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Harvest Dental Poly Splint True Function Discs, Clear · 95 mm ZZ · 25 mm
SKU 030-0409MFR# 90050-25
Disc
95 mm ZZ
98.5 mm Open$52.99
95 mm ZZ$55.11
Thickness
25 mm
Promotes patient comfort. Strong and gentle. Purposed Surgical Guide.
Harvest Dental Poly Splint True Function Discs, Clear is a PMMA disc from Harvest Dental.
This page carries 2 disc options: 98.5 mm Open, 95 mm ZZ. This page carries 3 thickness options: 16 mm, 20 mm, 25 mm.
Find it on our Digital Lab & CAD/CAM shelf, under CAD/CAM Blocks & Discs.
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
- Harvest Dental
- Manufacturer #
- 90050-25
- Item code
- 030-0409
Catalog path
- Marketplace
- Laboratory
- Category
- Digital Lab & CAD/CAM
- Subcategory
- CAD/CAM Blocks & Discs
Ordering
- Status
- Ships in 3 business days
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Questions
What is it used for?
Promotes patient comfort.
Which disc and thickness options are on this page?
This page carries 2 disc options: 98.5 mm Open, 95 mm ZZ. This page carries 3 thickness options: 16 mm, 20 mm, 25 mm. 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 PMMA discs
PMMA, polymethyl methacrylate, is used in dentistry for artificial teeth, denture bases, retainers and provisional crowns. Milled PMMA is used for long-term provisional restorations, up to one year. The FDA defines temporary crown and bridge resin as a material such as polymethylmethacrylate for a temporary prosthesis used until the permanent restoration is made, Class II (21 CFR 872.3770).
A CAD/CAM block or disc is a prefabricated piece of material from which a restoration is milled by a computer-controlled machine. The Glossary of Prosthodontic Terms defines CAD-CAM as the computer-controlled subtractive fabrication of a three-dimensional object, used to produce crowns, veneers, inlays, onlays and other prostheses. By material, a systematic review groups CAD-CAM materials into silicate ceramics, oxide ceramics, composite resins, PMMA, PEEK, polymer-infiltrated ceramic network materials and metal.
How the types of block and disc differ
- Zirconia discs and blocks — The strongest of the materials here, with aesthetics somewhat below the silicate ceramics. Milled oversize and then sintered, because it shrinks in the furnace.
- Hybrid ceramic blocks — Part ceramic and part polymer, where zirconia is all ceramic. Resin block composites can be used for permanent restorations.
- PMMA discs — A polymer for provisional work, where zirconia and hybrid ceramic are for permanent restorations.
- Wax discs — Not a final material: the milled wax is a pattern that is removed from the mould, usually by heat.
What to look at when choosing a zirconia disc
Yttria content: the cubic phase and the translucency rise with the yttria concentration. More cubic phase improves translucency and lowers strength.
Grade names: with 3 to 8 mol% yttria the material is called partially stabilised zirconia (PSZ), and at about 3 mol% it is close to fully tetragonal (TZP).
Colour: a zirconia restoration is coloured either by using a pre-coloured block or by immersing or brushing the white restoration with colouring solution.
Sintering: the optimum sintering temperature range given in the review is 1350 to 1550 °C.
Sources: Clinical Applications and Mechanical Properties of CAD-CAM Materials in Restorative and Prosthetic Dentistry: A Systematic Review (J Funct Biomater 2023) · The Glossary of Prosthodontic Terms, 9th edition (J Prosthet Dent 2017) · Revolution of Current Dental Zirconia: A Comprehensive Review (Molecules 2022) · Biofilm Formation on Hybrid, Resin-Based CAD/CAM Materials for Indirect Restorations: A Comprehensive Review (Materials 2024) · FDA 21 CFR 872.3770, Temporary crown and bridge resin · Comparison the Marginal and Internal Fit of Metal Copings Cast from Wax Patterns Fabricated by CAD/CAM and Conventional Wax up Techniques (J Dent Shiraz 2013) · FDA 21 CFR 872.6890, Intraoral dental wax · Translucent Zirconia in Fixed Prosthodontics: An Integrative Overview (Biomedicines 2023)
