HF2: Types of Sealants

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material of giomer sealants

combination product of glass ionomer and resin polymer materials

what does the slow-releasing fluoride in glass ionomer do

enhances caries resistance and remineralization

research indicates that ________ sealants are twice as wear resistant as _________ sealants

filled; glass ionomer

resin based - filled sealants: what does the filler do

increases bond strength, abrasion resistance and wear

resin based - filled sealants: viscosity of the sealant

is increased and flow into the depth of a fissure varies

which type is more effective in caries reduction and why

resin-based sealants due to their superior retention

resin based sealants

-autopolymerized - chemical or self cured -photopolymerized - light cured -filled -unfilled

glass ionomer sealants

-fluoride release -used in restorative dentistry as liners and bases -directly fuses with enamel -does not require acid etching -is not moisture sensitive

resin based - filled sealants: fillers

-glass -ceramic -quartz particles

classification of sealants

-glass ionomer -giomer -resin based

glass ionomer: research indicates

-it may interfere with development of strep mutans on its surface -it lacks strength -shows high rate of occlusal wear -the retention rate is not as good as resin-based sealant materials

resin based - unfilled sealants

-less resistant to wear -indicated when potential occlusal adjustments are expected, and low speed hand pieces are not available

nanotechnology

-look for the introduction of new sealant products that are being researched which may demonstrate an improvement in hardness and ease of application -latest innovation is the use of nanotechnology in dental composites -nanomaterials-nonofillers and nanohybrids are added to the composite material for strength and durability

giomer sealants

-new -fluoride-releasing -alkaline-releasing to buffer lactic acid -BPA-free -light-cured -utilizes a self-etching primer which eliminates a separate etching step


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