RenfertShips in 3 business days
Renfert GEO Preformed Wax Clasps — 10 Sheets · Ring · Plain
SKU 043-1124MFR# 6883005
Shape
Ring
Backing
Plain
Self-adhesive$23.00
Plain$19.00
The Renfert GEO Premolar clasps, self-adhe is a dental laboratory product supplied by Renfert for dental lab use. Catalog code 6383002.
Renfert GEO Preformed Wax Clasps — 10 Sheets is a clasp from Renfert, part of the GEO line.
This page carries 5 shape options: Molar, Premolar, Ring, straight, Ring, Bonyhard. This page carries 2 backing options: Self-adhesive, Plain.
Find it on our Dentures & Acrylics shelf, under Partial Denture Framework.
Orders placed before 3 PM ET ship the same day when the item is on our shelf (otherwise within 3 business days), and ground shipping is free over $10.
Product
- Manufacturer
- Renfert
- Manufacturer #
- 6883005
- Item code
- 043-1124
Catalog path
- Marketplace
- Laboratory
- Category
- Dentures & Acrylics
- Subcategory
- Partial Denture Framework
Ordering
- Status
- Ships in 3 business days
More from Partial Denture Framework
Stocked in the same subcategory.
Questions
What is GEO used for?
The Renfert GEO Premolar clasps, self-adhe is a dental laboratory product supplied by Renfert for dental lab use.
Which shape and backing options are on this page?
This page carries 5 shape options: Molar, Premolar, Ring, straight, Ring, Bonyhard. This page carries 2 backing options: Self-adhesive, Plain. Pick one to see its price, part number and stock.
When does it ship?
In-stock orders placed before 3 PM ET ship the same day; anything not on our shelf ships within 3 business days.Ground shipping is free over $10.
About clasps
A preformed clasp is built into an appliance such as a partial denture and helps stabilize it by fastening it to an adjacent tooth. A circumferential clasp encircles a tooth by more than 180 degrees.
A framework is the skeletal portion of a prosthesis, usually metal, around which and to which the remaining portions are attached. Cobalt-chromium alloy remains the most common material for removable partial denture frameworks.
The FDA lists the preformed clasp as a Class I device (21 CFR 872.3285).
How clasps, lingual bars, mesh and strengtheners differ
- Clasps — The part that grips the tooth; when overloaded, cast clasps tend to break and the more flexible wrought ones to deform.
- Strengtheners — Preformed grids, braids and plates that reinforce the acrylic base.
- Mesh — Sheet mesh embedded in the acrylic base as reinforcement.
- Lingual Bars — The bar that joins the two sides of a lower partial denture.
What to look at when choosing
Clasp material: in one study cast clasps gave the highest retentive forces, and round wrought wire of 1 mm diameter the next highest. Nickel-free wrought wire was more flexible than stainless steel and exerted less retentive force.
Metal or wax: some clasps, bars and retentions on this shelf are wax shapes. Dental wax is used to build the patterns from which custom metal prostheses are cast.
Framework metal: a study attributes the place of cobalt-chromium to its high elastic limit, resistance to wear and corrosion, and biocompatibility.
Sources: The Glossary of Prosthodontic Terms, 9th edition (J Prosthet Dent 2017) · Zakaria Hashem Mostafa et al. 2025, Removable partial denture with lingual bar major connector in cobalt chromium, PEEK and PEKK (PMC12857090) · FDA 21 CFR 872.3285, Preformed clasp · Owen & Naidoo 2022, Guidelines for the choice of circumferential wrought wire and cast clasp arms for removable partial dentures (Int Dent J) · Kumar et al. 2017, Effect of Reinforced Autopolymerizing Resin on the Flexural Strength of Repaired Heat-polymerized Denture Base Resin (PMC5682712) · Bollepalli et al. 2025, Conventional and polypropylene mesh reinforced poly methyl methacrylate denture base resin (PMC12370094) · FDA 21 CFR 872.6890, Intraoral dental wax
