Assessment of Anterior Teeth Restored With Ultra-translucent Multilayer Zirconia vs Lithium Disilicate Laminate Veneers

Not Applicable

• Conditions: Retention, Color Match, Marginal Adaptation and Restoration Integrity
• Interventions: Procedure: Lithium disilicate; Procedure: Ultra-translucent multilayer zirconia

• Registration Number: NCT04598737
• Lead Sponsor: Cairo University

Brief Summary

The aim of the present study is to assess the clinical performance of multilayered translucent zirconia laminate veneers versus lithium disilicate laminate veneers in terms of modified USPHS criteria for assessment of dental restorations (retention, restoration integrity, color match and marginal adaptation)

Detailed Description

inferior mechanical properties of glass ceramics necessities the continuous development and modification for materials suitable for all clinical situations

multilayered translucent zirconia provides the advantages of high mechanical properties than all glass ceramic in addition to the improved translucency in the new generations.

Therefore, the purpose of the present study is to evaluate the clinical performance of newly introduced multilayered translucent zirconia as a monolithic laminate veneer in comparison with lithium disilicate laminate veneer to determine the clinical functional and structural integrity of the restoration

Study Timeline

• Status Verified: 2020-10
• Study First Submitted: 2020-10-15
• Study Start: 2020-10-18
• Study First Submitted QC: 2020-10-21
• Last Update Submitted: 2020-10-21
• Study First Posted: 2020-10-22
• Last Update Posted: 2020-10-22
• Primary Completion: 2021-10
• Study Completion: 2021-11

Recruitment & Eligibility

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

Inclusion Criteria

• sufficient sound enamel thickness
• Presence of one adjacent natural teeth that doesn't need laminate to compare shade
• age range 20 to 40 years old
• non smokers
• diastema less than 2mm
• tooth fracture not exceeding incisal one third
• normal occlusion
• vital teeth
• healthy periodontal tissues

Exclusion Criteria

• -insufficient enamel thickness
• restoration more than 40 % of tooth surface
• parafunctional habits
• deep discoloration
• sever teeth rotation
• edge to edge or deep bite
• abnormal occlusion
• bad oral hygiene

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Lithium disilicate	Lithium disilicate	Lithium disilicate laminate veneer treatment
Ultra-translucent multilayer zirconia	Ultra-translucent multilayer zirconia	Ultra-translucent multilayer zirconia laminate veneer treatment

Primary Outcome Measures

Name	Time	Method
Retention	12 months follow up period	assessment of restoration will be done for retention on the base of of modified USPHS criteria for assessment of dental restorations

Secondary Outcome Measures

Name	Time	Method
Restoration integrity	12 months follow up period	assessment of restoration will be done for restoration integrity on the base of of modified USPHS criteria for assessment of dental restorations