Wear of the Natural Enamel
Conditions
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.
Interventions
OTHERzirconia reinforced lithium silicate glass ceramic
It represent a new generation of glass ceramic material. Using an innovative manufacturing process the glass ceramic is enriched with zirconia (10% by weight) for dental CAD/CAM applications for the fabrication of inlays, onlays, crowns and anterior and posterior single tooth restorations on implant abutments.
Sponsors
Cairo University
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Outcomes Assessor)
Masking description
double blind
Eligibility
Sex/Gender
ALL
Age
20 Years to 60 Years
Healthy volunteers
Yes
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
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.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| wear of the antagonist natural enamel | from baseline till one year | loss of opposing tooth structure which will be measured by 3D Profilometer |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| 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. |
Contacts
Primary Contactesraa mohamed hany
Backup Contacthesham katamesh, professor
Outcome results
None listed