Dental Surveyor Function — NDEB AFK MCQ
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Correct answer: D — Dental surveyor (Ney surveyor)
The dental surveyor (Ney surveyor) is used to analyse the diagnostic cast and determine the optimal path of insertion for an RPD. It identifies the survey line (height of contour) on abutment teeth, locates retentive undercuts (for clasp placement), detects interference to the path of insertion, and determines the need for guide planes. The surveyor uses a vertical analyzing rod, carbon marker, and undercut gauges (0.25, 0.50, 0.75 mm) to plan the prosthesis design.
Reference: Carr – McCracken's Removable Partial Prosthodontics, 13th ed., 2015