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

Effect of Cervical Margin Relocation With Different Restorative Materials on Three-year Clinical Performance and In-Vitro Fracture Resistance of Indirect Hybrid Ceramic Onlay Restorations

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.

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