Manually Versus Digitally Fabricated Removable Partial Dentures

NCT ID: NCT01191073

Last Updated: 2021-12-01

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

50 participants

Study Classification

INTERVENTIONAL

Study Start Date

2011-06-30

Study Completion Date

2015-12-31

Brief Summary

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In the clinical trial, the Computer Aided Design/Computer Aided Manufacturing (CAD/CAM) fabricated removable partial dentures (RPD's) are evaluated on casts and clinically compared with a traditional fabricated RPD for 50 consecutive patients.

During 5 years the patients are in a follow-up program in order to judge long-term stability, loss of retention, fractures, … of both groups of dentures.

Detailed Description

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The classic removable partial denture (RPD) is a denture fabricated in CrCo using the "lost wax" technique. This hand-made way of working makes the final result vulnerable, not always predictable and not reproducible.

Computer Aided Design/Computer Aided Manufacturing (CAD/CAM) techniques have been introduced in dentistry, particularly to fabricate crowns and bridges (fixed partial dentures). There is little research in the field of removable partial framework fabrication. This may be in part be attributed to the lack of suitable dedicated software.

In the technical part of the study, existing software and hardware is adjusted to maximize the automation in the application of computer-aided technologies to surveying of digital casts and pattern design and the subsequent production of sacrificial patterns using removable partial (RP) technologies.

In the clinical trial the CAD/CAM fabricated RPD's are evaluated on casts and clinically and compared with a traditional fabricated RPD for 50 consecutive patients. For every patient, two RPDs are made in the same material (CrCo).The clinical parameters (fit, stability, retention, support, friction) are double blind evaluated by two dentists. At the end of the treatment, the patient can choose one of them.

Both RPDs are fabricated in the same time frame for the fabrication of the "classic" RPD. There are for the patient no extra sessions scheduled.

During 5 years the patients are in a follow-up program in order to judge long-term stability, loss of retention, fractures, … of both groups of dentures.

Hypothesis1: CAD/CAM fabricated RPD's can meet the clinical standards for RPD's.

Hypothesis 2: Dentists do not observe a difference between the classic and CAD/CAM fabricated RPD.

Hypothesis 3: Patients do not see/feel any difference between the classic and CAD/CAM fabricated RPD.

Conditions

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Partially Edentulous Patients

Keywords

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edentulous

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Investigators

Study Groups

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CAD/CAM fabricated dentures

group receiving Computer-Aided Design/Computer-Aided Manufacturing (CAD/CAM)fabricated removable partial dentures (double blind)

Group Type EXPERIMENTAL

CAD/CAM fabricated RPD's

Intervention Type DEVICE

group receiving Computer-Aided Design/Computer-Aided Manufacturing (CAD/CAM)fabricated removable partial dentures (double blind)

traditional fabricated dentures

group receiving traditional fabricated dentures (double blind)

Group Type ACTIVE_COMPARATOR

traditional fabricated RPD's

Intervention Type DEVICE

group receiving traditional fabricated dentures (double blind)

Interventions

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CAD/CAM fabricated RPD's

group receiving Computer-Aided Design/Computer-Aided Manufacturing (CAD/CAM)fabricated removable partial dentures (double blind)

Intervention Type DEVICE

traditional fabricated RPD's

group receiving traditional fabricated dentures (double blind)

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* patients in need of a classic removable partial denture (RPD)
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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University Ghent

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Lieve Van Zeghbroeck, MD, PhD

Role: PRINCIPAL_INVESTIGATOR

University Ghent

Locations

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University Hospital Ghent

Ghent, , Belgium

Site Status

Countries

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Belgium

Other Identifiers

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2009/655

Identifier Type: -

Identifier Source: org_study_id