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Compound is the impression material of choice because of its ease of use, its accuracy, stability, and tolerance by the child. Many dentists simply send the compound impression to the laboratory with no worry about dimensional changes in the impression. The bands can be placed nicely and easily in the impression. Usually, a highly identifiable ring can be seen in the impression material around the teeth where the occlusal aspect of the band has registered in the compound, and the bands are placed in the indentations made by the bands from the mouth.
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