- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03686267
Evaluation of the Aesthetic Outcome of Lithium Disilicate (e.Max) All Ceramic Crowns on Titanium Implant Abutments in the Aesthetic Zone After Different Color Masking Approaches
Evaluation of the Esthetic Outcome of Lithium Disilicate (e.Max) All Ceramic Crowns on Titanium Implant Abutments in the Esthetic Zone After Different Color Masking Approaches; a Randomized Clinical Trial
Study Overview
Status
Conditions
Detailed Description
Clinical resemblance is one the of main factors that preclude the success of any restoration. The use of conventional titanium implant abutment and ceramic restoration succeeded to prevail until now. New ceramic and polymer derivatives have been introduced such as hybrid ceramics, PEEK and PEKK. However, the low mechanical properties and the ease of breakage still limited them to certain clinical situations. Hybrid fixture-abutment combinations such as hybrid abutments and hybrid crowns proved to be highly efficient in the literature. But the technique sensitivity and the urge of high clinical and laboratory skills are obstacles that must be taken into consideration. This is the reason that finding esthetic modification of the conventional techniques seems reasonable. Masking the color of the underlying abutment appears to be a simple and easily achievable solution for having a highly esthetic implant supported prosthesis.
The importance of peri-implant soft tissues, whether esthetically or biologically, has been emphasized in literature. (4) Furthermore, achieving the desired esthetic outcome depends on simultaneously matching the proper esthetic criteria of the tooth and its supporting structures. (5) Esthetic failures in implant dentistry can be categorized as pink-tissue failures and white-tissue failures. (6) Pink esthetics include color, texture and level of peri-implant tissues (7), while white esthetics include color, shape and characterization of crown. (3) The mode of fabrication also influences the performance of the materials, where the use of press technology facilitates the construction of implant supported crowns, offering precision of fit, durability and esthetic materials application. (11)
Study Type
Enrollment (Anticipated)
Phase
- Not Applicable
Contacts and Locations
Study Contact
- Name: Karim A Osman, Msc
- Phone Number: 01006247666
- Email: karimawadallah@dentistry.cu.edu.eg
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- 1. Above 18 years old 2. Literate, capable of reading and signing the informed consent document 3. Healthy, Free from or with controlled systemic disease 4. With acceptable oral health to support implant restorations 5. With good bone quality and quantity 6. Cooperative, accepting follow up and maintenance sessions 7. Having missing tooth in esthetic zone
Exclusion Criteria:
- 1. Under 18 years old 2. Illiterate, unable of comprehending or signing the informed consent document 3. Unhealthy with uncontrolled systemic disease (e.g. Diabetes or hypertension) 4. Pregnancy 5. With unfavorable oral state that might affect implant procedure and restoration 6. Uncooperative, not willing to return for follow up visits
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Other
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: intervention (I1)
Lithium disilicate crowns over titanium abutments covered by a layer of opaque porcelain
|
masking metallic color of titanium abutments by opaque porcelain
|
Experimental: Intervention (I2)
Lithium disilicate crowns over titanium abutments covered by lithium disilicate (high opacity) coping
|
masking metallic color of titanium abutments using lithium disilicate copings
Other Names:
|
Active Comparator: Lithium disilicate crowns over uncovered titanium abutments
Lithium disilicate crowns over uncovered titanium abutments directly without masking
|
color masking methods are avoided in this arm
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Pink esthetics and White esthetics
Time Frame: six months
|
using numerical score (0-10) to evaluate the aesthetics of soft and hard dental tissues
|
six months
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Color measurements
Time Frame: six months
|
using Spectrophotometer to evaluate color in terms of CIE L* a* b* values
|
six months
|
Collaborators and Investigators
Sponsor
Study record dates
Study Major Dates
Study Start (Anticipated)
Primary Completion (Anticipated)
Study Completion (Anticipated)
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
- CEBD-CU-2018-09-26
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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