Recent CommentsAir Bubbles in Flowable Resin Composites?
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I have found air bubbles in every flowable resin composite that I have tried. Whenever I call the manufacturer or the distributor, they assure me that no one else has complained about this. Apparently I am the only one that has this problem. This costs me a great deal of chair time. I drill out the bubbles and inject resin to cover the defect. I am really badly in the need of a flowable resin-composite that is not filled with air bubbles. Does anyone else out there have this problem? Are there any flowable resin composites on the market that you recommend?
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5 Responses to “ Air Bubbles in Flowable Resin Composites? ”
According to Dr Ray Bertolotti, this is caused by the technique you use to press the flowable into the needle tip. If you hold the syringe vertically while you slowly express material into the tip you trap less air. If you hold it horizontally, more air is trapped in the tip.
Bubble in composite resin is trouble for treatment.
The manufacturer has to remove the bubble during the filling of paste in the syringe. This process is de-aeroration (removal of bubble). As the resin is chemical, the bubble is made during the mixing. But the removal of bubble in the resin is production technique, I think.
Bisco, Inc.’s flowable resin is recommendable.
Good luck
Try expressing any flowable resin composite on a clear matrix band, apply another matrix band on top of the resin to obtain an even, thin layer of resin. Then light cure. Observe the air bubbles before and after light curing. Watch the air bubbles grow caused by the polymerization contraction.
Compare different flowable composite resins.
check the list of flowables with CRA. Notice how 90% of the flowable DO NOT FLOW. I use PermaFlow from ultradent. Itwas rated the most flowable from both CRA and REALITY. Low viscosity resins are less likely to trap air than low visocity composties. Plus PemaFlo has more filler than other flowables.
We have found in our office, by placing the flowable resin vertical with tip up, has reduced the amount of bubbles
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