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Y-TZP and In-mouth Low Thermal Degradation: A Prospective Clinical Study

Low Thermal Degradation of Monolithic Zirconia Prostheses: an up to 5-year Original Prospective Clinical Study Using ex Vivo Analyses

Status
UNKNOWN
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02150226
Enrollment
101
Registered
2014-05-29
Start date
2014-02-28
Completion date
2021-04-30
Last updated
2019-08-07

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

Conditions

Zirconia Monolithic Dental Restorations: In-mouth Behaviour, LTD and Wear

Brief summary

The objective of this work is to study in-mouth aging and LTD of monolithic zirconia restorations. Microstructural changes characteristic of LTD processes, wear, and clinical behaviour following standard parameters will be evaluated. Notably Raman spectroscopy and 3D laser surface analysis will be used, directly on the restorations, which will be removed at regular intervals.The working hypothesis is that LTD process is very slow at the scale at the lifespan of dental prostheses.

Interventions

DEVICELava plus (3M) crowns and bridges

Zirconia monolithic dental crowns and bridges evaluation

Sponsors

DMG Paris Descartes
CollaboratorOTHER
University of Liege
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Healthy volunteers
No

Inclusion criteria

* Full zirconia crowns in the posterior region (molar/premolar) * On teeth or implants * Single unit restorations cemented on natural teeth and implants (including screw-retained restorations if possible, but no internal connections) * Multi-unit restorations on implants * If nightguard: to be performed on the antagonist

Exclusion criteria

* Patients with removable prosthesis as an antagonist

Design outcomes

Primary

MeasureTime frame
in-mouth LTD of monolithic zirconia restorations on natural teeth and implantsup to 5 years

Countries

Belgium

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 13, 2026