You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Which of the following is the strongest, densest and hardest of pure gold restorative material? and explain in detail?
Pure cohesive gold foil restorations will be the strongest, the densest, and the hardest of all types of direct gold restorations. This is due to the greater cohesion between the ingredient leaves (foil) in the completed cohesive gold foil restoration as compared to the ingredient particles of the precipitated gold restorations. Cohesive gold foil restorations will have fewer voids, fewer foreign bodies, and a lesser number of component ingredients (that must be joined together) than restorations made of precipitated gold.
Ref: Marzouk .page 399