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Attachments
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ERA-RV Attachment
$35.08
811115
Extracoronal semi-precision dental attachment. Kit contents: 1 female, 2 black males, 2 white males, and 1 orange male. ...
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Stern Latch® IP/C complete
$212.00
802010
Intracoronal precision slide dental attachment. Actual product dimensions and minimum space requirements needed for sizing can be viewed in the Instructions for Use link....
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Hader Bar® Kit
$56.00
810001
Semi-precision bar attachment. Contents: 2 bars, 6 yellow riders, 6 fabricating riders, 1 seating tool. Actual product dimensions and minimum space requirements needed for sizing can be viewed in the...
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Small Tube Lock with ceramic rods -2 Pairs
$13.50
821005
Intracoronal semi-precision rod and tube attachment. Actual product dimensions and minimum space requirements needed for sizing can be viewed in the Instructions for Use link. ...
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Sterngold's first dental attachment was developed in 1921. We have been producing precision dental attachments longer than any company in the world and are the largest American manufacturer of dental attachments for removable partial dentures, overdentures and segmented bridges. We developed the patented Stern ERA®, today's most popular resilient attachment. In addition, Sterngold offers implant overdentures as the newest dental attachment application.
Dental attachments provide much more than merely an esthetic alternative to clasps, they provide numerous biomechanical advantages. Segmenting a long bridge with an attachment may mean the difference between long term success and failure. And overdentures, whether supported by natural roots or implants are far superior to complete dentures. Anchoring an overlay denture to retained roots enhances denture stability and provides the patient with numerous functional advantages.
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Measuring for Attachments
Sterngold works hard to make using attachments easy for you. In this catalog, we provide our best advice on space requirements based on extensive practical experience.
Each attachment description lists the minimum space required for placement of the attachment, to assure a high rate of success and long-term function. Allowance is already made for restorative materials, such as dental casting alloys or denture acrylic, surrounding and holding the attachment component. With this information you can measure a study cast and decide if an attachment can be used in the available space.
These allowances are:
- Denture acrylic thickness occlusal to extracoronal attachment components, bars and overdenture attachments(influences Height), 1mm
- Denture acrylic thickness lateral to attachment components (influences Removable Component Width), 1mm on each side.
- Casting alloy thickness between a box preparation axial wall and a metal, intracoronal, precision attachment female (influences Prep Depth), 0.4mm.
- Casting alloy thickness for root cap coping (influences Height), 0.5mm.
- Solder thickness (influences Height), 0.3mm.
Working with Metal Attachments
Depending on the attachment's design, metal components are anchored in denture acrylic, soldered to a casting, or invested along with a wax pattern and cast against with a dental alloy. Use an alloy with a casting temperature at least 100°F (40°C) below the lowest value of the component's melting range when casting against an attachment component.
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Melting Ranges of Attachments |
Degrees F |
Degrees C |
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Ceramacast components |
2600-2760 |
1425-1515 |
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Ceramicor components |
2550-2715 |
1400-1490 |
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Doral components |
1705-1860 |
930-1015 |
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Elitor components |
1615-1725 |
880-940 |
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Iridium-platinum components |
3300-3360 |
1820-1850 |
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NPS components |
2700-2850 |
1480-1565 |
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OSV components |
1885-2010 |
1030-1100 |
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