Violation
Composite resin is contraindicated as a posterior restorative material in cases of: 1. Allergy to benzoyl peroxide. 2. Bruxism. 3. Lack of enamel at the gingival cavo-surface margin. 4. Inability to maintain a dry operating field.
All of the above.
(1) (2) (3)
(1) and (3)
(2) and (4)
(4) only