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Digital Evaluation of Accuracy for Removable Partial Denture Frameworks

NCT06412159 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 24

Last updated 2024-09-19

No results posted yet for this study

Summary

Purpose:Within subject study aim to compare the overall accuracy and fit of different components for mandibular metallic removable partial denture (RPD) frameworks fabricated by selective laser melting using combined analog-digital, and fully digital impression techniques.

Material and methods. Two RPD frameworks were fabricated for each of the 24 participants using each of the 2 techniques of the 24 participants enrolled, were of mandibular Kennedy class I, the first technique was the combined analog-digital workflow had the analog steps include: a physical impression was made using polyvinyl siloxane, stone casts were made, then the stone cast was scanned with a laboratory scanner to generate a digital cast. The 3Shape CAD software was then used to design a digital RPD, which was fabricated from a cobalt-chroumum alloy by selective laser melting. The second technique was fully digital where an intraoral digital scanner was used to make a definitive scan, which was sent to the 3Shape software for digitally designing the RPD framework and subsequent selective laser melting for fabrication. For both frameworks in the same participant, the same design was used for consistency. To assess the accuracy of fit, based on STL data analysis (intra-oral digital superimposition evaluation), a color map was constructed using non metrology software, and overall fit accuracy and the misfit (distance between each framework component and the reference intra-oral scan) were measured at rest, guiding plane and lingual plate areas.

Conditions

  • Denture
  • Partial

Interventions

OTHER

Selective laser melting framework was fabricated using completely digital workflow

completely digital work flow Conventional technique versus complete digital technique

Sponsors & Collaborators

  • Kafrelsheikh University

    lead OTHER

Study Design

Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Model
CROSSOVER

Eligibility

Min Age
50 Years
Max Age
65 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2023-01-01
Primary Completion
2023-11-01
Completion
2024-02-01

Countries

  • Egypt

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06412159 on ClinicalTrials.gov