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Shade Matching of Universal Versus Conventional Nanohybrid Resin Composites in Class IV Restorations After Bleaching

Clinical Evaluation of Shade Matching and Marginal Discoloration of One Shade Universal Resin Composite Versus Conventional Nanohybrid Resin Composite in Class IV Restorations Before and After Tooth Bleaching .

Status
Recruiting
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05638373
Enrollment
32
Registered
2022-12-06
Start date
2023-09-12
Completion date
2025-10-01
Last updated
2024-08-06

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

Conditions

Anterior Teeth

Brief summary

The aim of the current study is to assess the shade matching potential of single shade universal resin composite versus conventional nanohybrid resin composite in class IV restorations after bleaching

Detailed description

The use of a dental material that can blend into the surrounding tooth structure is increasing in popularity . A new technology , smart chromatic technology , has been introduced as the shade matching composite called omnichroma . Omnichroma has the ability to match the new lighter shade of the bleached teeth unlike the conventional composite . In this study , an investigation will be done to evaluate if this new technology will help to preserve the tooth structure and be more conservative , by avoiding the removal of the old anterior restorations after bleaching

Interventions

OTHEROne shade universal composite

A resin composite with new smart chromatic technology and chameleon effect. It has the ability to match the new lighter shade of the bleached teeth unlike the conventional composite

A conventional resin composite with multiple shades

Sponsors

Cairo University
Lead SponsorOTHER

Study design

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

Eligibility

Sex/Gender
ALL
Age
18 Years to 45 Years
Healthy volunteers
No

Inclusion criteria

* Candidates must have one or more existing class IV restoration. * Cases indicated for bleaching. * Cooperative patient approving to participate in the trial.

Exclusion criteria

* Patients with severe medical conditions that might interfere with the study. * Patients with rampant caries or xerostomia. * Smoking. * Patients with history of hydrogen peroxide sensitivity , periodontal inflammation. * Lack of compliance. * Tempromandibular joint disorders. * Disabilities.

Design outcomes

Primary

MeasureTime frameDescription
Change in shade matchingBaseline, 2 days, 3, 6 and 12 monthsModified USPHS criteria with Alpha, Bravo ,Charlie and Delta scores (Categorical)

Secondary

MeasureTime frameDescription
Change in Marginal discolorationBaseline, 2 days, 3, 6 and 12 monthsModified USPHS criteria with Alpha, Bravo, Charlie and Delta scores (Categorical)
Change in surface textureBaseline, 2 days, 3, 6 and 12 monthsModified USPHS criteria with Alpha, Bravo, Charlie and Delta scores (Categorical)

Countries

Egypt

Contacts

Primary ContactNayra Halim, Msc student
nayra.halim@dentistry.cu.edu.eg+201112417351
Backup ContactAhmed Refaat, phd
ahmed.refaat@dentistry.cu.edu.eg01146464696

Outcome results

None listed

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