Type IIa GIC is used for:: (A) Luting crowns, bridges and orthodontic brackets, (B) Esthetic restorative cements, (C) Reinforced restorative cements, (D) Lining cements
Answer is B. Type I: Luting crowns, bridges, and orthodontic brackets.
Type IIa: Esthetic restorative cements.
Type IIb: Reinforced restorative cements.
Type III: Lining cements, base.
Ref: Phillip’s Science of Dental Materials ed 12 pg 320