Shade Matching and Patient Satisfaction of Yttria Stabilized Multilayered Zirconia and Lithium Disilicate Restorations

N/ANot Yet RecruitingNCT06539546

Cairo University22 enrolled

Overview

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.

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.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

DOUBLE

Enrollment

Conditions

Mutilated Teeth Endodontically Treated Teeth

Interventions

Yttria stabilized multilayered (YML) zirconia restorationsOTHER

Yttria stabilized multilayered zirconia restorations were claimed to have high strength and esthetics at the same time but no clinical studies were conducted yet to prove its high esthetic properties

Lithium disilicate restorationsOTHER

Lithium disilicate reinforced glass ceramics are considered a gold standard for monolithic esthetic restorations.

Eligibility

Sex: ALLMin age: 20 YearsMax age: 60 Years

Medical Language ↔ Plain English

Inclusion criteria: 1. Age range of the patients from 20-60 years old; able to read and sign the informed consent document, illiterate patient will be avoided. 2. Patients able physically and psychologically to tolerate conventional restorative procedures. 3. Patients with no active periodontal or pulpal diseases, having teeth with good restorations. 4. Patients with teeth problems indicated for full coverage restoration (coronal fracture where partial coverage would lack retention, malposed or malformed teeth). 5. Patients with root canal treated teeth requiring full coverage restorations. 6. Patients willing to return for follow-up examinations and evaluation. Exclusion Criteria: 1. Patients in the growth stage with partially erupted teeth. 2. Patients with poor oral hygiene and motivation. 3. Patients with psychiatric problems or unrealistic expectations (patient that has phobia from dental treatments or needle bunch). 4. Patients suffer from parafunctional habits.

Outcomes

Primary Outcomes

Color difference

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.

Time frame: immediate after cementation

Secondary Outcomes

Patient satisfaction

By Visual Analogue Scale, with score range from 1 to 10 , where 1 is the worst (lowest satisfaction) and 10 is the best (highest satisfaction).

Time frame: immediate after cementation

Central Contacts

Yasmin Mohamed ElFiky

CONTACT

1000298446 Yasmin_mohamed@dentistry.cu.edu.eg

Data from ClinicalTrials.gov

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