NJXDG Exam with Questions and Answers

NJXDG Exam with Questions and Answers Glass ionomer advantages ANSWER - The powder is an acid-soluble calcium. The slow release of fluoride from this powder aids in inhibiting recurrent decay. - The cement causes less trauma or shock to the pulp than is caused by many other types of cement. - The cement has low solubility in the mouth. - The cement adheres to a slightly moist tooth surface. - The cement has a very thin film thickness, which is excellent for ease of seating a casting. - Glass ionomer cements can be formulated for use as a dentin substitute or base material. Chemical makeup of glass ionomer ANSWER Liquid: polyacrylic acid copolymer and water Powder: silica, alumina, aluminum fluoride, calcium fluoride, sodium fluoride, aluminum phosphate Application of glass ionomer cement ANSWER Available as light cure or self cure. Supplied in bottles of powder and liquid, which can be mixed manually on a paper pad or a cool, dry glass slab. Use of the glass slab increases the working time of the cement. Also supplied in premeasured capsules, which are triturated and expressed through a dispenser. Examples of commercial glass ionomer cement ANSWER - Aspa - Ionomer - Fuji