DANB General Chairside Practice Test

When adjusting a crown after cementation, the dentist most likely would use which material?

1. Composite resin

2. Stone

3. Glass ionomer

4. Resin cement

The correct answer is: Stone

When adjusting a crown after cementation, dentists typically use a stone material, such as a dental stone or plaster, because it provides a solid and stable surface to evaluate the occlusion and fit of the crown. The purpose of using stone is to make precise adjustments without damaging the crown or the surrounding tooth structure. This allows the dentist to accurately assess how the crown interacts with the opposing teeth and make necessary adjustments to achieve an optimal bite and fit. Other materials like composite resin or glass ionomer are more commonly used for other purposes, such as filling cavities or as temporary restoratives, rather than for the adjustment of the crown after it has been cemented. Resin cement serves as a bonding agent during the crown placement, but is not used for adjustments after the cementation process. Therefore, stone stands out as the most appropriate material in this context for ensuring proper adjustment and achieving the desired restoration outcome.