.

5. CHOICE OF THREE TECHNIQUES: The Locator Bar Attachment can be placed by any of the three popular techniques used by Dental Laboratories to fabricate an implant retained bar with attachments:

  • Drill and tap the bar for a removable threaded Locator Bar Female connection.
  • Laser weld a Locator Laser Bar Female to the bar.
  • Cast-to the stainless steel Locator Cast-To Bar Female with gold alloy.

PLACEMENT OF THE LOCATOR BAR ATTACHMENT

The Locator Bar Attachment can be placed by any choice of the three following techniques used by a Dental Laboratory to fabricate a bar with dental attachments.

CAUTION: The most critical consideration in the proper placement of the Locator Bar Attachment on a milled or cast bar is that a minimum of 1.0mm of bar material remains between the edge of a screw retaining the bar and the Locator Bar Female, or a minimum of 5.0mm between the edges of multiple placed Locator Bar Females that is required to avoid interference of the Locator Titanium Denture Caps. (Locator Bar Female = 4.0mm Diameter, Locator Denture Cap = 5.5mm Diameter).

Technique to drill and tap a bar for a removable threaded Locator Bar Female

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Technique with threaded castable insert for a removable threaded Locator Bar Female

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Technique to laser weld a Locator Laser Bar Female on top of a bar

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Due to the additional space allowed for laser welding, the total height of the Laser Bar Attachment is slightly higher (2.75mm) than the other types of Locator Bar Attachments at 2.5mm

The laser welding process does not affect the wear resistant titanium nitride coating on the Locator Laser Bar Female.

Technique for Casting a Locator Cast-to Bar Female into a gold alloy bar

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  • It is recommended to use debubblizer to reduce surface tension during investing procedures.
  • Investing. The most successful castings have been accomplished by using Ceramigold Investment by Whip Mix Corp. or an equivalent High Heat Investment.
  • Mix a liquid/powder ratio of Ceramigold using 12ml to 60 grams of powder for each packet of mix needed. Hand mix for 15 seconds and vacuum mix for 90 seconds at 350-450 RPM. The investment material should be carefully painted into each attachment cavity to avoid trapping bubbles and to prevent gold from going inside the female. The remainder of the investment poured into the ring will stabilize the female during burnout. Place the ring in a water bath for one hour, then bench set for a half hour.
  • Burnout. Place ring in a cold furnace (sprue side down) and raise the temperature to 1500° F maximum. Use a rate of climb of 0° F to 1500° F maximum over a time period of one hour. Hold at 1500° F maximum until burnout is complete. (Refer to investment manufacturer’s instructions for suggested burnout duration.)
  • Casting. Use only precious or semi-precious alloys for casting the stainless steel female into a bar. Non-precious alloys should not be used. Cast the bar using recommended temperatures of the alloy manufacturer. The stainless steel Cast-To Bar Female will withstand a temperature of up to 2000° F without any dimensional change. Do not allow casting temperature to raise above 2000° F which will melt the stainless steel Bar Female!
  • Divesting. After casting, allow the casting to bench cool for 20 minutes. Be careful to push out the casting and investment with proper tools. It is not recommended to hammer or bang on rings that may distort the castings. To remove the investment material from the Cast-To Bar Female without damage to the stainless steel, use an acid-free investment and porcelain remover solution in an ultrasonic unit for a period of 30-45 minutes. (Do not use a bur to remove the investment, sandblasting with aluminum oxide, or an acid pickling solution, all of which can damage the retention surfaces of the Bar Female attachment.) Clean the bar containing the Locator Cast-To attachment in an ultrasonic cleaner solution, shell blast, bead blast, or use a Fibgerglass or Brass Pencil.
  • Finishing and Polishing. When polishing with a rubber wheel, use caution not to damage the Cast-To Bar Female attachment. Polish the surface of the bar to make a smooth surface. The Locator Parallel Post can be placed on the female to protect the attachment while polishing. [If additional polishing of the female attachment is required, it is recommended to only use glass beads at a low pressure (40 PSI) or a fiberglass or bristle polishing brush.]
  • After polishing the bar, place a Locator Processing Cap Male onto each Cast-To Bar Female and check for proper fit. Clean again in an ultrasonic solution and deliver to the dental office.
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Processing the Males

Processing the males is the same as for the Locator stud overdenture cases. Block out the undercuts, specifically between the bar and the tissue

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Place the two white blockout spacers over the female attachments. Snap on the Locator metal housing with the yellow processing insert. Proceed on to setting the teeth, boil out, and packing/processing procedures as normal for Locator attachments.

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Delrin Bar Instructions

Reline/Fabrication of new prosthesis using the Delrin Analogue Bar

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Why use the Processing Spacers?

Delrin Bar Instructions6The width of the “tail” of the green processing spacers matches the widest part of a Hader clip. This allows easy insertion and removal of the actual clip, and more importantly provides a “tunnel” that is wide enough for removal and insertion of the prosthesis.

The left side of this picture shows the tunnel created using the processing spacer. The flange of the clip has room to flex out over the height of contour and engage the Hader Bar.

The right side of this picture shows the problems that may be encountered when not using the processing spacer–the clip is locked in acrylic; the flanges of the clip are pressed inward making clip wear very possible, and insertion very difficult or even impossible without breakage. This clip cannot expand, or flex outward while going over the height of contour of the bar.

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Preci Bar Components

Preci Bar Components

Preci Bar (Dolder) System

Preci Bar Standard (rigid) Complete (1100MR/OR)

U-shaped rigid bar attachment. Rider for retention in acrylic resin. Length 50mm, Diam 2.2mm, Height 3.5mm. One bar and one rider.

ORAX alloy*

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Learn More About Preci-Bar Mini Gold Female 50mm

Preci Bar Standard Rider (1100/H/MR/OR)

Adjustable female rider for retention in acrylic resin. Length 50mm, Width 4.95mm, Height 3.5mm. One (female) rider per package. At least 3 soldering locations must be preserved when shortening.

ORAX alloy*

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Learn More About Preci-Bar Standard Gold Female 50mm

Preci Bar Standard Rider PALLAX

Adjustable female rider for retention in acrylic resin.
Length 50mm, Width 4.95mm, Height 3.5mm.
One (female) rider per package.
At least 3 soldering locations must be preserved when shortening.

PALLAX alloy

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Learn More About Preci-Bar Mini Pallax Female 50mm

Preci Bar Standard (1100/B/OR)

U-shaped rigid bar for soldering between natural abutments or implant gold cylinders. Length 50mm, Diam 2.2mm, Height 3mm. One bar per package.

ORAX alloy*

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Learn More About Preci-Bar Standard Rigid Gold Male 50mm

Preci Bar Plastic Standard (1011/B) Rigid

U-shaped bar for waxing up between natural abutments or implant plastic cylinders.
Length 50mm, Diam 2.2mm, Height 3mm.
Four bars per package.

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Learn More About Preci-Bar Standard (Rigid) Plastic Bar (4-Pack)

Preci Bar Plastic Standard (1013/B) Resilient

U-shaped bar for waxing up between natural abutments or implant plastic cylinders.
Length 50mm, Diam 2.2mm, Height 3mm.
Four bars per package.

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Learn More About Preci-Bar Mini (Resilient) Plastic Bar (4-Pack)

Preci BarWax Standard

U-shaped bar for waxing up between natural abutments or implant plastic cylinders.
Length 50mm, Diam 2.2mm, Height 3mm.
Four bars per package.

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Preci Bar Paralleling Mandrel Standard (1100P)

Paralleling mandrel to incorporate short segments. Length 10mm, Diam 2.35mm, Marking 2 grooves.
One piece per package.

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Learn More About Preci-Bar Mandrel Standard

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Preci Bar Mini (resilient) Complete (1103/MR/OR)

Ovoid resilient bar attachment with vertical and rotational movement. Adjustable rider for retention in acrylic resin. Length 50mm, Diam 1.6mm, Height 2.3mm. One bar and one rider.

ORAX alloy*

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Small TI bar w/OR female

Preci Bar Mini Rider (1102/H/MR/OR)

Adjustable female rider for retention in acrylic resin. Length 50mm, Width 4mm, Height 2.8mm. One (female) rider and one space maintainer per package. At least 3 soldering locations must be preserved when shortening.

ORAX alloy*

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Learn More About Preci-Bar Mini Gold Female 50mm

Preci Bar Mini Rider

Adjustable female rider for retention in acrylic resin.
Length 50mm, Width 4mm, Height 2.8mm.
One (female) rider and one space maintainer per package.
At least 3 soldering locations must be preserved when shortening.

PALLAX alloy

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Preci Bar Mini (1103/B/OR)

Ovoid resilient bar for soldering between natural abutments or implant gold cylinders. Length 50mm, Diam 1.6mm, Height 2.3mm. One bar per package.

ORAX alloy*

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Learn More About Preci-Bar Mini Resil. Gold Male 50mm

Preci Bar Plastic Mini (1012/B) Resilient

Oval bar for waxing up between natural abutments or implant plastic cylinders.
Length 50mm, Diam 1.6mm, Height 2.3mm.
Four bars per package.

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Learn More About Preci-Bar Mini (Resilient) Plastic Bar (4-Pack)

Preci BarWax Mini

Oval bar for waxing up between natural abutments or implant plastic cylinders.
Length 50mm, Diam 1.6mm, Height 2.3mm.
Four bars per package.

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Preci Bar Paralleling Mandrel Mini (1102P)

Paralleling mandrel to incorporate short segments. Length 10mm, Diam 2.35mm, Marking 1 groove.
One piece per package.

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Learn More About Preci-Bar Mandrel Mini

* Please note that pricing for ORAX (GOLD) attachments moves with the Gold Market. Call for Current Pricing.

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Locator Core Tool Instructions

Instructions for Use:  LOCATOR CORE TOOL

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NOTE: If you have the new LOCATOR Core Tool complete, (Preat order number 8393) start with Step 2. If you have purchased the newly redesigned Male Removal Tool (Preat order number 8397) portion separately, start with Step 1.

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1. Replace the previous curved Male Removal Tool portion of the LOCATOR Core Tool with the new tip (8397), adding it to the Core Tool’s existing middle (Male Seating Tool) and end (Abutment Driver) sections. Tighten all 3 pieces together.

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2. Loosen the new (8397) Male Removal Tool a full 3 turns counter clockwise (you will see a visible gap).

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3. To remove a LOCATOR nylon male from the titanium metal housing; simply insert the new tip into the cap/male assembly and push straight in to the bottom of the nylon male. Then tilt the tool so that the sharp edge of the tip will grab hold of the male and pull it out of the cap.

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4. To discard the nylon male from the new tip on the Core Tool; point the tool down and away from you and tighten the new Male Removal Tool clockwise back onto the Core Tool. This will activate the removal pin and dislodge the nylon male from the tip end of the Male Removal Tool

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5. Separate the Male Removal Tool section from the LOCATOR Core Tool and use the Male Seating Tool end of the remaining two sections to place a new nylon male into the empty titanium metal housing.

Overdenture Bars

OVERDENTURE BARS

Overdenture Bars

Bar systems may be utilized for overdentures, removable partial dentures, and implant prosthesis. Bars may be rigid or resilient, permitting free movement of the prosthesis to direct forces away from the retaining abutments to the supportive bone and tissue. Bars provide more stability and retention than studs with the additional benefit of abutment splinting. Bar systems are generally in one of three types:

  1. Direct Retainers, such as the Hader or Dolder bar systems
  2. Incorporated into the bar, such as Locator or Clix bar attachments.
  3. Offset attachments, such as the Plunger Loc, Sagix, or Vertix.

The shape of the bar is indicated by the amount of room available, by the shape of the alveolar ridge, and the type of construction. Do not engage labial soft tissue undercuts with the denture base flange, as this will alter the path of insertion and cause excessive wear and servicing requirements.

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The Hader Bar and rider system is the most popular of all bar systems due to its economy and simplicity.

The system allows the prosthesis to rotate around the bar.

Hader bars provide both stability and retention.

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4 grips of Hader clips–the reduced retention white, standard retention yellow, increased retention red, and the salvage Blue clips for worn bars.

When utilized with the metal housings, adjusting retention for the patient is simple–remove the present clip and insert the proper retention clip.

Common application is processing the Hader Metal Housings into the denture utilizing the Hader Processing Spacers, and then using one of the four grips of plastic Hader clips in the metal housings.

Relines or making a new prosthesis is made easy by using the Hader White Delrin Analog or Aluminum Analog.

Choose either the thin (0.2mm) metal housings for accurate seating of the plastic clips or the new Alignment Housings.

Overdenture Bars2
The Ackermann Clip2

Ackermann Clip (Buccal-Lingual retention)
Gold or Stainless Steel

The Ackermann Clip3

Ackermann Clip (Mesial-Distal retention)
Gold or Stainless Steel

The Ackermann clip is an universal precious metal clip or rider that will fit the Hader, Dolder, and Round bar. The Ackermann clip features adjustable retention, easy patient insertion and removal, while requiring less vertical space due to its horizontal or vertical retention tangs.

Due to its short (3.6mm) length, the sleeve may be positioned on the bar even in a deep narrow trough. No soldering of the clip is required.

The Ackermann BL retention tangs provide firm retention in acrylic and require no additional vertical space.

The retention cylinders on the Mesial Distal clip are easily bent to the preferred position.

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The Preci (Dolder) Bar is produced in a precious alloy or as a plastic pattern.

The bar and sleeve attachment are used for retaining removable partial dentures and overdentures.

The pear or oval shape is used for a resilient prosthesis providing vertical and rotational movements.

The ‘U’ shape is for a rigid, or non- resilient, prosthesis.

Precision Design and Manufacturing Center

The PREAT Design and Manufacturing Center will assist you in designing your more complex and difficult implant fixed and removable prosthetics.

Overdenture bars, bars with attachments, fixed complete “screw-down” dentures, and bridge frameworks are available in Titanium and ceramic chrome cobalt for all major implant systems.

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Preci Clix

2.25mm Ø sphere.
Audible clicking sound for patient security.
Castable sphere, bondable TI sphere, or threaded TI sphere.
Females may be paralleled using the Clix Female Mandrel.

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The new LOCATOR Bar Attachment System contains the same self-aligning feature, superb retention, long lasting durability, and low attachment profile that you currently enjoy with our top selling LOCATOR Attachments. Now these benefits are available for your immediate use when the splinting of implants is required with a bar for added stability.

Laser weld, cast-to, and thread-in options.

Universal Plunger Loc Attachment

A titanium locking pin attachment designed for resilient or rigid retention on implant bars,
telescopic, or partial denture constructions.

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Sagital ball attachment with segmented female for implant bar applications. The male is available in plastic and cast in a hard alloy, in pre-fabricated metal and cast-to with any alloy, or also as a threaded male with a special cast-on base ring.

Consistent, accurate, and reliable.

Overdenture Bars
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CSA

CSA Instructions

Castable Spherical Attachment for extracoronal partial dentures and overdenture bars.

Preci Vertix and Vertix “P”

The Preci Vertix and Vertix “P” provides for hinge and vertical movements. The Vertix is a very simple yet popular system that provides patient comfort and abutment protection.

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Laser System

Locator for titanium and precious alloys
CSA for titanium
Preci Vertix for titanium
Preci Clix for titanium and precious alloys
Preci Profile TI bar structure

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Round Bar Round

A round bar is useful in situations where the bar must be bent to accommodate the ridge anatomy, or in close-bit situations.

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8° Tapered Plasti-Wax Bars

Clean burnout plasti-wax bar patterns for use with quick set investment. Ideal for implant supported bar overdenture constructions. Package of 4.

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The castable plastic and plasti-wax patterns are available in profiles of the Hader and Round bars to facilitate the use of non-precious alloys and direct casting. The plastic wax burnout patterns are recommended when using a fast burnout technique.

All are available in packages of 4 to facilitate the shaping and contouring of bars to the individual anatomy. The bars are approximately 6 cm long. The diameter is 1.8 mm for Hader and round bars.

Very economical and Easy to work with!

Preci Clix Paralleling Mandrel

Preci Clix Paralleling Mandrel

Preci Clix

The All A-Round Ball that really Clicks!

The Use of the Female Paralleling Mandrel

Preci Clix Paralleling Mandrel

The Clix female paralleling mandrel may be used for the Preci Clix, Preci Ball, and all other 2.25mm Ø spheres.

Using the 1211p Female Paralleling Mandrel in a surveyor, position the metal housing on the male attachment so that it is parallel to the path of insertion/removal of the other abutments.

Preci Clix Paralleling Mandrel
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Different alignments of attachments. Remember, there are three planes that the attachments may be non-parallel in.

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Parallel attachments with non-parallel females.

Forces not directed along the long axis, thus increased loading and wear. Greater chance of attachment wear.

Non-parallel attachments with corresponding females.

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Difficult path of insertion and removal leading to excessive wear on attachment.

The use of the Preci Clix 1211 Paralleling mandrel.

The females are parallel, allowing for an easy path of insertion and removal. This parallelism also allows the prosthesis to rotate.

The height of contour is still engaged around the sphere, and the Clix female allows the undercuts of the sphere to be engaged. 30º is about the maximum degree of divergence that allows the Clix females to still engage the undercut of the sphere.

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