Shade Matching and Patient Satisfaction of Yttria Stabilized Multilayered Zirconia and Lithium Disilicate Restorations: a Randomized Controlled Clinical Trial
Overview
- Phase
- Not Applicable
- Intervention
- Not specified
- Conditions
- Mutilated Teeth
- Sponsor
- Cairo University
- Enrollment
- 22
- Primary Endpoint
- Color difference
- Status
- Not yet recruiting
- Last Updated
- last year
Overview
Brief Summary
The aim of the study is to determine whether Yttria stabilized multilayered zirconia restorations will differ from lithium disilicate restorations in shade matching and patient satisfaction in patients requiring full coverage restorations.
Detailed Description
Steps in short: Single tooth in the esthetic zone requiring full coverage crown is prepared to receive an all-ceramic crown, The restorations will be divided into two groups: I: Teeth receiving restorations fabricated from Lithium disilicate II: Teeth receiving restorations fabricated from yttria stabilized multilayered zirconia. Shade will be measured using intraoral spectrophotometer and evaluated. The colour difference (ΔE) will be calculated for each sample using the following equation: ΔE =\[(ΔL) ²+(Δa) ² + (Δb) ²\] ½, ΔE (perceptibility threshold) will be evaluated for each group. Participant timeline the patient will be treated in visits designated as follows: Visit 1: Preoperative records, face-to-face adherence reminder session, clinical, radiographic for examination, intraoral photographs and primary impression (Alginate impression) diagnostic cast construction. Visit 2: teeth preparation and secondary impression using addition silicone rubber base material and temporary restoration. Visit 3: placement and permanent cementation of the final restoration using resin cement.
Investigators
Yasmin Mohamed
Principal Investigator
Cairo University
Eligibility Criteria
Inclusion Criteria
- Not provided
Exclusion Criteria
- •Patients in the growth stage with partially erupted teeth.
- •Patients with poor oral hygiene and motivation.
- •Patients with psychiatric problems or unrealistic expectations (patient that has phobia from dental treatments or needle bunch).
- •Patients suffer from parafunctional habits.
Outcomes
Primary Outcomes
Color difference
Time Frame: immediate after cementation
By Intraoral Spectrophotometer, color difference between the restoration and the adjacent or contralateral natural tooth will be measured by the unit (ΔE), (ΔE) will be measured for each sample.
Secondary Outcomes
- Patient satisfaction(immediate after cementation)