RPD1.ppt
- 2. STEPS OF CONSTRUCTION 1. EXAMINATION 2. PRIMARY IMPRESSION 3. POURING PRIMARY CAST 4. PRIMARY SURVEYING 5. MOUTH PREPARATION 6. FINAL IMPRESSION 7. POURING MASTER CAST
- 3. 8. SURVEYING THE MASTER CAST 9. DRAW THE DESIGN 10. PREPARING MASTER CAST FOR DUPLICATION 11. DUPLICATION 12. POURING REFRACTORY CAST 13. DRAWING DESIGN 14. MAKE WAX PATTERN AND SPRUE
- 4. 15. INVESTING AND CASTING 16. FINISHING AND POLISHING 17. METAL FRAMEWORK TRYIN 18. BITE REGISTRATION 19. ACRYLIC TEETH TRYIN 20. PROCESSING OF ACRYLIC 21. FINISHING AND POLISHING.
- 5. Surveyor The Horizontal Base Vertical Upright Column Cross Arm with Spindle Housing The Vertical Spindle With Tool Holder The Surveyor Table Tool Holder
- 6. SURVEY LINE UNDERCUT AREA NON UNDECUT AREA HEIGHT OF CONTOUR Carbon Marker
- 8. PREPARATION OF MASTER CAST Wax Trimmer
- 9. Waxing the master cast: 1- Blocking-out the undesirable undercuts: A- Paralleled blockout: Proximal tooth surfaces to be used as guiding planes Beneath all minor connectors Tissue undercuts to be crossed by rigid connectors Tissue undercuts to be crossed by origin of bar clasps Deep interproximal spaces t
- 10. B- Shaped blackout Ledges for location of reciprocal clasp Ledges for location of retentive clasp arms
- 11. C- Arbitrary blockout (Smoothed arbitrarily with wax spatula All gingival crevices Gross tissue undercuts Labial and buccal tooth and tissue undercuts not in- volved in denture design
- 12. 2-Relief Beneath lingual bar Areas in which major connectors will contact, thin tissue Beneath framework extension onto ridge areas for attachment of resin bases 3-Tissue Stops Two small squares of 2 mm, usually an anterior and posterior, of relief wax is removed at the distal end the edentulous ridge
- 13. 4-Formation of internal finishing lines are carved in the relief wax covering the edentulous ridge at the metal resin junction. This line is trimmed with blade held at 900 to the cast surface in order to produce a sharp junction having a uniform depth of at least 1mm.
- 16. Duplication of the master cast
- 17. REFRACTORY CAST
- 19. PENCIL OUTLINE ON CAST
- 20. WAX FRAMEWORK
- 22. FILLING OF BEADED AREAS
- 23. LAYING SHEET OF WAX
- 25. SHEET CUT TO SHAPE
- 29. POSITION MESHWORK IN PLACE
- 31. FINISH LINE
- 32. FINISH LINE
- 33. LEDGE IN REF. CAST
- 34. ADAPTATION OF WAX IN LEDGE
- 35. RETENTIVE ARM IN LEDGE
- 36. RECOPRICAL ARM IN PLACE
- 39. CLASP UNIT ATTACHED TO FRAMEWORK
- 41. OCCLUSAL REST CONNECTED TO MINOR CONNECTOR
- 44. WAX PATTERN
- 47. SECTIONAL VIEW OF WAXING, INVESTING AND SPRUE
- 48. CASTING AND METAL INGOTS
- 50. FINISHED AND POLISHED R.P.D
- 53. METAL FRAME WORK
- 54. FINISHED DENTURE