- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03443583
Immediate and Delayed Dentin Sealing Effect on Partial Crowns
Prospective Randomized Clinical Trial on the Survival and Quality of Survival of Lithium Disilicate Posterior Partial Crowns Bonded Using Immediate or Delayed Dentin Sealing a 3- Year Follow up
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Micromechanical and chemical retention of ceramic fixed prosthesis to tooth structure introduced minimal invasive preparation to dentistry. As a result, biomechanically or aesthetically compromised teeth can be restored at a lower biological price, saving sound tooth tissues. A slow but steady (mind) shift from full metal and metal-ceramic restorations that require conventional cementation and substantial tooth loss (Edelhoff en Sorensen, 2002) to less destructive partial all ceramic restorations that require adhesive cementation is seen in the clinical field.
The clinical success of ceramic restorations relies heavily on the quality of their adhesion to dentin, which remains a clinical challenge to date. Improvements in this field over the years have brought about better cements and more effective methods to condition both substrates and teeth.
Immediate Dentin Sealing (IDS) is a technique that presumably improves adhesion of ceramic fixed prosthesis to tooth structure which results in a better marginal adaptation to dentin and less postoperative sensitivity compared to conventional adhesive cementation, also referred to as Delayed Dentin Sealing (DDS).(Pashley et al, 1992; Paul en Scharer, 1997; Magne et al, 2005; Magne et al, 2007; Breschi et al, 2008; Lee en Park, 2009). The main difference between the IDS and DDS technique lies in the fact that in IDS, a thin layer of bonding resin is applied immediately after tooth preparation and prior to impression taking, whereas in DDS this layer is applied immediately before cementation of the restoration. At first glance this may appear a minor difference, but it is presumed to be of major clinical importance. The effectiveness of IDS is studied as an adjunct to conventional adhesive cementation of ceramic indirect restorations. A split mouth clinical trial comparing ceramic restorations cemented with either IDS or DDS after one year of clinical service is executed. For each patient two all ceramic indirect restorations are made. One is cemented by means of DDS (control group) and the other one is cemented by means of IDS (experimental group). Clinical evaluation is performed shortly after cementation and after 1 and 3 year(s) of clinical function.
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Patients should be over 18 years of age, in reasonable to good general health, as expressed by an ASA-score I or II (de Jong and Abraham-Inpijn, 1994).This ASA-score is already known before participation, due to regular check-ups;
- Patients should have an indication for at least two indirect ceramic restorations on vital teeth.
Exclusion Criteria:
- ASA-score III or higher;
- Hypersensitivity of the tooth which has to be restorated. This is measured before inclusion. (Is measured with a cotton pallet and cold spray which are hold to the tooth. If the tooth is painful and is doesn't relief from pain quickly the tooth is hypersensitive)
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Single Group Assignment
- Masking: Single
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Survival
Time Frame: 3 year
|
Survival of the restorations
|
3 year
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Quality of the restorations
Time Frame: 3 year
|
Criteria according to Hickel and USPHS
|
3 year
|
Collaborators and Investigators
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- NL45130
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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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