Evaluation of Cervical Restorations Performance Using Modified Universal Adhesive

Phase 1

Active, not recruiting

• Conditions: Clinical Performance
• Interventions: Drug: Modified universal adhesive; Drug: Conventional universal adhesive

• Registration Number: NCT05509127
• Lead Sponsor: Cairo University

Brief Summary

Class V restorations are evaluated to reveal whether the use of modified universal adhesive will have a similar performance compared to conventional universal adhesive or not.

Detailed Description

The innovative Scotchbond Universal Plus Adhesive offers all the benefits of its predecessor, Single Bond Universal Adhesive as demonstrated by a 3M field evaluation comparing the performance of the two products. These benefits include:

* Compatibility with all etching techniques - total-etch, self-etch, and selective enamel etch.

* Usage with direct and indirect indications.

* Bonding to all dental surfaces without the need for separate primers or silanes

* Virtually no post-operative sensitivity.

The newly modified adhesive with its careful formulation offers:

* Radiopacity like dentin to reduce the risk of X-ray misdiagnosis and overtreatment.

* Ability to bond and seal caries-affected dentin to support minimally invasive preparation guidelines and maximize preservation of natural tooth structure.

* Adhesion to all dental substrates and all direct and indirect materials, including glass ceramics.

* Full dual- and self-cure compatibility without the need for an additional dual-cure activator bottle.

* A BPA derivative-free formulation to alleviate concerns about BPA in dental materials

* A fully aligned system with RelyX™ Universal Resin Cement, offering excellent bond strength for virtually all dual-cure resin cement indications.

As with any new material or technique, long-term clinical evaluations are needed to demonstrate the value of universal bonding agents adequately. So, the aim of this study is to evaluate the clinical performance of the modified universal adhesive, versus the conventional universal adhesive, for restoring carious class V cavities over one year and a half.

Study Timeline

• Study First Submitted: 2022-08-16
• Study First Submitted QC: 2022-08-17
• Study First Posted: 2022-08-19
• Study Start: 2023-01-01
• Primary Completion: 2024-08-15
• Status Verified: 2024-10
• Last Update Submitted: 2024-10-14
• Last Update Posted: 2024-10-16
• Study Completion: 2025-01-01

Recruitment & Eligibility

• Status: ACTIVE_NOT_RECRUITING
• Sex: All
• Target Recruitment: 50

Inclusion Criteria

• Small to moderate carious cervical lesions. (ICDAS scores 3,4)
• Upper premolar teeth.
• Good oral hygiene (mild to moderate plaque accumulation)
• Vital teeth with no signs of irreversible pulpitis.
• Presence of favorable occlusion and normal contact with adjacent teeth.

Exclusion Criteria

• Patients with systemic diseases, severe medical complications or allergic history concerning methacrylates.
• Lack of patient compliance, pregnancy, rampant caries, heavy smoking or xerostomia.
• Evidence of parafunctional habits and TMJ disorders.
• Class V lesions in molars.
• Non-carious cervical lesions.
• Deep carious defects (close to pulp, less than 1 mm distance).
• Teeth with signs and symptoms of irreversible pulpitis or pulp necrosis.
• Endodontically treated teeth.
• Tooth hypersensitivity.
• Possible prosthodontic restoration of teeth.
• Heavy occlusion and occlusal contacts or history of bruxism.
• Severe periodontal affection.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Carious cervical lesions treated with modified universal adhesive	Modified universal adhesive	Preparation of class V cavity with removal of caries and beveling of margins is done followed by total etching prior to application of modified universal adhesive. The cavity is then restored with nano-filled resin composite.
Carious cervical lesions treated with conventional universal adhesive	Conventional universal adhesive	Preparation of class V cavity with removal of caries and beveling of margins is done followed by total etching prior to application of conventional universal adhesive. The cavity is then restored with nano-filled resin composite.

Primary Outcome Measures

Name	Time	Method
Change in Marginal adaptation	Baseline, 6 months, 12 months, 18 months and 24 months.	using Modified USPHS criteria

Secondary Outcome Measures

Name	Time	Method
Marginal discoloration	Baseline, 6 months, 12 months, 18 months and 24 months.	using Modified USPHS criteria
Post-operative sensitivity	Baseline, 6 months, 12 months, 18 months and 24 months.	using Modified USPHS criteria
Retention	Baseline, 6 months, 12 months, 18 months and 24 months.	using Modified USPHS criteria
Secondary caries	Baseline, 6 months, 12 months, 18 months and 24 months.	using Modified USPHS criteria

Trial Locations

Locations (1)

Faculty of Dentistry - Cairo University; 🇪🇬 Cairo, Egypt