Relining And Rebasing Flashcards
How do you reline or rebase?
Check for occlusal deflections
Adjust the borders of the denture to correct any over or under extension
Remove all undercuts in the acrylic in the impression surface
Silicone or ZnO eugenol impression
Patient must bite together in ICP
When do you reline or debase?
When you are certain that the fit surface of the denture if the cause of the problem
When are soft reclines needed?
Tissue conditioning before working impression
Functional impression
Temp reline of immediate dentures or following OS
Treating denture stomatitis where lack of denture fit is the curse of the problem
Neutrals zone impression
Diagnostic aid
What materials can you use as a temporary reline?
Viscogel
Coe comport
Coe soft
What is in viscogel Coe comport and Coe soft?
Viso: PEMA (poly methyl methacrylate )
Ethyl alcohol
Dibutyl phthalate
Coe comfort: PEMA, ethyl alcohol, Dibutyl palate, Azim oxide undecyletnate
Coe soft: PEMA, Di n butyl phaltgate, Benzyle salicylate, ethyl alcohol
How should the patients care for the soft relines?
Do not brush them
Avoid peroxide cleaners since damage the surface
What are the indications for long terms relines?
Atrophic mucosa Knife edge ridge Superficial mental nerve Extensive boney prominence Defects congenital Aquired Parafunction
What material can be used for long term re lines?
Molloplast B
Coe Super a soft
What is in Molloplast B?
Poly dimethyl siloxane, acroloxyalcylsilane, heat and Benzoyl peroxide
What is Coe super soft?
Long chain acrycl resin polymers and monomer
How are the long term relines done?
This are done in the lab
Take impression with light bodies silicone
Remove any undercuts
Border mould
What are chair side relines done with?
Cold cure acrylic resin eg Tokyama
