Fixed prosthodontics lesson 6
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Fixed prosthodontics lesson 6






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Fixed prosthodontics lesson 6 Fixed prosthodontics lesson 6 Presentation Transcript

  • INTRODUCTION& TERMINOLOGY Bridge (FPD) Part I: General Classifications considerations
  •  According to the site, FPD is classified as: - Anterior bridge : * bilateral * unilateral - Posterior bridge - Complex bridge
  •  Anterior FPD: It extends only between the anterior teeth. and it could be: - Unilateral (two or three teeth bridge): doesnt cross the midline. - Bilateral (three or four teeth bridge): involves teeth on both sides.
  •  Posterior FPD: It extends only between the posterior teeth. Complex FPD: It extends at one of its terminals beyond the canine.
  •  According to retention, FPD is classified as: - Simple bridge: * Fixed- Fixed * Fixed- Supported * Cantilever * Spring cantilever - Compound bridge
  •  Simple bridge: it is one single bridge, and it may be: 1- Fixed- Fixed bridge: which is fixed at both ends to the abutment teeth. 2- Fixed- Supported: which is connected to one of the terminal abutment teeth by a non-rigid connector to allow some individual movements of the pontic.
  •  Simple bridge: 3- Cantilever bridge: which is a free-end bridge, where the pontic is fixed to and derives its support from one or double retainers at one end only and the other end is unsupported. 4- Spring cantilever bridge: which is a cantilever bridge, where the pontic is at the end of slightly resilient curved arm deriving its support from an abutment tooth remote from edentulous space.
  •  Compound bridge: it is a combination type of bridge, contains more than one type of simple bridge.
  •  According to material, FPD is classified as: - Metallic: * precious alloy * semi precious alloy * non precious alloy - Combined: * metallic with labial or buccal veneers * metallic with full veneer * non metallic with metal reinforcement or framework (reinforced bridge). - Non metallic: *Reinforced bridge: which has a metal reinforced * all resin, framework embedded within the porcelain or acrylic resin and remained as a permanent part of the bridge * all ceramic structure.
  •  According to the length of span, it is classified as: - short span >> one missing tooth - medium span >> two missing teeth - long span >> more than two missing teeth
  •  According to the chronology of span, it is classified as: 1- Provisional bridge: to be used for varying period of time. > Temporary bridge: used temporarily for the protection of prepared teeth, till the cementation of bridge is completed. > immediate bridge: constructed before extraction of teeth and seated in position immediately after extraction at the same visit.
  •  2- Definitive bridge: to be used over an extended period of time. According to the number of teeth missing and the number of abutments, FPD is classified as: - Simple > one missing tooth, two abutments one on each side of the edentulous area. - Complex > two missing teeth, two abutments. - Complex > two missing teeth, more than two abutments. - Complex > Pier abutment
  •  According to retention, what are the types of the simple bridge? Define each type. What does immediate bridge mean? And does it use for a long period of time? Give a schematic view for the classification of Fixed Partial Denture. (just names)