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Conservative Versus Conventional Restorative Approach for Endodontically Treated Posterior Teeth
Sponsor: Moataz Mostafa Anwar
Summary
This study compares two methods of restoring posterior teeth after root canal treatment. Traditionally, dentists use fiber posts and full coverage crowns, but this requires removing more tooth structure, which can weaken teeth further. A newer, more conservative option is the overlay, which preserves more of the natural tooth. While overlays appear promising, evidence is still limited, particularly for posterior teeth. The trial, conducted at Cairo University, will involve fifty patients aged 20-50 with properly root canal treated posterior teeth. Participants will be randomly divided into two groups: one receiving a fiber-reinforced composite with a lithium disilicate overlay (conservative method), and the other receiving a fiber post, composite core, and full coverage lithium disilicate crown (conventional method). The primary outcome will be tooth integrity after six months, evaluated with standardized criteria. Secondary outcomes include margin quality, discoloration, secondary decay, color matching, and patient satisfaction. Patients will be blinded to the treatment they receive, and data will be analyzed using appropriate statistical methods.
Official title: Clinical Evaluation of the Conservative Versus Conventional Restorative Approach for Endodontically Treated Posterior Teeth: A Randomized Clinical Trial
Key Details
Gender
All
Age Range
20 Years - 50 Years
Study Type
INTERVENTIONAL
Enrollment
50
Start Date
2025-09-20
Completion Date
2027-06
Last Updated
2026-10-06
Healthy Volunteers
No
Interventions
Fiber reinforced composite core and an overlay
This intervention implements a restorative approach that combines the mechanical support of a fiber-reinforced composite (FRC) core with the esthetic and durable properties of a lithium disilicate overlay. The FRC core provides internal reinforcement, distributing stresses within the tooth and enhancing fracture resistance, while the lithium disilicate overlay offers high strength, wear resistance, and excellent optical qualities.
Fiber post with composite core build up and lithium disilicate full coverage crown
This combines the intraradicular retention of a fiber post with a composite core build-up, providing internal support and reinforcement for compromised teeth. The restoration is completed with a lithium disilicate full coverage crown, offering high strength, durability, and excellent esthetics.
Locations (1)
Faculty of Dentistry, Cairo University
Cairo, Manial, Egypt