NCT04773873 (RCT-Scherrer) is a NA clinical trial of PFM Crowns on gold coping cast-on in Prosthesis Survival, sponsored by Susanne Scherrer.

Who is sponsoring NCT04773873?

NCT04773873 is sponsored by Susanne Scherrer.

What drugs are being tested in NCT04773873?

Interventions in NCT04773873: PFM Crowns on gold coping cast-on, hybrid abutment lithium disilicate crown, hybrid abutment ceramic polymer infiltrated crown.

What condition does NCT04773873 study?

NCT04773873 studies Prosthesis Survival.

Is NCT04773873 still recruiting?

NCT04773873 is currently completed. Last updated 11 December 2023.

Last reviewed 2023-12-11 · How we verify

NCT04773873: RCT-Scherrer

Name: Drug Landscape Pharmaceutical Database
Creator: Drug Landscape
Published: 2026-01-01
License: https://creativecommons.org/licenses/by/4.0/

Implant Retained CAD-CAM Ceramic Crowns

Completed NA Last updated 11 December 2023

What this trial tests

NA trial testing PFM Crowns on gold coping cast-on in Prosthesis Survival in 90 participants. Completed in 8 December 2023.

Timeline

1 January 2015

Primary endpoint
8 December 2023

8 December 2023

Quick facts

Lead sponsor	Susanne Scherrer
Phase	NA
Status	Completed
Study type	INTERVENTIONAL
Allocation	randomized
Design	parallel
Masking	none
Primary purpose	treatment
Enrollment	90
Start date	1 January 2015
Primary completion	8 December 2023
Estimated completion	8 December 2023
Sites	1 location across Switzerland

Drugs / interventions tested

PFM Crowns on gold coping cast-on
hybrid abutment lithium disilicate crown
hybrid abutment ceramic polymer infiltrated crown

Conditions studied

Prosthesis Survival — all drugs for Prosthesis Survival →

Sponsor

Susanne Scherrer

Who can join

Adults 25 to 70, any sex, with Prosthesis Survival. Patients with the condition only — healthy volunteers not accepted.

Sponsor's own description

Newly available ceramic CAD-CAM blocs containing a screw channel for chairside-made crowns to be adhesively cemented to a TiBase abutment and screw-retained to an implant are appealing to the clinician, considering the time efficiency (one appointment) and overall lower costs as no dental laboratory is involved. The hypotheses are that the biological (BOP, PD, PCR, implant bone level) and mechanical outcomes (fracture, loss of retention, wear) are equivalent to implant screw-retained Porcelain-Fused-to-Metal (PFM) crowns over a 5 year observation time.This RCT will provide key information as to the cost/benefit, suitability and/or limitations of these chair-side hybrid-abutment crowns in the posterior region.

Publications & conference data

No peer-reviewed publications indexed yet for this trial. Completed trials usually publish results within 12-18 months.

Verify or expand the search:

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Verify against primary sources

ClinicalTrials.gov — authoritative US registry record
WHO ICTRP — international registry index
EU Clinical Trials Register
Sponsor press releases (Google)

Data sources for this page

Trial protocol + status: ClinicalTrials.gov NCT04773873 (US National Library of Medicine, public domain)
Drug + disease cross-links: matched in real time against Drug Landscape's normalised drug + company + condition tables
Sponsor: as reported to ClinicalTrials.gov by Susanne Scherrer
Last refreshed: 11 December 2023

Drug Landscape aggregates and links these public records for informational use only. Always verify against the primary source before clinical or regulatory decisions. Canonical URL: https://druglandscape.com/trial/NCT04773873.

Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing