CompletedNot Applicable

Two-Year Clinical Performance of Self-Cured Resin Composite in Comparison to Light-Cured Bioactive Resin Composite in Restoring Occlusal Cavities of Posterior Teeth.

Egypt50 participantsStarted 2026-01-01

Plain-language summary

Introduction: Resin composite restorations are among the most commonly used materials for restoring posterior teeth due to their aesthetic and mechanical properties. Self-cured resin composites have emerged as a promising option to overcome some of the limitations of conventional light-cured composites. Aim: The aim of this study is to evaluate the effect of self-cured resin composite in restoring occlusal cavities of posterior teeth over a period of two years. The results will contribute to clarifying its efficiency and safety as a treatment option in daily clinical practice. Research Steps: Fifty affected teeth will be selected and randomly allocated into groups. Group (A): Self-cured resin composite group - self-cured resin composite will be used. Group (B): Bioactive nano-hybrid resin composite group - bioactive nano-hybrid resin composite will be used. The restorations will be evaluated after placement. Introduction: Resin composite restorations are among the most widely used materials in restorative dentistry due to their favorable aesthetic and physical properties. However, the success of these restorations largely depends on the type of material used and the technique of application. Conventional light-cured composites are the most common option, yet they may present certain limitations in cases where adequate isolation is difficult to achieve or in posterior areas of the mouth. In contrast, self-cured resin composites have emerged as a promising alternative because of their ability to polymerize chemically without the need for a light source. These materials are characterized by ease of use and the possibility of application under limited clinical conditions, making them suitable in certain clinical situations. Aim of the Study: The aim of this randomized controlled clinical trial is to evaluate the clinical performance of a newly introduced self-cured resin composite (Stela, SDI, Australia) in class I occlusal cavities of posterior teeth compared to light-cured Nano-hybrid bioactive resin composite (Beautifill II, Shofu, Japan) regarding functional properties over a follow-up of 2 years. Research Question: Does the clinical performance of self-cured resin composite restorations differ from light cured nano-hybrid bioactive resin composite in class I cavities?

Who can participate

Age range

18 Years – 50 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: * Adult patients typically between 18 to 50 years old. * Males or Females. * Co-operative patients approving the trial. * Good oral hygiene. Exclusion Criteria: * Lack of compliance. * Patients with bad oral hygiene. * Patients who are allergic to any ingredients used in the study. * Medically compromised patients with systemic complications that would alter the treatment. * Inability to give informed consent.

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Functional properties as assisted by FDI criteria for direct restorations

Timeframe: 2 years

Trial details

NCT IDNCT07480070

SponsorBritish University In Egypt

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2026-02-01

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