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Clinical Assessment of Color Stability and Patient Satisfaction for Polished Versus Glazed Lithium Disilicate Glass Ceramic Restorations and Patient Satisfaction

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ClinicalTrials.gov Identifier: NCT03696641
Recruitment Status : Unknown
Verified October 2018 by Rasha Sayed Mosallam, Cairo University.
Recruitment status was:  Not yet recruiting
First Posted : October 5, 2018
Last Update Posted : October 5, 2018
Sponsor:
Information provided by (Responsible Party):
Rasha Sayed Mosallam, Cairo University

Brief Summary:
Dental overglaze is consist of colorless glass powder and applied to the fired crown surface to provide a glossy surface,Adjustment procedure break the production of the glaze layer through a natural glaze or overglaze process and create a rough surface, glazing or polishing after adjustment procedures is important to enhance the appearance of the restoration

Condition or disease Intervention/treatment Phase
Color Change of Lithium Disilicate Crowns Other: glazed lithium disilicate crowns Other: polished lithium disilicate crowns Not Applicable

Detailed Description:

Dental overglaze is consist of colorless glass powder and applied to the fired crown surface to provide a glossy surface. Natural glaze is a vitrified layer that is formed on the surface of the porcelain containing a glass phase when the porcelain is heated to a glazing temperature for a specific time, Adjustment procedure break the production of the glaze layer through a natural glaze or overglaze process and create a rough surface, The color of porcelain restorations is affected by surface roughness because rough surface reflects light irregularly and less than a glazed surface . Therefore, glazing or polishing after adjustment procedures is important to enhance the appearance of the restoration .

Although glazed surfaces appeared whiter, the CIE L* value measured with the specular component excluded (SCE) geometry was lower than that of polished surfaces (28).Several reports have investigated different polishing techniques that support the use of polishing as an alternative for glazing of ceramic restorations .

Polishing can reduce chair time, eliminates laboratory procedures, infection control may be obtained . Polishing is also important for the porcelain surface for esthetic so several different techniques have been described for repolishing porcelain surfaces in the mouth .

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Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 20 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single (Participant)
Masking Description: participant, outcome assessor double blind
Primary Purpose: Treatment
Official Title: Clinical Assessment of Color Stability and Patient Satisfaction for Polished Versus Glazed Lithium Disilicate Glass Ceramic Restorations and Patient Satisfaction
Estimated Study Start Date : November 1, 2018
Estimated Primary Completion Date : November 1, 2019
Estimated Study Completion Date : November 1, 2019

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Eye Wear

Arm Intervention/treatment
Active Comparator: glazed IPS e.max
lithium disilicate glazed crowns that proved to have a good color stability
Other: glazed lithium disilicate crowns
glazing of IPS e.max crowns
Other Name: glazed IPS e.max

Other: polished lithium disilicate crowns
polishing of IPS e.max crowns
Other Name: polished IPS e.max

Experimental: polished IPS e.max
polished lithium disilicate crowns with the polishing kit
Other: glazed lithium disilicate crowns
glazing of IPS e.max crowns
Other Name: glazed IPS e.max

Other: polished lithium disilicate crowns
polishing of IPS e.max crowns
Other Name: polished IPS e.max




Primary Outcome Measures :
  1. color stability [ Time Frame: one year ]
    L* a* b* values and ∆E


Secondary Outcome Measures :
  1. patient satisfaction [ Time Frame: one year ]
    patient satisfaction through a questionnaire



Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years to 60 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • All subjects are required to be:

    1. From 18-50 years old, be able to read and sign the informed consent document.
    2. Physically and psychologically able to tolerate conventional restorative procedures
    3. have no active periodontal or pulpal diseases, have teeth with good restorations
    4. Willing to return for follow-up examinations and evaluation

Exclusion Criteria:

  • 1. Patients in the growth stage with partially erupted teeth 2. Patients with poor oral hygiene and motivation 3. Pregnant women's 4. Psychiatric problems or unrealistic expectations

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT03696641


Contacts
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Contact: rasha sayed MOSALLAM, MDS 01004222871 rashamosallam@yahoo.com
Contact: Hesham katamish, professor 01222102001

Sponsors and Collaborators
Cairo University
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Responsible Party: Rasha Sayed Mosallam, Assistant lecturer- fixed prosthodontics department, Cairo University
ClinicalTrials.gov Identifier: NCT03696641    
Other Study ID Numbers: CEBD-CU-2018-09-25
First Posted: October 5, 2018    Key Record Dates
Last Update Posted: October 5, 2018
Last Verified: October 2018
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: No

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Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: No
Additional relevant MeSH terms:
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Lithium Carbonate
Antidepressive Agents
Psychotropic Drugs
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action
Antimanic Agents
Tranquilizing Agents
Central Nervous System Depressants
Physiological Effects of Drugs