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Related Concept Videos

Adjusting a Traverse01:12

Adjusting a Traverse

In the site survey of a four-sided traverse, internal angles are essential to ensure geometric accuracy. The survey revealed that the sum of the measured internal angles was 359 degrees and 48 minutes, which is 12 minutes less than the expected 360 degrees. This discrepancy signals an error likely arising from measurement inaccuracies during the fieldwork.To rectify this error, the adjustment process involved distributing the 12-minute shortfall equally across the four internal angles. By...

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The influence of prosthetic designs on peri-implant bone loss: An AO/AAP systematic review and meta-analysis; inclusion bias and the importance of evidence-based conclusions in prosthodontic research.

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Evaluating screw-retained implant prostheses in posterior jaws: A 1-5-year retrospective analysis of clinical outcomes and oral health-related quality of life.

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Reverse scan body: Complete digital workflow for double full-arch zirconia prostheses.

Panos Papaspyridakos1,2,3, Lina Castellanos2, E Armand Bedrossian4,5

  • 1Private Practice, Boston, Massachusetts, USA.

Journal of Prosthodontics : Official Journal of the American College of Prosthodontists
|August 7, 2024
PubMed
Summary
This summary is machine-generated.

This study introduces an extraoral digital scanning technique using reverse scan bodies for edentulous patients. This method simplifies digital workflows for fabricating passive-fitting implant prostheses.

Keywords:
digital workflowextra oral implant scanningfull‐arch implant rehabilitationfull‐arch zirconiafull‐arch zirconia prosthesisintraoral implant scanningreverse scan body

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Area of Science:

  • Dentistry
  • Digital Dentistry
  • Prosthodontics

Background:

  • Intraoral scanning for complete-arch implant prostheses is technique-sensitive due to the lack of fixed landmarks.
  • Merging surface geometry data for prosthesis fabrication presents challenges.
  • Extraoral techniques offer an alternative for digital implant position acquisition in edentulous patients.

Purpose of the Study:

  • To describe a simplified digital workflow for fabricating passive-fitting definitive implant prostheses.
  • To present an efficient extraoral digital scanning approach using reverse scan bodies.
  • To adapt traditional analog techniques to digital workflows.

Main Methods:

  • Utilizing an extraoral digital scanning technique on a conversion prosthesis.
  • Connecting reverse scan bodies to simulate the traditional back-pouring technique.
  • Applying the reverse scan body protocol for digital acquisition of implant positions.

Main Results:

  • The described technique simplifies the digital workflow for implant prosthesis fabrication.
  • The reverse scan body concept facilitates efficient digital data acquisition.
  • This method aids in creating passive-fitting definitive prostheses.

Conclusions:

  • Extraoral digital scanning with reverse scan bodies offers an efficient alternative for complete-arch implant cases.
  • The reverse scan body protocol simplifies digital workflows, enhancing prosthesis fabrication.
  • This technique contributes to the development of passive-fitting implant prostheses for edentulous patients.