NCT06406582

Brief Summary

This study aims to evaluate the clinical performance of the zirconia laminate veneer, a minimally invasive prosthetic restoration

Trial Health

57
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
50

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Sep 2023

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

September 25, 2023

Completed
7 months until next milestone

First Submitted

Initial submission to the registry

May 3, 2024

Completed
6 days until next milestone

First Posted

Study publicly available on registry

May 9, 2024

Completed
1.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2025

Completed
Last Updated

February 13, 2025

Status Verified

May 1, 2024

Enrollment Period

2.3 years

First QC Date

May 3, 2024

Last Update Submit

February 11, 2025

Conditions

Keywords

ceramic laminate veneerszirconialithium disilicatecomputer-aided manufacturing

Outcome Measures

Primary Outcomes (4)

  • Marginal and internal fit

    Measurement of marginal and internal fit in micrometers with silicone replica method

    Before veneer adhesion

  • Gingival health

    Assessment of gingival index

    2 weeks, 6 months, 12 months

  • Periodontal pocket

    Measurement of periodontal pocket depth in millimeters

    2 weeks, 6 months, 12 months

  • Evaluation criteria based on the modified United States Public Health Standard

    Shade match, contour, fracture, loss of retention, hypersensitivity

    2 weeks, 6 months, 12 months

Study Arms (2)

Zirconia laminate veneer

EXPERIMENTAL

Intervention: Single-tooth restoration using zirconia ceramic laminate veneers. Procedure: Tooth preparation following standard protocols for laminate veneer placement. Fabrication of zirconia laminate veneers. Cementation of zirconia laminate veneers with appropriate bonding protocol. Follow-Up: after 2 weeks, 6 months, and 12 months

Device: Zirconia laminate veneer

Lithium Disilicate laminate veneer

ACTIVE COMPARATOR

Intervention: Single-tooth restoration using lithium disilicate ceramic laminate veneers. Procedure: Tooth preparation following standard protocols for laminate veneer placement. Fabrication of lithium disilicate laminate veneers. Cementation of lithium disilicate laminate veneers with appropriate bonding protocol. Follow-Up: after 2 weeks, 6 months, and 12 months

Device: Lithium Disilicate laminate veneer

Interventions

Zirconia veneers are milled with computer-aided manufacturing technology from multilayered zirconia discs with shade matched with adjacent teeth. After sintering, veneer surfaces are treated with a hydrofluoric acid-nitric acid mixture. Next, veneers are cut back if necessary to provide space for characterization. Veneers are bonded with a light-cured veneer adhesive system (Relyx Veneer LC, 3M, USA).

Zirconia laminate veneer

Lithium Disilicate veneers are milled with computer-aided manufacturing technology from lithium disilicate blocks with shade matched with adjacent teeth. After sintering, veneer surfaces are treated with hydrofluoric acid. Next, veneers are cut back if necessary to provide space for characterization. Veneers are bonded with a light-cured veneer adhesive system (Relyx Veneer LC, 3M, USA).

Lithium Disilicate laminate veneer

Eligibility Criteria

Age18 Years - 90 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Spaced tooth
  • Discolored tooth
  • Malformed tooth
  • Root canal-treated tooth
  • Chipped tooth
  • Mildly crowded tooth

You may not qualify if:

  • Tooth bruxism
  • Inadequate enamel for bonding
  • Large restoration exists
  • Bad oral habits harming restoration

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

High Technical Center of Dentistry, School of Dentistry

Hanoi, Hanoi, 10000, Vietnam

RECRUITING

MeSH Terms

Conditions

Tooth AvulsionTooth, NonvitalTooth FracturesTooth InjuriesTooth AbnormalitiesCracked Tooth SyndromeMalocclusion

Condition Hierarchy (Ancestors)

Tooth DiseasesStomatognathic DiseasesWounds and InjuriesDental Pulp DiseasesStomatognathic System AbnormalitiesCongenital AbnormalitiesCongenital, Hereditary, and Neonatal Diseases and Abnormalities

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, OUTCOMES ASSESSOR
Masking Details
Double-blind. Both participants and the outcomes assessor are kept unaware of which ceramic laminate veneer material (Zirconia or Lithium Disilicate) the participants are receiving
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Zirconia Group (Intervention): Participants receive zirconia laminate veneers. Lithium Disilicate Group (Control): Participants receive lithium disilicate laminate veneers. Lithium disilicate is a standard ceramic material for laminate veneers.
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

May 3, 2024

First Posted

May 9, 2024

Study Start

September 25, 2023

Primary Completion

December 31, 2025

Study Completion

December 31, 2025

Last Updated

February 13, 2025

Record last verified: 2024-05

Data Sharing

IPD Sharing
Will not share

Locations