One Year Clinical Evaluation of Shade Matching and Patient Satisfaction of New Gradient Technology Monolithic Zirconia (5Y-TZP\3Y-TZP) Compared to Lithium Disilicate Crowns in Dental Esthetic Zone

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

NA

Total Enrollment

30 participants

Study Classification

INTERVENTIONAL

Study Start Date

2021-03-01

Study Completion Date

2022-06-01

Brief Summary

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Although zirconia is widely used for fabrication of restorations, the 3Y-TZP zirconia where limited for posterior region for its high strength and bad esthetic. While the 5Y-TZP zirconia is limited for the anterior region due to its good esthetic and low strength. For that reason, the introduction of the new gradient technology zirconia (5Y-TZP\\3Y-TZP) (IPS e.max Zircad Prime) has offered a solution to solve this problem be combining the esthetic of 5Y-TZP and the high strength of 3Y-TZP. The aim of the present study is to evaluate shade matching to natural tooth and patient satisfaction of the new gradient technology zirconia (5Y-TZP\\3Y-TZP) and lithium disilicate ceramic crowns.

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Detailed Description

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Restorative dentistry is a mix of science and art. The success of restorative dentistry is determined on the basis of functional and esthetic results. Closely matching natural teeth with an artificial restoration can be one of the most challenging procedures in restorative dentistry. Natural teeth vary greatly in color and shape.The color of a ceramic restoration is affected by the shade of the ceramic material, its thickness, and, the color of the underlying material. The restoration's color is influenced by ceramic firing temperature, the color of the prepared tooth, translucency and thickness of veneering porcelain.

The rational of this study is newly introduced gradient technology zirconia (5Y-TZP\\3Y-TZP) (IPS e.max Zircad Prime) with improved optical properties to solve the drawbacks of esthetic properties of zirconia.

Null hypothesis of the study will be:

* There would be no difference in shade matching of the new gradient technology zirconia (5Y-TZP\\3Y-TZP) and lithium disilicate ceramic crowns used in the esthetic zone.
* There would be no difference in patient satisfaction of new gradient technology zirconia (5Y-TZP\\3Y-TZP) and lithium disilicate ceramic crowns at baseline, 3, 6, 9, 12 months used in the esthetic zone.

Conditions

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Decayed Teeth Malposed Teeth Endodontically Treated Teeth Teeth Restored With Large Filling Restorations Single Anterior Crowns Single Premolars Crowns

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Outcome Assessors

Study Groups

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natural tooth

Group Type ACTIVE_COMPARATOR

natural tooth

Intervention Type OTHER

natural tooth is composed of enamel. Enamel is on the surface of every tooth and it has a natural hue of white. However, the underlying dentin layer has a slightly yellowish color. This yellowish hue shows through the enamel in almost everyone

lithium disilicate (IPS e-max) ceramic crown

monolithic lithium disilicate (IPS e-max) ceramic crown for crowns in esthetic zone

Group Type EXPERIMENTAL

lithium disilicate (IPS e-max) ceramic crown

Intervention Type OTHER

monolithic lithium disilicate ceramic crown

New gradient technology zirconia (5Y-TZP\ 3Y-TZP) IPS e.max ZirCad Prime ceramic crown

Group Type EXPERIMENTAL

New gradient technology zirconia (5Y-TZP\ 3Y-TZP) IPS e.max ZirCad Prime ceramic crown

Intervention Type OTHER

conjunction with the two zirconium oxide raw materials 3Y-TZP and 5Y-TZP is responsible for producing a continuous, seamless progression of the shade and translucency within the material

Interventions

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lithium disilicate (IPS e-max) ceramic crown

monolithic lithium disilicate ceramic crown

Intervention Type OTHER

New gradient technology zirconia (5Y-TZP\ 3Y-TZP) IPS e.max ZirCad Prime ceramic crown

conjunction with the two zirconium oxide raw materials 3Y-TZP and 5Y-TZP is responsible for producing a continuous, seamless progression of the shade and translucency within the material

Intervention Type OTHER

natural tooth

natural tooth is composed of enamel. Enamel is on the surface of every tooth and it has a natural hue of white. However, the underlying dentin layer has a slightly yellowish color. This yellowish hue shows through the enamel in almost everyone

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

1. From 21-50 years old, be able to read and sign the informed consent document.
2. Have no active periodontal or pulpal diseases, have teeth with good restorations.
3. Psychologically and physically able to withstand conventional dental procedures.
4. Patient with thick gingival biotype.
5. Patients with teeth problems indicated for single all ceramic restoration in esthetic zone

1. Badly decayed teeth.
2. Teeth restored with large filling restorations.
3. Endodontically treated teeth.
4. Malformed teeth.
5. Malposed teeth (Tilted, over-erupted, rotated, etc.).
6. Spacing between teeth in esthetic zone.
6. Able to return for follow-up examinations and evaluation.

Exclusion Criteria

1. Patient less than 21 or more than 50 years.
2. Patient with active resistant periodontal diseases.
3. Patients with poor oral hygiene and uncooperative patients.
4. Pregnant women.
5. Patients in the growth stage with partially erupted teeth.
6. Psychiatric problems or unrealistic expectations.
7. Patient with periodontal problems.
8. Patients with malocclusion or parafunctional habits.

Minimum Eligible Age

21 Years

Maximum Eligible Age

50 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No