Clinical Trials Logo
  1. Home
  2. Prosthesis Survival
  3. NCT04773873

Implant Retained CAD-CAM Ceramic Crowns — RCT-Scherrer  

Prosthesis Survival Clinical Trial

Official title:
Randomized Controlled Clinical Trial (RCT) of Implant-retained Monolithic Chairside-made CAD-CAM Hybrid Abutment Single Crowns

Clinical Trial Summary

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.

Clinical Trial Description

This RCT involves the University of Geneva Dental School and four private practices for which the Geneva Hospital Ethic Committee's approval is required. Patients in need for replacement of single unit posterior teeth will be recruited at the Dental School as well as in the 5 private practices based on specific selection criteria. Patients will be randomly assigned to a restorative group using a computer-generated random number table for allocation. The CAD-CAM blocs containing a screw channel for implant-retained chairside-made single-unit hybrid-abutment crowns are 1) Lithium-disilicate glass-ceramic (e.max CAD) (G1) and 2) feldspath-ceramic infiltrated by polymer (Enamic) (G2). The CAD-CAM crowns are adhesively cemented to titanium base abutments (Ti-base) and screw-retained to Titanium implants (Straumann Standard Plus) in the premolar (RN) and molar region (WN). Controls are screw-retained PFM crowns (G3). The number of crowns in each group is N=30 (15 molars and 15 premolars) which gives a total of 90 crowns for this study. Participants are recalled after 1 week-10 days after crown insertion (baseline, T0) and then yearly during 5 years (T1-T5). Digital X-Rays are taken at T0, T1, T3 and T5 with repositionable individual resin bite registrations. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT04773873
Study type Interventional
Source University of Geneva, Switzerland
Contact
Status Completed
Phase N/A
Start date January 1, 2015
Completion date December 8, 2023
View Details
See also
  Status Clinical Trial Phase
Completed NCT03041597 - Dental Implant Supported Removable Dental Prostheses N/A
Enrolling by invitation NCT05589519 - Partial Implant-supported Rehabilitation Using PEEK N/A
Recruiting NCT05649085 - Evaluation of Single-unit Implant-supported Prostheses Survival Using CoCr Prosthetic Abutments: Prospective Observational Study
Active, not recruiting NCT05589493 - Hybrid PEEK-Acrylic Resin Prostheses and the All-on-4 Concept for Full-Arch Rehabilitation - Routine Group N/A
Active, not recruiting NCT04374201 - 14y Prospective Study on Posterior Zirconia-based 3-unit FDPs
Recruiting NCT04688593 - Clinical and Functional Outcome of the MobileLink Acetabular Cup System in the Short-, Mid-, and Longterm Follow-up
Completed NCT04446078 - Hybrid Polyetheretherketone (PEEK)-Acrylic Resin Prostheses and the All-on-4 Concept for Full Arch Rehabilitation N/A
Active, not recruiting NCT05261204 - Transcatheter Aortic Valve Implantation Versus Standard Surgical Aortic Valve Operation
Active, not recruiting NCT06114069 - Prosthetic Management of All on Four Versus All on Six to Rehabilitate Completely Edentulous Maxillary Ridge Opposed by Natural Teeth N/A
Recruiting NCT02409186 - A Phase III Study of Nimotuzumab Plus Concurrent Chemoradiotherapy in Loco-regional Esophageal Squamous Cell Carcinoma Phase 3
Enrolling by invitation NCT05589545 - PEEK Prostheses in the All-on-4 Concept Using Zygomatic Implants for Full-arch Rehabilitation. N/A
Completed NCT04748458 - Long-term Outcomes of Conical Tapered Stems in Cementless Total Hip Arthroplasty Due to Congenital Hip Pathologies
Completed NCT02931903 - Lithium Disilicate Glass-ceramic Versus Hybrid Ceramic Superstructure Materials on Implant Stability N/A
Completed NCT01918124 - A Phase II Trial of Adjuvant Radiotherapy Combined With Chemotherapy for Patients With High-risk Endometrial Cancer Phase 2
Recruiting NCT04960098 - Patient-reported Outcome Measures in Patient Underwent Total Hip and Knee Arthroplasty
Not yet recruiting NCT02941575 - Patient Satisfaction and Peri-Implant Tissue Success of Hybrid Ceramic Versus E-Max Superstructures N/A
Completed NCT00374946 - A Clinical Evaluation of Wear Couples in THA N/A
Completed NCT04244929 - Multicenter Perspective Study: Clinical Evaluation of the Persona MC® With Preservation or Sacrifice of the PCL N/A
Enrolling by invitation NCT05589506 - Partial Rehabilitation Using a PEEK-acrylic Resin Removable Partial Denture N/A
Enrolling by invitation NCT05589532 - Single Tooth Implant-supported Fixed Prosthetic Rehabilitation Using PEEK. N/A