Evaluation of Antagonist Wear Behavior and Patient Satisfaction of Zirconia Reinforced Lithium Silicate Glass When Compared to Monolithic Zirconia

Not Applicable

• Conditions: Wear of the Natural Enamel
• Interventions: Other: zirconia reinforced lithium silicate glass ceramic

• Registration Number: NCT03697018
• Lead Sponsor: Cairo University

Brief Summary

evaluation of wear behavior and patient satisfaction of monolithic zirconia and zirconia reinforced glass crowns after follow-up periods 0,3,6,12 months.

Detailed Description

two groups of patients will be selected according to special inclusion criteria n=13 in each group total of 26. each group will receive one of the crowns used in this study either ( monolithic zirconia or zirconia reinforced lithium silicate glass) after crown delivery wear and patient satisfaction will be recorded at 0,3,6,12 moths follow-up periods.

Study Timeline

• Status Verified: 2018-10
• Study Start: 2018-10
• Study First Submitted: 2018-10-02
• Study First Submitted QC: 2018-10-03
• Study First Posted: 2018-10-05
• Last Update Submitted: 2018-10-05
• Last Update Posted: 2018-10-09
• Primary Completion: 2019-10
• Study Completion: 2019-12

Recruitment & Eligibility

• Status: UNKNOWN
• Sex: All
• Target Recruitment: 26

Inclusion Criteria

1. Patient age range from 20-60 to be able to read and write in order to sign the informed consent document.
2. Patients physically and psychologically able to tolerate conventional restorative procedures.
3. Patients with no active periodontal and or pulpal diseases, having teeth with good restorations.
4. Patients with root canal treated teeth requiring full coverage restorations.
5. Patients indicated for full coverage (e.g. moderate to severe discoloration, coronal fracture, malposed or malformed teeth).
6. Patients willing to return for follow-up examinations and assessments

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Exclusion Criteria

1. Patients in the growth stage with partially erupted teeth.
2. Patient with poor oral hygiene.
3. Patients with psychiatric problems or unrealistic expectations
4. Patient with no opposite occluding dentition in the area intended for restoration.
5. Patient suffering from Para functional habits.

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Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
monolithic zirconia	zirconia reinforced lithium silicate glass ceramic	Zirconia or zirconium dioxide (ZrO2) is a highly attractive ceramic material in prosthodontics due to its excellent mechanical properties. It is widely used to build prosthetic devices.
zirconia reinforced lithium silicate glass ceramic	zirconia reinforced lithium silicate glass ceramic	It represent a new generation of glass ceramic material, enriched with zirconia (10% by weight), the material offers natural esthetics with successful outcome.

Primary Outcome Measures

Name	Time	Method
wear of the antagonist natural enamel	from baseline till one year	loss of opposing tooth structure which will be measured by 3D Profilometer

Secondary Outcome Measures

Name	Time	Method
patient satisfaction	from baseline till one year	visual analogue scale (VAS): scale range from 0-10 for describing the intensity of pain the patient suffering. 0: no pain, 5: moderate pain, 10: unbearable pain.