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

Not Applicable

Recruiting

• Conditions: Anterior Teeth
• Interventions: Other: One shade universal composite; Other: Nanohybrid resin composite

• Registration Number: NCT05638373
• Lead Sponsor: Cairo University

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

Study Timeline

• Study First Submitted: 2022-11-27
• Study First Submitted QC: 2022-11-27
• Study First Posted: 2022-12-06
• Study Start: 2023-09-12
• Status Verified: 2024-08
• Last Update Submitted: 2024-08-04
• Last Update Posted: 2024-08-06
• Primary Completion: 2025-02-01
• Study Completion: 2025-10-01

Recruitment & Eligibility

• Status: RECRUITING
• Sex: All
• Target Recruitment: 32

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.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
One shade universal composite	One shade universal composite	shade matching composite
Nanohybrid resin composite	Nanohybrid resin composite	Conventional Nanohybrid resin composite

Primary Outcome Measures

Name	Time	Method
Change in shade matching	Baseline, 2 days, 3, 6 and 12 months	Modified USPHS criteria with Alpha, Bravo ,Charlie and Delta scores (Categorical)

Secondary Outcome Measures

Name	Time	Method
Change in Marginal discoloration	Baseline, 2 days, 3, 6 and 12 months	Modified USPHS criteria with Alpha, Bravo, Charlie and Delta scores (Categorical)
Change in surface texture	Baseline, 2 days, 3, 6 and 12 months	Modified USPHS criteria with Alpha, Bravo, Charlie and Delta scores (Categorical)

Trial Locations

Locations (1)

Faculty of dentistry, cairo university; 🇪🇬 Cairo, Egypt