Smile MicroHybrid Light Cure Restorative Composite for Anterior and Posterior Use
The Intention of use:
High aesthetic restorations filling teeth cavities
Crystalline and Fumed Silicon dioxide
Instructions for use:
Since cleaning and etching may cause distinct changes in the natural color of the tooth the selection of the appropriate color should be done prior to cleaning and etching the tooth
Perform prophylaxis upon surface enamel to be etched, using water and pumice. You should use a prophylactic paste that contains no acid or fluorides. The soft portions of dentine and all decay should be removed. Isolate the tooth with a rubber dam or a roll of cotton. Put a protective base of zinc phosphate or calcium hydroxide.
Prepare the cavity to remove caries. If liners are required composite filling material is compatible with calcium hydroxide and zinc phosphate cement. Etch the enamel surface in the applied layer of bonding prior to the application of the composite.
Etching tooth surface enamel:
Apply etchant over the surface enamel of the tooth using a cotton pellet or brush. Allow remaining for 20-30 seconds. On primary tooth high in fluoride, 90-120 seconds. If a glass ionomer base is used to not etch for more than 20-30 seconds. A flush area completely for 20 seconds. Do not allow the patient to rinse the mouth or permit saliva to touch the etched enamel surface.
Air dry completely with an oil/ moisture-free air source. The surface of the tooth should have a dull, white, frosted appearance. If not, repeat the process allowing etchant to remain on the tooth for an additional 20-30 seconds.
Apply a thin uniform coating of bonding resin immediately onto the etched tooth surface. Thin the resin coating on the tooth with a gentle stream of oil/moisture-free air. Avoid contact with gingival or other soft tissue.
Withdraw a suitable quantity of composite; apply the composite in layers of no more than 2mm thick. To thicken and cure the composite exposure to a visible light source, continue this procedure until desired thickness is obtained, ensure that each layer is cured separately, and expose the total restoration to a further 60 seconds of light. High-intensity light will require less time to cure the material so you should test to find the exposure time suitable for your type of light.
A smooth surface can be obtained by using strip aluminum oxide paper and disc ranging from coarse to super fine. You can polish using the conventional method for acrylics.
The etching solution contains a 37% phosphoric acid solution, which can be harmful to skin and eyes. In case of contact, rinse the eyes or skin immediately in plenty of water and seek medical assistance for appropriate treatment.