Ketac™ Cem Radiopaque Permanent Glass Ionomer Luting Cement Powder Refill 3M™ ESPE™ 37211
|3M Oral Care
Features & Benefits:
- Ketac™ Cem Radiopaque Permanent Glass Ionomer Luting Cement offers chemical bond to enamel and dentin.
- Releases fluoride.
- High biocompatibility.
- Ketac™ Cem Radiopaque Permanent Glass Ionomer Luting Cement is extremely low film thickness optimizes fit and marginal integrity.
- Ketac™ Cem Radiopaque Permanent Glass Ionomer Luting Cement offers fluoride release, optimal fit and marginal integrity.
- Ketac™ Cem Radiopaque Permanent Glass Ionomer Luting Cement, Refill includes a 33g bottle of powder.
- Cementing of crowns and bridges, inlays, posts and screws, and orthodontic bands.
- Cavity lining.
- Ketac™ Cem was inadvertently mixed with water. Do I have to remove a restoration that was fixed despite this mishap?
The liquid of Ketac Cem contains water and tartaric acid, and benzoic acid as a conservation agent. The role of tartaric acid is to provide for optimal setting properties and increase the stability by 10%. However, if the restoration has been fixed in the proper place, the setting properties are no longer of concern. A 10% decrease in stability can be tolerated provided there are no other complications. However, as a matter of principle Ketac Cem should not be prepared by mixing with water.
- Is it possible or advisable to fix full-ceramic crowns with Ketac Cem?
This answer depends on the ceramic material used.
Available materials: Glass ceramic, Zirconium oxide or aluminum oxide ceramic.
Due to the low inherent stability of glass ceramics, the teeth and restorations made from these materials need to be stabilized by formation of an adhesive bond. This bond cannot be generated with Ketac Cem or other glass ionomer cements, but requires the use of a composite luting material and application of the total-etch technique. Moreover, it is advisable to coat the inside of the ceramic crown according to the Rocatec procedure and follow this step up by silanizing with 3M™ ESPE™ Sil™. Fluoric acid etching and subsequent silanization is a suitable alternative. Both procedures provide for optimal bonding between the tooth structure, the luting material, and the indirect restoration. The inherent strength of the so-called high-strength ceramic materials, such as aluminum oxide and zirconium oxide, is sufficient for conventional cementation, i.e. Ketac Cem can be used with this type of material. Please check the manufacturer recommendation to find out whether the ceramic material in question is approved for this type of cementation by the manufacturer. Initial etching with fluoric acid is not possible in this application. For optimal conditioning of the indirect restoration, use the Rocatec silicatization procedure with ensuing silanization.