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Related Experiment Videos

[A new tricortical implant].

Z Laster1, A Weisberg, S Gershonovitch

  • 1Dept. of Oral and Maxillofacial Surgery, Poriah Hospital, Tveria.

Refu'At Ha-Peh Veha-Shinayim (1993)
|October 1, 2003
PubMed
Summary

The novel Excalibur implant offers immediate loading in posterior maxilla cases with minimal bone, avoiding sinus lifts. Its unique bicortical screw design enhances stability and reduces stress, simplifying complex dental implant procedures.

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Area of Science:

  • Dental Implantology
  • Biomaterials Engineering
  • Surgical Innovation

Context:

  • Alveolar ridge resorption in the posterior maxilla presents challenges for dental implant placement.
  • Traditional methods often require extensive bone augmentation or sinus lift procedures.
  • Immediate loading protocols demand high implant stability.

Purpose:

  • Introduce the Excalibur implant system for posterior maxillary rehabilitation with limited bone height (≤8 mm).
  • Describe the implant's unique bicortical screw stabilization mechanism.
  • Evaluate the implant's stability, stress distribution, and suitability for immediate loading.

Summary:

  • The Excalibur implant features an apical bicortical screw engaging buccal and palatal cortices, providing three-point cortical bone support.
  • This design enhances primary stability, allowing for immediate functional loading.
  • Finite element analysis demonstrated reduced stress on the implant neck compared to conventional implants.
  • Clinical cases showcase successful immediate prosthetic rehabilitation in the posterior maxilla.

Impact:

  • Offers a less invasive alternative to bone grafting and sinus lifts for posterior maxillary implants.
  • Facilitates immediate loading, potentially shortening treatment timelines.
  • Enhances implant survival rates through improved biomechanical stability and reduced stress concentration.

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