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Intraoral vs Extraoral Cementation of Zirconia Bridges on Ti-Bases: Microstrain Evaluation

NCT07448701 · Status: NOT_YET_RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 30

Last updated 2026-03-04

No results posted yet for this study

Summary

This prospective clinical study compares two cementation techniques for implant-supported zirconia fixed partial dentures on titanium bases (Ti-bases): extraoral cementation performed on the working model and intraoral cementation performed chairside. Thirty clinical cases with two osseointegrated implants requiring a multi-unit zirconia restoration will be recruited at the UIC Dental Clinic. For each case, two restorations with identical design will be produced: one will be cemented extraorally (control) and an identical replica will be cemented intraorally (test). Micro-deformation will be assessed as peri-implant microstrain (µε) using a standardized strain-gauge setup and the same recording protocol for both techniques. The primary analysis compares microstrain between intraoral and extraoral cementation within each case; implant/prosthetic events will be recorded descriptively.

Conditions

  • Biomechanical Phenomena
  • Partial Edentulism

Interventions

PROCEDURE

Extraoral cementation on Ti-bases

Extraoral (laboratory) cementation of a three-unit zirconia bridge to Ti-bases on the working model using a standardized protocol, with strain-gauge evaluation performed prior to prosthesis delivery.

PROCEDURE

Intraoral cementation on Ti-bases

Intraoral (chairside) cementation of an identical three-unit zirconia bridge to Ti-bases following a standardized protocol. The assembly is removed and sent to the laboratory, where strain-gauge evaluation is performed approximately 1 week later (7 ± 3 days).

Sponsors & Collaborators

  • Universitat Internacional de Catalunya

    lead OTHER

Principal Investigators

  • MARTA VALLES, DDS, PhD · Universitat Internacional de Catalunya

Study Design

Allocation
NON_RANDOMIZED
Purpose
OTHER
Masking
NONE
Model
CROSSOVER

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2026-03-31
Primary Completion
2027-03-31
Completion
2027-06-30

Countries

  • Spain

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07448701 on ClinicalTrials.gov