Direct restorations — definition?
Materials placed directly into a cavity in one visit.
Steps in direct restorations?
Preparation, placement, finishing, polishing.
Materials used in direct restorations?
Composite, amalgam, glass ionomer, hybrid materials.
Polymerization process?
Monomers convert into a polymer network.
Monomers in composites?
TEGDMA, EGDMA, HEMA.
Composite shrinkage causes?
Volume reduction during polymerization.
Shrinkage stress?
Internal stress from volumetric reduction.
Factors affecting shrinkage?
Monomer size, filler content, composition.
Adhesive systems — role?
Bond restorative to tooth tissue.
Bonding procedures?
Etching, priming, adhesive application, curing.
Amalgam composition?
Mercury, silver, tin, copper, zinc.
Amalgam reactions?
Corrosion and formation of reaction products.
Amalgam disadvantages?
Aesthetics, no chemical bond, mercury concerns.
Glass ionomer cement composition?
Vulcanized glass, polyacrylic acid.
Glass ionomer properties?
Fluoride release, chemical bond, biocompatibility.
Restoration procedures?
Preparation, placement, finishing, polishing.
Light curing process?
Blue light activates photoinitiators.
Curing wavelength?
460-480 nm.
Finishing importance?
Refines contour, smooths surface, improves esthetics.
Polishing tools?
Discs, polijstwielen, rubber cups.
Answer 10 questions on Fundamentals of Direct Dental Restorations.
1. What is the main role of direct restorations in dental treatment?
2. When does the polymerization of composite materials typically occur in the restorative procedure?
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