National Dental Examining Board of Canada (NDEB) Practice Exam

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Master your National Dental Examining Board of Canada (NDEB) exams with our comprehensive practice guide. Achieve excellence in your dental certification with expertly crafted questions and detailed explanations.

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How is primary retention of Class II gold inlay achieved?

Using a bonding agent
By adding an occlusal dovetail, increasing parallelism of walls, and lengthening axial walls
By chemical adhesion
Application of silane coupling agents

The correct answer is: By adding an occlusal dovetail, increasing parallelism of walls, and lengthening axial walls

Primary retention of Class II gold inlays is typically achieved by utilizing a combination of techniques such as adding an occlusal dovetail, increasing parallelism of walls, and lengthening axial walls. This is because these methods allow for a better fit of the inlay, which results in improved retention and stability. Options A, C, and D may also play a role in the retention of the inlay, but they are not the primary methods used. Bonding agents, chemical adhesion, and silane coupling agents may aid in retention, but they are not the main techniques used in achieving primary retention for class II gold inlays.