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Uploaded on Jan 19, 2009
UltraSeal XT plus is a light-cured, radiopaque, fluoride-releasing composite sealant. Because it is a 58% filled resin UltraSeal XT plus is stronger and more wear-resistant, and has less polymerization shrinkage than competitive products. The spiral brush action of the tip causes shear thinning of the filled, thixotropic UltraSeal XT plus, thus dropping its viscosity as it is placed. Resin firms when shear thinning ceases (placement complete) and helps prevent resin from running before it can be light cured.