Retention, Color Match, Marginal Adaptation and Restoration Integrity
Conditions
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
Interventions
PROCEDUREUltra-translucent multilayer zirconia
Ultra-translucent multilayer zirconia laminate veneer treatment
PROCEDURELithium disilicate
Lithium disilicate laminate veneer treatment
Sponsors
Cairo University
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Investigator, Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Age
20 Years to 40 Years
Healthy volunteers
No
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
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| 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
| Measure | Time frame | Description |
|---|---|---|
| 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 |
Other
| Measure | Time frame | Description |
|---|---|---|
| Color match | 12 months follow up period | assessment of restoration will be done for color match on the base of of modified USPHS criteria for assessment of dental restorations |
| Marginal adaptation | 12 months follow up period | assessment of restoration will be done for Marginal adaptation on the base of of modified USPHS criteria for assessment of dental restorations |
Outcome results
None listed