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Prosthodontics & Occlusion · single question

In the picture of a dental surveyor, what is the PRIMARY purpose of surveying a dental cast?

  1. Determine the path of insertion for a removable partial denture
  2. Measure the depth of undercuts for RPD clasp design
  3. Identify the most parallel tooth surfaces
  4. All of the above — surveying achieves all these goals
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Correct answer: D. All of the above — surveying achieves all these goals

A dental surveyor is used to evaluate and analyze the contours of a dental cast. Its purposes include: (1) determining the path of insertion and removal for an RPD, (2) locating and measuring undercut areas for clasp retention, (3) identifying guide planes, (4) contouring wax patterns, and (5) planning surveyed crown restorations. Measuring undercuts is one key function, but the surveyor serves multiple interrelated purposes — all of the above is the most complete answer.

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