Clinical Investigation on Zirconia-ceramic Three-unit Bridges With CAD-on Veneering

NCT ID: NCT02175329

Last Updated: 2020-02-12

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

60 participants

Study Classification

INTERVENTIONAL

Study Start Date

2010-01-31

Study Completion Date

2017-12-31

Brief Summary

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60 bridge frameworks are CAD/CAM manufactured from zirconia-ceramic; 30 bridges are veneered with CAD/CAM fabricated lithium disilicate ceramic, 30 bridges are manually layered. The goal is to compare clinical survival , biological or technical behaviour of the restorations.

Detailed Description

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Randomized prospective controlled clinical study with three-unit posterior bridges made of zirconia-ceramic to compare veneering with manually layering or CAD/CAM fabricated lithium disilicate ceramic veneers. The hypothesis is that there is no difference in clinical survival of the restorations and no difference in biological or technical behaviour.

Conditions

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Three-unit Posterior Bridges

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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CAD/CAM veneering

CAD/CAM manufactured e.max CAD veneers on zirconia framework

Group Type EXPERIMENTAL

CAD/CAM Veneering

Intervention Type DEVICE

CAD/CAM fabricated zirconia bridge framework is veneered with CAD/CAM fabricated lithium disilicate ceramic veneer

manually layered

Manually layered veneering on CAD/CAM fabricated zirconia bridge framework

Group Type ACTIVE_COMPARATOR

Manually layered veneering

Intervention Type DEVICE

Interventions

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CAD/CAM Veneering

CAD/CAM fabricated zirconia bridge framework is veneered with CAD/CAM fabricated lithium disilicate ceramic veneer

Intervention Type DEVICE

Manually layered veneering

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* single missing posterior tooth with two adjacent posterior teeth
* no acute conservative or paradontal treatment need except for the teeth to be treated in the study
* sufficient oral hygiene

Exclusion Criteria

* known allergies to components
* bruxism
* missing antagonist tooth
* pregnancy or lactation
* missing written consent
* patients which are not expected to be compliant
* severe systemic diseases
* untreated carious lesions
* untreated parodontitis
Minimum Eligible Age

18 Years

Maximum Eligible Age

70 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Ivoclar Vivadent AG

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Andreas Bindl, Dr.med.dent.

Role: PRINCIPAL_INVESTIGATOR

Universität Zürich

Locations

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Universität Zürich, Zentrum für Zahn-, Mund- und Kieferheilkunde

Zurich, , Switzerland

Site Status

Countries

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Switzerland

Other Identifiers

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CAD-On

Identifier Type: -

Identifier Source: org_study_id

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