What is the recommended treatment for dentin before applying glass ionomer cement (GIC)?

The recommended treatment for dentin before applying glass ionomer cement (GIC) is to use a conditioner. Conditioning in this context typically involves using a specific solution designed to prepare the dentin surface, enhancing the bond between the tooth structure and the glass ionomer cement. This conditioning usually helps remove any smear layer, which can interfere with the adherence of the GIC. It also helps to make the bonding surface more bioactive, allowing the cement to better incorporate with the dentin and promote its optimal properties.

The other choices do not adequately prepare the dentin for the application of GIC in the same way. For example, pumice and water may clean the tooth surface but will not condition it effectively for bonding. Acid etching is more commonly associated with bonding to enamel rather than dentin, as dentin requires a more delicate approach due to its organic composition and sensitivity. A saline rinse is typically not utilized for preparing dentin; rather, it would serve to rinse off debris but would not enhance the bond with the cement. Thus, using a conditioner is essential for achieving the best results when working with glass ionomer materials in dental procedures.