Indications, clinical and laboratory stages of manufacturing of swaged-soldered dental bridges - PowerPoint PPT Presentation

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Indications, clinical and laboratory stages of manufacturing of swaged-soldered dental bridges

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Indications, clinical and laboratory stages of manufacturing of swaged-soldered dental bridges

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  1. Indications, clinical and laboratory stages of manufacturing of swaged-soldered dental bridges

  2. Clinical & laboratorial stages of swaged-soldered bridges making Clinical stages Laboratorial stages І. Patient examination. Diagnostics. Making of treatment plan. Preparation of abutment teeth. Taking impressions. І. Making of supporting crowns (swaging). ІІ. Fitting & trying on of supporting crowns. Taking of occlusal impression. ІІ. Modeling of intermediate (pontic) part of dental bridge. Molding of intermediate (pontic) part of dental bridge. Soldering of dental bridge parts. ІІІ. Fitting & trying ondental bridge framework. Choosing of veneer (facing) color. ІІІ. Modeling ofveneers (facing) with dental wax. Replacement of dental wax to acrylic resin. Polishing of dental bridge. ІV. Dental bridgefixation.

  3. Preparation of abutment teeth for swaged artificial crowns.

  4. Preparation of incisal edge

  5. Preparation of vestibular & oral surfaces


  6. Stages of teeth preparation

  7. Stages of teeth preparation

  8. Stages of teeth preparation

  9. Preparation of occlusal surface

  10. Separation

  11. Marking of clinical neck with ink pencil.

  12. Modeling of anatomical shape of abutment crown.

  13. Sizes of modeled crown are smaller on - 0,25-0,3мм

  14. Thickness of metal of swaged crown is- 0,25-0,3мм

  15. Cutting of part of dental model with abutment tooth.

  16. Marking of gypsum stamp.

  17. Methods of gypsum stamp marking

  18. Making copy of gypsum stamp in low temperature molding alloy

  19. Molding of alloy stamp with MELOT

  20. For a lot of crowns gypsum blocks are used.

  21. Calibration of standard shells with Samson devise

  22. Previous swaging

  23. Parker devise for external swaging(pressing) of artificial crowns

  24. Press for external swaging(pressing) of artificial crowns

  25. Stage of fitting & trying on of supporting crowns. б а а – checking of marginal adaptation with dental probe; б- visual examination with dental mirror.

  26. Occlusal impression taking with gypsum. Applying gypsum Fixing of central occlusion Removing of occlusal impression Estimation of impression

  27. Gypsum models are fixed to occludator than modeling of intermediate (pontic) part of dental bridge.

  28. Fitting of dental bridge framework.

  29. Determination of shade of veneer (facing)

  30. Final fitting of swaged-soldered bridge. Dental bridge after fixation.

  31. Clinical & laboratorial stages of all metalic casted (molded) bridges making

  32. Form is compromised in the lesser visible half. Fig. 3-37.When replacing a posterior tooth (A), dupli­cate the dimension of the more visible mesial half of the ad­jacent tooth. Narrow (B) and wide (C) pontic spaces. (Redrawnfrom Blancheri RL: Rev Asoc Dent Mex 8:103, 1950.)

  33. Fig. 3-38. A, Eight-unit FPD with porcelain facings. B and C, This three-unit posterior FPD has been fabricated by postceramic soldering of a metal-ceramic facing to conventional gold. D, Metal-ceramic FPD with a modified ridge lap pontic (canine) appears to emerge from the gingiva.

  34. Waxing armamentarium Fig. 3-39

  35. Prefabricated wax pontics. Fig. 3-40

  36. Fig. 3-41. Luting the pontic to the retainers.

  37. Complete contour wax patterns. Fig. 3-42.

  38. Fig. 3-42. Cut-back procedure for a three-unit anterior FPD. A, Delineating the porcelain-metal junction. B, The central incisor has already been cut back, and the pontic has been troughed. The canine is still at anatomic contour. C, A ribbon saw is used to section the connector.

  39. Fig. 3-43. Metal substructure ready for airborne particle abrasion and oxidation.

  40. Fig. 3-44. Failure of unsupported gingival porcelain.

  41. Fig. 3-45. Armamentarium for porcelain application.

  42. Fig. 3-46. Porcelain application. A, Substructure ready for opaquing. B, Opaque application.C, Body porcelain application. D, A piece of moistened tissue paper (arrow) on the edentulous ridge.E, The porcelain after the first firing.

  43. Fig. 3-47.Metal-ceramic pontic replacing a lateralincisor.

  44. Fig. 3-48. All-metal, three-unit FPDs.