MedTrace Logo

Comparison of Two Implant Prosthetic Pathways

NCT02905838 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 40

Last updated 2023-05-15

No results posted yet for this study

Summary

To assess and compare the esthetic outcome and clinical performance of anterior maxillary all ceramic implant single crowns based either on prefabricated zirconia abutment veneered with pressed ceramics or on a CAD/CAM (computer-aided design and computer-aided manufacturing) CARES® abutment veneered with hand build-up technique.

Participants will be recruited from the patient population who has previously received dental implant treatment, received a provisional restoration and met the inclusion and exclusion criteria according to the study protocol. After final impression, patients will be randomised into Group A (prefabricated anatomic abutments ): one-piece screw retained single crown using a press technique (fluorapatite glass-ceramic, e.max ZirPress) with cut-back technique or Group B (CAD/CAM CARES® abutments): one- piece screw retained single crown with a hand build-up technique (fluorapatite veneering ceramic, e.max Ceram). One week after final restoration (base line visit) the primary and secondary outcome parameters will be assessed. The patients will be followed up to 5 years after final restoration.

Conditions

  • Failure of Dental Prosthesis

Interventions

DEVICE

Anatomic e.max Abutment

Implant-supported single crown was fabricated using a prefabricated stock abutment made of yttrium oxide partially stabilized tetragonal zirconia polycrystalline (Y-TZP) (Anatomic IPS e.max Abutment, straight, color M1, Ivoclar, Liechtenstein) and pressed ceramic (fluorapatite glass-ceramic, IPS e.max ZirPress, Ivoclar, Liechtenstein) using the cut-back technique and hand veneered with a thin layer of fluorapatite veneering ceramic (fluorapatite veneering ceramic, IPS e.max Ceram, Ivoclar, Liechtenstein).

DEVICE

CAD/CAM CARES Abutment

Implant-supported single crown was fabricated using an individualized CAD/CAM abutment made of Y-TZP (CARES® Abutment, Institut Straumann AG, Basel, Switzerland) and hand build-up veneering ceramic technique (fluorapatite veneering ceramic, IPS e.max Ceram, Ivoclar, Liechtenstein). All implant-supported crowns were fabricated in the same dental laboratory by the same dental technician (Dominique Vinci, Geneva, Switzerland). The implants were placed by experienced oral surgeons in a prosthetic ideal position.

Sponsors & Collaborators

  • University of Bern

    lead OTHER

Principal Investigators

  • Julia-Gabriela Wittneben, Dr. · University of Bern

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2010-12-31
Primary Completion
2020-12-31
Completion
2021-06-30

More Related Trials

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT02905838 on ClinicalTrials.gov