<prompt> Type IIa GIC is used for:Luting crowns, bridges and orthodontic bracketsEsthetic restorative cementsReinforced restorative cementsLining cements  <response>: Type I: Luting crowns, bridges, and orthodontic brackets.Type IIa: Esthetic restorative cements.Type IIb: Reinforced restorative cements.Type III: Lining cements, base.Ref: Phillips Science of Dental Materials ed 12 pg 320 