SurvivalNCT03452358
Survival Rate of Lithium Disilicate Crowns
An observational study of Survival and Immediate Dentin Sealing, run by University Medical Center Groningen.
Trial summary
A retrospective clinical study will be performed evaluating a large number of partial ceramic restorations (IPS e-Max press, Ivoclar, Liechtenstein) placed in general practice. Evaluation will be based on the well established Hickel criteria (Hickel et al, 2010). Read more about this study
- Who is it for?
- Any age
- Conditions the study is for
- Survival, Immediate Dentin Sealing
- What is being tested?
- Partial Ceramic Indirect restoration
- Type of treatment
- Surgery or procedure
- How many people
- 170 participants
- Where
- No sites listed yet
- Study dates
- Jan 2015to Feb 2018
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages Any age
- Child, Adult, Older adult
Study population: Patients participating in this study will be recruited from the patient population of the private dental practice 'Buijs tandartsen' in Groningen, the Netherlands.
Who may be able to join
- In order to be eligible to participate in this study, a patient must received one or more lithium disilicate restorations between 2006 and today.
Who cannot join
- No patients will be excluded from the study.
About this study
Official title: Clinical Evaluation of Partial Ceramic Posterior Restorations Cemented Using Immediate Dentin Sealing - a (#) Year Follow up From a Retrospective Study.
A retrospective clinical study will be performed evaluating a large number of partial ceramic restorations (IPS e-Max press, Ivoclar, Liechtenstein) placed in general practice. Evaluation will be based on the well established Hickel criteria (Hickel et al, 2010). Rationale: IPS-e-max press has been made available to the market since 2006. Although millions of these restorations have been placed worldwide, clinical data are available of less than 200 single restorations only, covering observation periods of 2-8 years.(Guess et al, 2009; Etman en Woolford, 2010; Gehrt et al, 2012; Esquivel-Upshaw et al, 2012).
Objective: Study the survival of lithium disilicate restorations during regular check-ups in a private dental practice.
Read the detailed description
Study the survival of lithium disilicate restorations during regular check-ups in a private dental practice. All included patients were followed-up with special emphasis on the partial restoration(s), every time they visited the dental practice for regular dental check-ups between 2015 and 2017. To assess these restorations a light photograph with a digital camera (Nikon (D7100, 60mm lens), Nikon, Amsterdam, The Netherlands) and an x-ray were taken from the partial posterior crowns and evaluated according to the modified United States Public Health Service (USPHS) criteria.
- Conditions
- Survival, Immediate Dentin Sealing
- Being tested
- Partial Ceramic Indirect restoration
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Partial Ceramic Indirect restorationProcedure or surgery
Also called Immediate Dentin Sealing
Placement of an partial ceramic indirect restoration with the use of immediate dentin sealing as an adjunct to adhesive cementation.
What is being measured
The primary outcome is the main question the study is designed to answer.
Survival rate
Measured: from 2006 to 2018
Secondary outcomes (1)
Quality of survival
according to Hickel
Measured: from 2006 to 2018
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted2 Mar 2018
- Study startJan 2015
- Primary completionFeb 2018
- Study completionFeb 2018
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for SurvivalStudies of the same condition, open and under way.
- More trials run by University Medical Center GroningenThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Cohort
- Time perspective
- Retrospective
- Enrolment
- 170 participants (actual)
Sponsor and investigators
- Lead sponsor
- University Medical Center Groningen
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Carline van den Breemer, University Medical Center Groningen
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT03452358
- Sponsor's protocol ID
- 201500391
- Status last verified
- Mar 2018
- First submitted
- 26 Feb 2018
- Last updated
- 6 Mar 2018
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 6 Mar 2018. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Clinical Evaluation of Partial Ceramic Posterior Restorations Cemented Using Immediate Dentin Sealing - a (#) Year Follow up From a Retrospective Study.
- ClinicalTrials.gov ID
- NCT03452358
- Acronym / sponsor ID
- 201500391
- Conditions
- Survival, Immediate Dentin Sealing
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 170 participants (actual)
- Lead sponsor
- University Medical Center GroningenUniversity, hospital or other
- Study start
- Jan 2015 (actual)
- Primary completion
- Feb 2018 (actual)
- Study completion
- Feb 2018 (actual)
- First posted
- 2 Mar 2018 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
A retrospective clinical study will be performed evaluating a large number of partial ceramic restorations (IPS e-Max press, Ivoclar, Liechtenstein) placed in general practice. Evaluation will be based on the well established Hickel criteria (Hickel et al, 2010). Rationale: IPS-e-max press has been made available to the market since 2006. Although millions of these restorations have been placed worldwide, clinical data are available of less than 200 single restorations only, covering observation periods of 2-8 years.(Guess et al, 2009; Etman en Woolford, 2010; Gehrt et al, 2012; Esquivel-Upshaw et al, 2012).
Objective: Study the survival of lithium disilicate restorations during regular check-ups in a private dental practice.
Detailed description
Study the survival of lithium disilicate restorations during regular check-ups in a private dental practice. All included patients were followed-up with special emphasis on the partial restoration(s), every time they visited the dental practice for regular dental check-ups between 2015 and 2017. To assess these restorations a light photograph with a digital camera (Nikon (D7100, 60mm lens), Nikon, Amsterdam, The Netherlands) and an x-ray were taken from the partial posterior crowns and evaluated according to the modified United States Public Health Service (USPHS) criteria.
Study design
- Observational model
- Cohort
- Time perspective
- Retrospective
Who may qualify
- Age groups
- Child, Adult, Older adult
- Study population
- Patients participating in this study will be recruited from the patient population of the private dental practice 'Buijs tandartsen' in Groningen, the Netherlands.
Key inclusion criteria (1 listed)
- In order to be eligible to participate in this study, a patient must received one or more lithium disilicate restorations between 2006 and today.
Key exclusion criteria (1 listed)
- No patients will be excluded from the study.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Partial Ceramic Indirect restorationAlso: Immediate Dentin SealingPlacement of an partial ceramic indirect restoration with the use of immediate dentin sealing as an adjunct to adhesive cementation. | Procedure or surgery | – |
Primary outcome
Survival rate
Time frame: from 2006 to 2018
1 secondary outcome
Quality of survival
Time frame: from 2006 to 2018
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 6 Mar 2018.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
Questions about this trial
What is this clinical trial studying?
An observational study of Survival and Immediate Dentin Sealing, run by University Medical Center Groningen.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 1 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 6 Mar 2018. Status can change between updates, so confirm with the study contact before making plans.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Survival rate (time frame: from 2006 to 2018). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 6 Mar 2018; AzTrials last refreshed its copy on 6 Nov 2026.