Sterngold | Partial Denture Attachments – Resilient
ERA®
These stress directing attachments for Kennedy Class I and II cases place occlusal load on both the abutment teeth and the edentulous ridge. The ridge is more heavily loaded than when using rigid attachments, and the abutment teeth are more lightly loaded.
ERA ® –RV (STANDARD) ANDMICRO ERA ®
• Extracoronal semi–precision attachment • Universal hinge with vertical resiliency • Nylon male, plastic pattern female • Black fabrication male with built–in spacer • Six color-coded males to create a consistent level of retention (white, orange, blue, grey, yellow and red) • Two additional males available in green and purple for cases where the red male is no longer retentive enough (for ERA-RV only) • Males easily changed without use of autopolymerizing acrylic • Optional ERA® Metal Jacket holds the attachment male in the denture base and is sold pre–loaded with a black fabrication male. Stainless steel to allow soldering or laser welding.
White, Orange, Blue, Grey, Yellow, Red, Green, Purple
Fixation Male— retained directly in processed denture acrylic or ERA®–RV/Micro ERA® Metal Jacket Female—cast as part of crown pattern
Cast plastic components using alloys with aminimumVickers hardness of 200 and at least 85,000 psi ultimate tensile strength. Appropriate choices are Pegasus ceramic alloy and Sterngold 100 crown and bridge alloy for yellow gold castings.
Partial Denture Processing Jig
ERA®-RV (standard) MinimumSpace Required Definitions of Dimensions, pages 6-7 Height FCWidth Prep Depth
Paralleling Mandrel
RCWidth
3.5mm†
2.8mm
Normal crown
6.3mm
ERA®Metal Jacket thickness: 0.3mm †Add 1.0mm for patients with habitually strong bites.
ERA® Attachment Extraction Tool
Micro ERA® MinimumSpace Required Definitions of Dimensions, pages 6-7 Height FCWidth Prep Depth
ERA®–RV Metal Jacket
RCWidth
3.0mm†
2.2mm
Normal crown
5.4mm
ERA®Metal Jacket thickness: 0.3mm †Add 1.0mm for patients with habitually strong bites.
ERA®-RV Micro ERA® Impression Copings
Core Cutter
Seating Tool
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ATTACHMENT CATALOG
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