EPA 4C: Partial Edentulous Fixed Partial Denture - Bridge
| Partial Edentulous Fixed Partial Denture - Bridge |
Meets Expectations of the Graduate
|
Progressing
|
Below Expectations
|
Critical Error
|
|---|---|---|---|---|
| Isolation and Tissue Management | No damage and/or optimal isolation | Poor isolation and/or tissue damage requiring finishing/polishing | Poor isolation and/or tissue damage that requires a major recontour or restoration | |
| Preparation | ||||
| External Outline | Margin location ideal (0.5mm above the FGM), margins regular in form | Margin location slightly over- or under- extended (±0.5mm), margins slightly irregular | Margin location decidedly over- or under extended (> 0.5 mm, < 1mm), margins decidedly irregular and recognized, minor damage to adjacent tooth and/or soft tissues | Margin location grossly over or under extended (>1mm), margin decidedly irregular and not recognized, severe damage to adjacent tooth and/or soft tissue |
| Internal Form | Preparation extends into tooth as necessary for the chosen restorative material | These areas are slightly over- or under- reduced (± 0.5mm), Occlusal - Axial Walls - Cusp Bevel | These areas are decidedly over (0.5-0.8mm) or under- reduced, Occlusal - Axial Walls - Cusp Bevel | These areas are grossly over (>0.8mm) or under reduced, Occlusal - Axial Walls - Cusp Bevel |
| Taper | Taper ideal (5–10° TOC) | Taper slightly excessive (10–15° TOC) | Taper inadequate < 5°, taper decidedly excessive (15–20° TOC), minor undercuts |
Taper grossly excessive (>20° TOC) Gross undercuts (margin less than 0.5 mm after blackout) |
| Finish of Walls and Margins, Definition | Walls and margins smooth, Smooth/planar occlusal anatomy, chamfer width and form ideal | Preparation slightly rough, chamfer not ideal, but acceptable | Preparation decidedly rough or ill-defined and recognized, chamfer ill-defined or nonfunctional and recognized, debris remaining on the preparation | Preparation decidedly rough or ill-defined and not recognized, margin ill-defined or nonfunctional, lip or J margin |
| Restoration | ||||
| Surface | Surface uniformly smooth, replicates normal textures | Surface slightly rough, pitted, or lacking finish | Surface decidedly rough or pitted | Deeply pitted or grooved |
| Marginal Integrity | Margin is smooth, margin is not short, long, or open | Margins are slightly: over-extended, under- extended, slightly over/under contoured | Margins are decidedly: over-extended under-extended | Margin open, gross over finish, gross over- extension |
| Occlusal Anatomy and Functions | Cusp planes, grooves, and marginal ridges continuous with existing tooth form, occlusion restored | Canine guidance not maintained, anatomy lacks definition | Premature occlusal contacts, balancing or non-functional contacts exist, decidedly over contoured, excessive depth of anatomy | Restoration fractured, missing, gross hyperocclusion, no other teeth in contact, occlusal contact not existent |
| Axial Contour and Proximal Contact | Axial contours continuous with existing tooth form, proximal embrasures and contact restored | Slightly over- or under- contoured | Decidedly over-or under contoured, outside normal, physiologic/anatomic range, soft tissue impingement | Grossly over- or under contoured, proximal contact visually open |
| Common Path of Draw for FPD (bridge factor) | Common path of draw exists | Common path of draw does not exist without modifying one or both preparations | ||