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Completed

NCT Number: NCT05899712

Digital Versus Conventional Altered Cast Techniques For Constructing Mandibular Distal Extension Removable Partial Dentures Using Digitally Fabricated Frameworks: Alveolar Bone Height Changes

This clinical study compares between digital and conventional altered cast techniques using digitally constructed frameworks in removable partial dentures' construction regarding their effect on bone height changes around abutment teeth and in residual ridge.

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Key information

Conditions

Denture, Partial, Removable

Age range

50 year–60 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Mansoura University

Al Mansurah, Dakahlyia, 35111, Egypt

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • All patients having completely edentulous maxilla and class I Kennedy mandible.
  • Sufficient (not less than 15 mm) restorative space must be available (from the mucosa covering the crest of the residual ridge to proposed occlusal plane). This will be detected by a tentative jaw relation.
  • All patients are of angel's class I maxillo-mandibular relationships
  • Abutment teeth must meet certain requirements :

A. Abutment teeth should be healthy with good periodontal and bone support. B. should not show advanced destructions. C. should not show a pronounced degree of mobility or advanced gingival recession.

D. Crown Root Ratio for an abutment is 1:2

Exclusion criteria

  • Sever undercuts or concavities on the buccal or lingual sides of the ridge.
  • Systemic diseases that may affect bone changes such as diabetes and osteoporosis.
  • History of radiotherapy in the head and neck region.
  • Crown Root Ratio for an abutment is 1:1.

Treatment and study plan

Removable Partial Denture Construction

Other

Construction of class I Removable partial denture by digital workflow

Primary outcomes

  1. Alveolar Bone Height Changes

    Time frame: one year

    Alveolar bone height changes of abutment teeth and residual ridge.

Sponsors and collaborators

Lead sponsor

Mansoura University

Other

Registry information

Official study title

Digital Versus Conventional Altered Cast Techniques For Constructing Mandibular Distal Extension Removable Partial Dentures Using Digitally Fabricated Frameworks: A Clinical Comparative Parallel Study of Alveolar Bone Height Changes

Important dates

Study start
2023
Primary completion
2025
Study completion
2025
First posted
Jun 12, 2023
Registry last updated
Jun 18, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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