INBDE (Integrated National Board Dental Examination) Practice Exam

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Mechanical retention for porcelain teeth in dentures for posterior teeth is achieved by:

  1. screws

  2. pins

  3. glue

  4. diatorics

The correct answer is: diatorics

Mechanical retention for porcelain teeth in dentures for posterior teeth is achieved by diatorics. Diatorics are metal inserts embedded in the denture base material and provide a means of mechanical retention. They help to stabilize the porcelain teeth, especially in areas where there is more force during chewing. Diatorics increase the surface area of contact between the denture base and the porcelain tooth, ensuring a more secure fit. Options A, B, and C (screws, pins, glue) are not typically used for achieving mechanical retention for porcelain teeth in dentures for posterior teeth. Screws and pins may be used for other types of dental prostheses, but they are not commonly used in dentures for retaining porcelain teeth. Glue is not a suitable option for achieving mechanical retention in dentures as it does not provide a long-lasting or reliable solution for securing porcelain teeth.