Conservative Versus Conventional Restorative Approach for Endodontically Treated Posterior Teeth
Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age20-50
SponsorMoataz Mostafa Anwar
About this trial
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.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Patients 20-50 years of age
Root canal treated posterior teeth
Good C/R ratio
Good quality root canal treatment (adequate working length, absence of post operative complications or pain and adequate follow up period)
Disqualifiers
Improper root canal treatment
Post operative complications.
Cracked teeth
Parafunctional habits (bruxism)
Trial design
Design model
Parallel
Treatments tested in this trial
Fiber reinforced composite core and an overlay
Procedure/SurgeryThis 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
Procedure/SurgeryThis 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.
Treatment groups
50 Participants
are divided into 2 treatment groupsGroup A: Fiber reinforced composite core and lithium disilicate overlayActive comparator 1 intervention
Group B: Fiber post with composite core build up and lithium disilicate full coverage crownOther 1 intervention
Trial outcomes
Primary outcomes
1
clinical evaluation of tooth integrity
Clinical evaluation of tooth integrity will be measured according to the modified USPHS Criteria having scores of either Alpha, Bravo or Charlie. This will be repeated during the time frame of the Study.
Time frame
6 monthsSecondary outcomes
1
Patient satisfaction
This outcome will be measured through handing the participants a questionnaire addressing the function, color and overall quality and acceptance of the final restorations.
Time frame
6 monthsSponsors and contacts
Click on the lead sponsor to view all of their trials.
Moataz Mostafa Anwar
Lead sponsor
Cairo University
Sponsor institution
Source ClinicalTrials.gov