- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03036566
Lithium Disilicate (CAD/CAM) Fixed Partial Dentures (FPD) Clinical Study
March 8, 2023 updated by: Dennis J. Fasbinder, DDS, University of Michigan
Clinical Evaluation of Chairside Computer Assisted Design/Computer Assisted Machining (CAD/CAM) Lithium Disilicate Fixed Partial Dentures (FPD)
This investigation will be a clinical trial to study the performance of a high strength ceramic material for bridges to replace missing teeth.
The ceramic material has been approved by the FDA for patient treatment.
A computer technique will be used to make the bridges.
The bridges will be cemented using an adhesive resin cement (MultiLink Automix/Ivoclar).
The bridges are planned be evaluated for clinical performance at 6 months, 1 year, 2 years, 3 years, and if funding permits, 4 years, and 5 years.
The purpose of the study is to measure how well the high strength bridges function over an extended period of time.
Study Overview
Status
Terminated
Conditions
Intervention / Treatment
Detailed Description
The study will be composed of 30 bridges placed in adult patients that have been identified as requiring replacement of a single tooth.
All the bridges will be made from the same high strength ceramic material (emaxCAD/Ivoclar) using a computer to make the entire bridge.
All the crowns will be cemented using the most current marketed version of the manufacturer's adhesive resin cement (MultiLink Automix/Ivoclar).
At each recall appointment an evaluation of the bridge will be completed as well as clinical photographs, an intraoral digital scan, and impression of the bridge.
The purpose of the study is to measure how well the high strength bridges function over an extended period of time.
Study Type
Interventional
Enrollment (Actual)
30
Phase
- Not Applicable
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
-
-
Michigan
-
Ann Arbor, Michigan, United States, 48109
- University of Michigan
-
-
Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
18 years and older (Adult, Older Adult)
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Description
Inclusion Criteria:
- missing one anterior or premolar tooth that is appropriate for replacement with a bridge. The second premolar tooth will be the most distal tooth acceptable as a pontic for inclusion in the study.
- healthy periodontal status for the adjacent abutment teeth with 1:1 crown:root ratio
- abutment teeth must be asymptomatic prior to treatment
- Endodontically treated teeth will be acceptable for abutments as long as nonmetallic cores can be placed to retain the FPD since the lithium disilicate will be bonded to the abutments.
- no more than one bridge will be placed per patient. If a patient presents with more than one missing teeth acceptable for the study, premolar teeth will be included prior to anterior teeth. Each bridge will be three units and include only one missing tooth.
Exclusion Criteria:
- sensitive abutment teeth
- teeth with a history of direct or indirect pulp capping procedures
- patients with significant untreated dental disease to include periodontitis and caries
- pregnant or lactating women
- patients with allergies to any material in the study
- patients unable to return for recall appointments
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Bridge
Three unit high strength ceramic (lithium disilicate/emaxCAD by Ivoclar) bridges replacing a single tooth.
|
Three unit high strength ceramic bridges replacing a single tooth.
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Bridge Failure
Time Frame: from delivery of the bridge up to 5 years
|
Bridge failure includes fracture of the bridge or loss of the bridge requiring placement of a new bridge at any time between delivery and five years.
|
from delivery of the bridge up to 5 years
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Bridge Loss of Retention
Time Frame: from delivery of the bridge up to 5 years
|
Loss of retention is measured as detachment of the bridge from the teeth without fracture of the bridge requiring recementation of the bridge.
|
from delivery of the bridge up to 5 years
|
Tooth Sensitivity
Time Frame: from delivery of the bridge up to 5 years
|
Tooth Sensitivity is evaluated as either "0" if the subject reports that there is NO sensitivity for either tooth with the study bridge, or "1" if the subject reports that there IS tooth sensitivity to hot/cold or biting pressure for either tooth supporting the bridge.
The better outcome is to have NO tooth sensitivity.
|
from delivery of the bridge up to 5 years
|
Margin Staining
Time Frame: from delivery of the bridge up to 5 years
|
Margin Staining is evaluated as either "0" if there is NO staining at the crown margin where it meets the tooth for either tooth supporting the bridge, or "1" if there IS staining at the crown margin where it meets the tooth for either tooth supporting the bridge.
The better outcome is to have NO margin staining.
|
from delivery of the bridge up to 5 years
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Collaborators
Investigators
- Principal Investigator: Dennis J Fasbinder, DDS, University of Michigan
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start
March 1, 2014
Primary Completion (Actual)
March 5, 2020
Study Completion (Actual)
March 5, 2020
Study Registration Dates
First Submitted
January 26, 2017
First Submitted That Met QC Criteria
January 26, 2017
First Posted (Estimate)
January 30, 2017
Study Record Updates
Last Update Posted (Actual)
April 5, 2023
Last Update Submitted That Met QC Criteria
March 8, 2023
Last Verified
March 1, 2023
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Congenital Abnormalities
- Stomatognathic Diseases
- Periodontal Diseases
- Mouth Diseases
- Tooth Diseases
- Stomatognathic System Abnormalities
- Tooth Abnormalities
- Tooth Loss
- Anodontia
- Physiological Effects of Drugs
- Molecular Mechanisms of Pharmacological Action
- Central Nervous System Depressants
- Enzyme Inhibitors
- Tranquilizing Agents
- Psychotropic Drugs
- Antidepressive Agents
- Antimanic Agents
- Lithium Carbonate
Other Study ID Numbers
- HUM00081086
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
NO
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
No
Studies a U.S. FDA-regulated device product
Yes
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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