Crowned Posterior Teeth, Endodontically Treated Teeth, Posterior Teeth, Worn Posterior Teeth
Conditions
Brief summary
In-vitro studies do not represent the actual masticatory environment and cannot simulate the intricate chewing pattern. Hence, there is a need for an in vivo study evaluating the wear potential of the newly introduced strength - color gradient multilayered zirconia IPS e.max ZirCAD Prime (5Y-TZP/3Y-TZP) and compare it to Lithium Disilicate IPS e.max CAD which has proven to have favorable wear patterns.
Detailed description
* There will be no difference in wear caused by monolithic Zirconia (5Y-TZP/3Y-TZP) IPS E-max ZirCad Prime and Lithium Disilicate IPS e.max CAD to the antagonist. * There will be no difference in the wear of the new monolithic zirconia IPS e.max ZirCAD Prime and lithium disilicate IPS e.max CAD.
Interventions
OTHERmonolithic zirconia (5Y-TZP/3-YTZ) ZirCAD Prime.
wear of the new material of monolithic zirconia (5Y-TZP/3-YTZ) ZirCAD Prime in posterior teeth
OTHERLithium Dislicate IPS e.max crown
wear of lithium disilicate IPS e.max crown in posterior teeth
Sponsors
Cairo University
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
OTHER
Masking
DOUBLE (Subject, Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Age
21 Years to 50 Years
Healthy volunteers
No
Inclusion criteria
* All subjects are required to: 1- Be aged 21-50 years old, be able to read and sign the informed consent document. 2- Psychologically and physically able to withstand conventional dental procedures. 3- Patients with mutilated posterior teeth indicated for full coverage restorations. 4- Patients with sound natural antagonists. 5- Able to attend punctually for preplanned visits and evaluation. 6- Have no active periodontal or pulpal diseases. 7- There should be no apparent loss or wear in opposing enamel.
Exclusion criteria
1. Patient with active resistant periodontal diseases. 2. Patients with parafunctional habits and bruxism. 3. Patients with poor oral hygiene, high caries risk and uncooperative patients. 3- Pregnant women. 4. Patients in the growth stage with partially erupted teeth. 5- Psychiatric problems or unrealistic expectations. 6- Lack of opposing dentition in the area of interest. 7- Restored occlusal surface opposing the planned restoration. 8- The presence of a removable or fixed orthodontic appliance.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| The amount of occlusal wear in natural antagonist enamel caused by the restorative material | 1 year | The amount of occlusal wear in natural antagonist enamel, using digital superimposition of model scans after 1 year, measured in micrometer. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| The amount of occlusal wear in the restorative material itself | 1 year | The amount of occlusal wear in the restorative material itself, using digital superimposition of model scans after 1 year, measured in micrometers. |
Countries
Egypt
Contacts
Primary ContactNoran El Sharkawi, MSc
Backup ContactRana Sherif, professor
Outcome results
None listed