NCT03716817

Brief Summary

This investigation will be a clinical trial to study the performance of a new resin-based ceramic material for crowns. The material has been approved by the FDA for patient treatment. A computer technique will be used to fabricate the crowns in a single appointment without the need for a temporary crown or second appointment. The purpose of the study is to measure how well the high strength crowns function over an extended period of time.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
50

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Oct 2018

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

October 1, 2018

Completed
20 days until next milestone

First Submitted

Initial submission to the registry

October 21, 2018

Completed
2 days until next milestone

First Posted

Study publicly available on registry

October 23, 2018

Completed
5.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 18, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 18, 2024

Completed
1.9 years until next milestone

Results Posted

Study results publicly available

April 28, 2026

Completed
Last Updated

April 28, 2026

Status Verified

March 1, 2026

Enrollment Period

5.7 years

First QC Date

October 21, 2018

Results QC Date

March 17, 2026

Last Update Submit

April 7, 2026

Conditions

Keywords

CrownCeramicCAD/CAM

Outcome Measures

Primary Outcomes (1)

  • Crown Failure

    Crown failure includes fracture of the crown or loss of the crown requiring placement of a new crown at any time between delivery and five years.

    from delivery of the crown up to 5 years

Secondary Outcomes (3)

  • Crown Loss of Retention

    from delivery of the crown up to 5 years

  • Tooth Sensitivity

    from delivery of the crown up to 5 years

  • Margin Staining

    from delivery of the crown up to 5 years

Study Arms (1)

Tetric CAD Crown

EXPERIMENTAL

Tetri CAD crowns will hand polished and cemented with a dual cured resin cement (Variolink Esthetic by Ivoclar Vivadent).

Device: Tetric CAD

Interventions

Resilient ceramic crowns (Tetric CAD by Ivoclar Vivadent) are placed using an adhesive bonding process including a total etch process with a universal adhesive (Adhese by Ivoclar Vivadent) and dual cured resin cement (Variolink Esthetic by Ivoclar Vivadent).

Tetric CAD Crown

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • must have at least one carious lesion or defective restoration or fractured tooth in a molar or premolar
  • reason for restoration should extend more than one-half the intercuspal width of the tooth requiring a full crown restoration
  • Teeth to be vital and asymptomatic prior to treatment
  • No more than two restorations will be placed per patient. If a patient presents with more than two acceptable teeth for the study, molar teeth will be included prior to premolar teeth.

You may not qualify if:

  • Devital or sensitive teeth
  • Teeth with prior endodontic treatment of any kind
  • Teeth with a history of direct or indirect pulp capping procedures
  • Patients with significant untreated dental disease to include periodontitis and rampant caries
  • Pregnant or lactating women
  • Patients with a history of allergies to any of the materials to be used in the study
  • Patients unable to return for the recall appointments

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Michigan School of Dentistry

Ann Arbor, Michigan, 48109, United States

Location

MeSH Terms

Conditions

Tooth Fractures

Condition Hierarchy (Ancestors)

Tooth InjuriesTooth DiseasesStomatognathic DiseasesWounds and Injuries

Limitations and Caveats

No limitations or caveats to be reported

Results Point of Contact

Title
Dr. Dennis Fasbinder
Organization
University of Michigan

Study Officials

  • Dennis Fasbinder, DDS

    University of Michigan

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Clinica Professor

Study Record Dates

First Submitted

October 21, 2018

First Posted

October 23, 2018

Study Start

October 1, 2018

Primary Completion

June 18, 2024

Study Completion

June 18, 2024

Last Updated

April 28, 2026

Results First Posted

April 28, 2026

Record last verified: 2026-03

Data Sharing

IPD Sharing
Will not share

Locations