Clinical Performance of Onlay Restorations After Cervical Margin Relocation (CMR)

Mansoura University

Status: Active, not recruiting

Conditions: Dental Caries

Treatments: Procedure: Bioactive Ionic Resin (cervical margin relocation); Procedure: Resin Modified Glass Ionomer (cervical margin relocation); Procedure: Highly viscous glass ionomer (cervical margin relocation); Procedure: Low shrinkage Flowable Composite (cervical margin relocation)

Study type: Interventional

Funder types: Other

Identifiers

NCT06155773

9153193

Details and patient eligibility

About

The current study intends to evaluate the effect of cervical margin relocation with different restorative materials on three-year clinical performance of indirect Computer-Aided-Design (CAD)/ Computer-Aided-Manufacture (CAM) onlay restorations. This study is designed to test the null hypothesis that the three-year clinical performance of onlay restorations is significantly affected by cervical margin relocation with different restorative materials.

Enrollment: 64 patients

Sex: All

Ages: 20 to 40 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• Good general health
• Good oral hygiene
• Patient aging 20-40 y
• Patients with proximal deep carious lesion
• International caries detection and assessment system (ICDAS) 4 or 5 that diagnosed clinically and radiographically.
• Normal response to a vitality test.

Exclusion criteria

• poor general health
• poor oral hygiene
• Teeth would need direct pulp capping
• Teeth act as abutment for fixed or removable prosthesis.
• patients with excessive parafunctional habits
• Patient potentially unable to be compliant to recall visits

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Double Blind

---

64 participants in 4 patient groups

Highly viscous Glass Ionomer

Experimental group

Description:

Highly viscous glass ionomer restoration is used to elevate the subgingival cervical margin in deep class II cavities before receiving cad/cam onlay restoration

Treatment:

Procedure: Highly viscous glass ionomer (cervical margin relocation)

Low shrinkage Flowable Composite

Experimental group

Description:

Low shrinkage Flowable Composite restoration is used to elevate the subgingival cervical margin in deep class II cavities before receiving cad/cam onlay restoration

Treatment:

Procedure: Low shrinkage Flowable Composite (cervical margin relocation)

Resin Modified Glass Ionomer

Experimental group

Description:

Resin Modified Glass Ionomer restoration is used to elevate the subgingival cervical margin in deep class II cavities before receiving cad/cam onlay restoration

Treatment:

Procedure: Resin Modified Glass Ionomer (cervical margin relocation)

Bioactive Ionic Resin

Experimental group

Description:

Bioactive Ionic Resin restoration is used to elevate the subgingival cervical margin in deep class II cavities before receiving cad/cam onlay restoration

Treatment:

Procedure: Bioactive Ionic Resin (cervical margin relocation)