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A Clinical Trial of the Impact of Speed and Conventional Sintering on Ultra-thin, Highly Translucent, Multilayered Zirconia Laminate Restorations

Effect of Speed Sintering on Translucency and Microstructure of High Versus Low Translucent Zirconia Veneers: a Randomized Clinical Trial

Status
UNKNOWN
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05751616
Enrollment
30
Registered
2023-03-02
Start date
2023-02-01
Completion date
2023-12-30
Last updated
2023-03-02

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Dental Veneers

Brief summary

A Minimally invasive esthetic restorative approach with the advancement of highly translucent multilayered monolithic zirconia ceramic can provide minimal thickness that affords high strength and esthetics without the need for layering porcelain. The effect of sintering conditions on yttria-partially stabilized zirconia is essential for the long-term success of such restorations. The study aims to evaluate the clinical performance of speed and conventional sintering on ultra-thin, highly translucent, multilayered zirconia laminate restorations with minimum invasive tooth preparation.

Interventions

OTHERLaminate veneers with speed sintering

Zirconia specimens will be sintered using speed sintering cycle in a conventional furnace according to the manufacturer instructions.

OTHERLaminate veneers with conventional sintering

Zirconia specimens will be sintered using conventional sintering cycle in a conventional furnace according to the manufacturer instructions.

Sponsors

Hams Hamed Abdelrahman
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to 40 Years
Healthy volunteers
No

Inclusion criteria

* patients able to understand and sign the informed consent form. * physically and psychologically able to undergo conventional restorative procedures. * Good oral hygiene with no signs of periapical pathology or periodontal disease. (periodontal screening index 0-1). * Slight malposition. * Teeth with spacing. * Teeth with discoloration. * Patient having natural teeth as opposing dentition

Exclusion criteria

* Insufficient surface enamel (60%). * Abutments with subgingival restorations or root caries. * Parafunctional habits. * Lack of opposite occluding dentition in the area intended for restoration. * mandibular prognathism and maxillary retrognathism

Design outcomes

Primary

MeasureTime frameDescription
Change in clinical performanceBaseline, 3 months, 6 months, 9 months, 12 monthsPatients will be recalled every 3 months for one year follow up. The clinical evaluation and color measurement will be based on the modified California Dental Association (CDA)/Ryge criteria of evaluation as shown Examiners will evaluate the zirconia Veneers for the following: 1. Color match. 2. Zirconia surface. 3. Marginal discoloration. 4. Marginal integrity. 5. Clinical evaluation of the completed restorations will be performed using a double-blind assessment method

Countries

Egypt

Contacts

Primary ContactMahinour A El Moniem, Msc
Dr.Mahinour_Ahmed@hotmail.com01060080088

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026