Answer:
Composite resins are less brittle than ceramics but have greater wear at the edges so may not last as long as a bonded ceramic restoration. Composite resins are used when restoring teeth with minimal biting forces and can also be used as intermediate restorations when planning full mouth restorative cases.
Explanation:
-Deliver 1 ventilation every 3 to 5 seconds
-Check the pulse and breathing about every 2 minutes