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Clinical Tip: Maximizing Final Impression and Dental Cast Articulation Accuracy for Kennedy Class I and II Cases

Kennedy Class I and II Cases - CE Course
Launch Course

Course Objectives (1 CE Credit)

Siamak Abai, DDS, MMedSc

For cases in which implant treatment is indicated to replace two or more adjacent teeth at the distal extension of the arch, capturing an accurate final impression and bite registration presents challenges. This can hinder the restorative process by making it difficult to properly articulate the dental casts and design the implant crowns. In this multimedia presentation, Dr. Siamak Abai demonstrates how to address these challenges by fabricating an occlusal verification jig and implant verification jig. Topics include:

  • The restorative difficulties introduced by Kennedy Class I and II cases
  • Accounting for the divergent angulation of adjacent implants during impression-taking
  • The causes of inaccurate interocclusal records
  • Creating an occlusal stop for bite registrations in Kennedy Class I and II cases
  • Clinical use of the occlusal verification jig and implant verification jig
  • How to fabricate a custom impression tray
  • Ensuring an accurate fit, bite and contacts for Kennedy Class I and II cases

Summary

The restorative obstacles presented by Kennedy Class I and II cases can be overcome by utilizing an occlusal verification jig and implant verification jig. These tools can be fabricated using materials and components that are relatively common to the offices of dentists restoring implants. By taking these extra steps, clinicians can capture an accurate bite registration and final impression, resulting in well-fitting implant crowns despite challenging circumstances.

CAUTION: When viewing the techniques, procedures, theories and materials that are presented, you must make your own decisions about specific treatment for patients and exercise personal professional judgment regarding the need for further clinical testing or education and your own clinical expertise before trying to implement new procedures.


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