Check the listing for details. Incisione dentale dell'acido fosforico 37% Silica Blue Gel per adesivo & resina. Condition: New. Listed at 7.30 USD. Dental Etchant Gel 37% Phosphoric Acid Etching Silica Gel 5ml + 5 tips FEATURE：1.Enamel and dentin etching.2.Apply special technology to obtain ideal density of the gel.3.Gel in blue color for better visual management.Indication: It is used for acid etching of tooth enamel and dentin before dental repair. Operation Procedure：1. Remove surface dirt, rinse the prepared cavities, and blow dry.2. Apply the etching agent from the tooth enamel to the entire surface of the repair, and etch for 20-40 seconds. The acid etching time of deciduous teeth and dental fluorosis can be extended appropriately according to the actual situation.3. Rinse with clean water after acid etching, and suck out in time.4. Use adhesives and resins for bonding repair. FDA Statement：The sale of this item may be subject to regulation by the U.S. Food and Drug Administration and state and local regulatry agencies.If so, you can bid on this item only if you are an authorized purchaser. If the item is subject to FDA regulation, I will verify your status as an authorized purchaser of this item before shipping of the item.Seller's name: 2013eshop01 City: Shenzhen State: Gunagdong.ChinaTelephone number:0755-83162399