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

Sponsor:

Collaborators:

Information provided by (Responsible Party):

Rasha Sayed Mosallam，Cairo University

Tracking Information

First Submitted Date ^ICMJE

October 3, 2018

First Posted Date ^ICMJE

October 5, 2018

Last Update Posted Date

October 5, 2018

Actual Study Start Date ^ICMJE

November 1, 2018

Estimated Primary Completion Date

November 1, 2019 (Final data collection date for primary outcome measure)

Current Primary Outcome Measures ^ICMJE

color stability[ Time Frame: one year ]

L* a* b* values and ∆E

Original Primary Outcome Measures ^ICMJE

Same as current

Current Secondary Outcome Measures ^ICMJE

patient satisfaction[ Time Frame: one year ]
patient satisfaction through a questionnaire

Descriptive Information

Brief Title ^ICMJE

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

Official Title ^ICMJE

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

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

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 .

Study Type ^ICMJE

Interventional

Study Phase

N/A

Study Design ^ICMJE

Allocation: Randomized
Intervention Model: Parallel Assignment
Intervention Model Description:
Masking: Interventional
Masking Description:participant, outcome assessor double blind
Primary Purpose: Treatment

Condition ^ICMJE

Intervention ^ICMJE

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

Study Arms

Active Comparator: glazed IPS e.max
lithium disilicate glazed crowns that proved to have a good color stability
Experimental: polished IPS e.max
polished lithium disilicate crowns with the polishing kit

Recruitment Information

Recruitment Status ^ICMJE

Not yet recruiting

Estimated Enrollment ^ICMJE

Original Estimated Enrollment ^ICMJE

Same as current

Estimated Study Completion Date

November 1, 2019

Estimated Primary Completion Date

November 1, 2019 (Final data collection date for primary outcome measure)

Eligibility Criteria ^ICMJE

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

Sex/Gender

Sexes Eligible for Study:

All

Ages

18 Years and older (Adult, Older Adult)

Accepts Healthy Volunteers

Listed Location Countries ^ICMJE

Removed Location Countries

Administrative Information

Has Data Monitoring Committee

U.S. FDA-regulated Product

Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: No

IPD Sharing Statement

Plan to Share IPD:

Responsible Party

Rasha Sayed Mosallam，Cairo University

Study Sponsor ^ICMJE

Cairo University

Collaborators ^ICMJE

Investigators ^ICMJE

PRS Account

Cairo University

Verification Date

October 2018

^ICMJE Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP

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