الفهرس 
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Abstract
Amalgam is still the most inexpensive , durable and most extensively used restorative material in dentistry forrepair of decayed primary molars. However, it does not adhere to tooth structure, thus leading to microleakage and secondary to tooth structure was reported making it even more useful and important posterior restorative material than it has been in the past.
The aim of this study was to evaluate the effect of long term immersion in artificial salvia and thermocycling on shear bond strength and mocroleakage of class II bonded amalgam restoration
The material used were :
1- Amalgambond adhesive system as an adhesive bonding agent.
2-Admixed high copper amalgam (ANNA 2000) as restorative material .