Abutment Analysis of Metallic Denture Frameworks in Mandibular Kenedy Class III Cases

NCT07215208 | Not Yet Recruiting DMC

• 1 other identifier: Abutment analysis CAD-CAM
• Study Type: interventional
• Target: 22
• Locations: 0 countries
• Sites: N/A

Brief Summary

This study is aimed to compare CAD/CAM (digitally fabricated) metallic partial denture frameworks to conventionally fabricated metallic partial denture frameworks in mandibular Kennedy class-III arches in terms of abutment health and occlusal analysis

Conditions

Occlusion; Prosthesis Durability

Outcome Measures

Primary Outcomes (1)

• Abutment health mobility

  Periotest, Periotest value (PTV) which ranges from -8 to +50

  3 months

Secondary Outcomes (1)

• Gingival bleeding index

  3 months

Other Outcomes (1)

• Occlusal Analysis

  3 months

Study Arms (2)

CAD/CAM metallic partial denture frameworks

EXPERIMENTAL

The digital technology makes it much easier in fabricating the prosthesis, so by the aid of this technology we can make accurate occlusal scan and jaw relation without annoying of the patient with the impression material. The software makes it much easier in designing and planning for proper established removable metallic partial denture, with one tap we can print the designed wax pattern and continue in the conventional steps of manufacturing the metallic partial denture

Other: CAD/CAM metallic partial denture frameworks

Conventional metallic partial denture frameworks

ACTIVE COMPARATOR

The conventional fabricated metallic partial dentures have been the standard method for fabricating the metallic frameworks. It is a reliable treatment option for the partially edentulous patients and the most commonly used for it is advantageous. The advantages of conventional metallic partial dentures are it considered to be more rigid even if in thin sections, has higher stiffness and strength, thanks to good thermal conductivity of metal it can conduct heat and cold, can be designed to minimize tissue coverage

Other: Conventional metallic partial denture frameworks

Interventions

CAD/CAM metallic partial denture frameworks OTHER

The CAD/CAM workflow starts with scanning of the physical model (master cast) to create a 3D virtual representation. Dental professionals then digitally analyze this virtual model and design the metallic partial denture frameworks using specialized computer software. Once the design is finalized, a wax pattern of the framework is either milled or 3D printed. Then proceeding with this wax pattern to fabricate the final metal partial denture framework, either by conventional casting process, or milling of the metallic framework

CAD/CAM metallic partial denture frameworks

Conventional metallic partial denture frameworks OTHER

The metallic partial denture frameworks have proven to be affordable and convenient treatment option for partially dentate patients for it is rigidity and durability. It can be used in thin sections and provide high strength and stiffness. However, metallic partial denture frameworks also come with several drawbacks. A significant concern for some patients is the metallic display, which can lead to poor esthetics. Other disadvantages include increased prosthesis weight, a potential metallic taste, and a tendency for plaque accumulation. Additionally, they can induce stresses on the abutment teeth

Conventional metallic partial denture frameworks

Eligibility Criteria

• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Child (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

• Patients with unilateral bounded saddles in the mandible (Kennedy class III).
• Opposing dentition is fully intact or restored.
• Sufficient inter-arch space.
• Angle's class I maxilla-mandibular relationship.

You may not qualify if:

• Periodontal affection of the abutment teeth.
• Skeletal mal-relation.
• Unmotivated patients to maintain adequate oral hygiene to follow up.
• Patients with neuromuscular and Psychiatric disorders.
• Systematic disease affecting bone and periodontal health.
• Insufficient inter-arch space.
• Patients with physical disabilities that could affect follow up.

Sponsors & Collaborators

• Cairo University: lead

MeSH Terms

Conditions

Bites and Stings; Prosthesis Failure

Condition Hierarchy (Ancestors)

Poisoning; Chemically-Induced Disorders; Wounds and Injuries; Postoperative Complications; Pathologic Processes; Pathological Conditions, Signs and Symptoms

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: TRIPLE
• Who Masked: PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
• Masking Details: Operators, participants, and statistician will be blinded.
• Purpose: TREATMENT
• Intervention Model: CROSSOVER
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: PhD degree student, Prosthetic Dentistry Department

Model Details: \- Prospective, randomized controlled, two-phase, crossover trial.

Study Record Dates

• First Submitted: October 2, 2025
• First Posted: October 10, 2025
• Study Start: October 1, 2025
• Primary Completion: January 1, 2026
• Study Completion: January 1, 2026
• Last Updated: October 10, 2025

Record last verified: 2025-09