Can someone give me the pros and cons of these materials used for reinforcing dentures?
Has anyone used both materials?
I spoke with the Preat sales person and he said that the Fiber Force will not bond to the acrylic and the Perma Mesh will. Fiber Force's literature says that the Fiber Force will bond to any denture acrylic.
Both are priced about the same how do you decide which to use?
Thanks,
I apologize for the incorrect information you received from our sales rep. I wish to go on record stating that Fiber Force will bond to acrylic.
I think Fibre Force is a very good material and there are certainly times you want to use it. There are a great number of technicians who I admire and respect who have great success with FF. In my opinion, since studies show that the greatest area of tension--and thus fracture--is the incisal notch on a Maxillary denture, shouldn't the reinforcement be placed in this weakest area? To be frank, I would recommend using an unidirectional fiber (like eFiber) in this area instead of a weaker multi-directional fiber like PM or FF.
I had a great conversation with a technician this week, and he used the analog of an Oreo Cookie--if you don't want the cookie to break, reinforce the outer chocolate wafer (which you can do with eFiber). Reinforcing the palate is like reinforcing the creme filling--the cookie will still break, but the reinforced creme filling will hold the cookie together
As the manufacturer of Perma Mesh, and somebody who has personally tested and worked with Fiber Force when it was originally brought out by the parent French company at IDS, here is how I view the materials:
Category..... Perma Mesh ...... Fiber Force
Manufactured ..... USA ...... France
Material ..... e-glass ...... e-glass
Impregnation ..... PMMA ...... PMMA (light cure)
"Pre-Wet" ..... No ...... Yes
Curing ..... Dual ...... Light
Palatal Thickness Requirement..... No ...... Yes
Work with composite? ..... Yes ...... No
Invisible ..... Yes ...... Not sure
Can be ground/polished ..... Yes ...... No
Can be placed on surface ..... Yes ...... No
Special tools needed? ..... NO ...... Yes
Steps before using ..... Pre-wet ...... Blockout
Place ...... Place
Cure ...... Cure
I am not sure if FF is invisible. I know the excellent advertisements say it is, but the cases I have seen firsthand do require a thick palate to mask the material. Please correct me if I'm wrong.
I think both materials are huge jumps forward compared to the previous generation of Fiber materials and you will have success using either in the correct indication.