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DENTMAT RESTO

QuestionAnswer
high solubility to oral fluids, easy to discolor, and increases in opacity during staining and dehydration. High percentage of fluoride Silicates
improved resistance to solubility and no problem with dehydration, although staining remained a problem. problems with recurrent decay, wear, percolation Acrylic Polymers / Unfilled resins
Has fluoride content primarily indicated for restoration of cervically eroded areas Ionomer restoratives
increase material strength, prevent dimensional change FILLER
the materials will harden due to POLYMERIZATION
- decrease of materials volume as it harden SHRINKAGE
- pumping action of alternately imbibing and exuding fluids PERCOLATION
activator of P-toluene sulfinic acid P-toluene sulfinic acid
METHODS OF PACKING Dough stage, then use matrix strip, it is held immobile until polymerization is completed. Pressure / Bulk-pack / Compression Technique
METHODS OF PACKING Placing of the material layer by layer using sable hair brush Non-pressure / Bead / Brush Technique
METHODS OF PACKING Needs flowy consistency, then apply directly to prepared teeth, with also the use of mylar matrix (but no pressure) WORST PROCEDURE Flow Technique
prevents premature contact with moisture & shrinkage of resin, and for lubricant SIlicone grease or Cocoa butter
Dimethacrylate polymers containing inorganic reinforcing agents filled resin
30-50% phosphoric acid (H3PO4) to improve the retention of composite to the walls of the cavity decalcify enamel & dentin to make their surfaces rough & porous ACID ETCHANT
liquid composite; thin consistency to flow freely into the etched surface Bonding agent
added to produce a darker shade Tint
added to lighten the shade Opaquer
allows a shiny surface finish of the restoration; adds luster to the restoration Glaze system
→ most common treatment To properly bind resin matrix and fillers. To act as a stress absorber between filler and resin matrix interface. Vinyl silane
HYBRID OR MICROFILLED contains colloidal silica highly polishable; but prone to fracture, color stable to UV light but not to tobacco stains for Class 3 & 5 MICROFILLED / MICROFINE COMPOSITES
combination of small & microfillers size so a smoother finish can be obtained while having more strength than microfilled composites universal composites HYBRID / BLENDED COMPOSITES
Polishing materials for composites: Removal of gross excesses that are not near enamel margins 18-12 fluted carbide burs
Polishing materials for composites: finishing of accessible areas Abrasive disks
Polishing materials for composites: finishing of inaccessible areas White stones of suitable shape
Polishing materials for composites: final polishing Ultrafine diamond points and diamond pastes
Softest restorative material Unfilled resin/ acrylic polymer
the two most common organic matrix, added to control the consistency of composite paste BIS-GMA (bisphenol glycidyl methacrylate UDMA (Urethane dimethacrylate)
provide a good bond between the inorganic fillers and the polymer matrix Coupling agents
Created by: nixieee
 

 



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