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Dental
An 8 year old male patient complains of food lodgement with a history of previous restoration of the same tooth. Intra-oral examination reveals fractured Class II amalgam restoration with mandibular molar. Which of the following is not responsible for the fracture of restoration?
Poor cavity design resulting in an insufficient bulk of material across the isthmus can lead to failure of even a high-strength alloy
Avoiding moisture contamination of amalgam
Non-compliance of the child with instructions to refrain from biting down hard on the freshly placed amalgam
Thin edges of restoration
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