This high-yield revision note on Complete Denture Impressions & Jaw Relations: Must-Know Steps covers everything examiners typically test under Prosthodontics — structured as quick-reference tables, clinical correlations, mnemonics and previous-year-style high-yield points. It's built for last-mile revision before NEET MDS, INI-CET MDS and INBDE, so you can scan it in minutes instead of re-reading a whole textbook chapter.
| Step | Purpose |
|---|---|
| Primary impression | Taken with alginate in a stock tray; records the anatomic form of the ridges, used to fabricate a custom/special tray |
| Secondary (final) impression | Made with a custom tray following border molding, then a light-body wash material (ZOE or PVS); records the FUNCTIONAL/physiologic form of the tissues for maximum retention and support |
| Border molding | Manipulation of the tissues bordering the denture-bearing area to record the functional depth and width of the vestibular sulcus - classically done with green stick compound |
| Jaw relation records | Vertical Dimension of Occlusion (VDO) is derived from the physiologic Vertical Dimension of Rest (VDR) minus the freeway/interocclusal rest space (~2-4mm); Centric Relation (CR) is the most posterior, superior, and unstrained condyle-disc-fossa position, reproducible regardless of tooth contact |
| Facebow transfer | Records the relationship of the maxillary cast to the hinge axis/TMJ, and transfers this relationship onto an articulator |
| Try-in stage | Wax rims → denture teeth setup → clinical try-in to verify esthetics, phonetics, VDO, and centric relation before final processing |
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