Australian Dental Council (ADC) Practice Test

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Question: 1 / 1390

What impact does oil or water have on the quality of treatment casts?

Enhances the durability

Improves accuracy

Decreases the quality

The presence of oil or water on treatment casts detrimentally affects the interfaces between various materials used in the dental casting process. When oil or water contaminates the casting surface, it can create barriers that interfere with proper adhesion or bonding of materials, leading to defects such as bubbles, incomplete edges, or overall weak structures. This contamination can compromise the physical and mechanical properties of the cast, hence decreasing the overall quality of the treatment casts.

While there are various methods and materials involved in creating these casts, ensuring a clean and dry surface is essential to avoid any reduction in structural integrity or dimensional accuracy. The hindrance caused by oil or water can ultimately impact the final outcome of dental procedures that rely on high-quality impressions and casts, making this option the most aligned with the negative influence of such contaminants.

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