Etching a hybrid glass ionomer-composite
a. is necessary for composite resin bonding
b. is not necessary for composite resin bonding
c. is necessary for adding a glass ionomer cement for repair
d. is not necessary for adding a glass ionomer cement for repair
e. a 3-5 second etch with 10% phosphoric acid is recommended
a. is necessary for composite resin bonding
b. is not necessary for composite resin bonding
c. is necessary for adding a glass ionomer cement for repair
d. is not necessary for adding a glass ionomer cement for repair
e. a 3-5 second etch with 10% phosphoric acid is recommended