Composite resin materials are the first treatment choice in direct restorations due to their good mechanical properties, excellent esthetic properties, conservative preparation, and successful clinical performance. However, resin-based composite materials in deep cavities are more likely to irritate the pulp tissue due to insufficient polymerization and residual monomer release. Therefore, glass ionomer-based restorative materials can be used more successfully in deep cavities. In addition, the hardening mechanisms of high-viscosity glass ionomer cement are the same as those of conventional glass ionomer cement, and their wear resistance, surface hardness, compression, and bending strength are increased. No clinical studies evaluate the performance of different restorative materials in deep cavities. This clinical study aims to evaluate the clinical performance of high-viscosity glass ionomer, bulk-fill composite, and conventional composite in deep cavities.
Who can participate
Age range
18 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:
* Systemically healthy patients aged 18 and over
* Patients with good oral hygiene.
* Vital teeth are to be included in the study.
* The presence of an antagonist and a contact tooth for the tooth to be restored.
* Teeth with deep caries lesions or radiographically reaching ¾ of the dentin but with a hard dentin region between the caries and the pulp according to ESE (European Society of Endodontology) criteria.
Exclusion Criteria:
* Patients with a history of bruxism and periodontal disease
* Patients under 18 years of age
* Spontaneous pain in the tooth to be restored
* Intense carious lesion reaching the entire thickness of the dentin according to ESE (European Society of Endodontology) criteria
* Observation of mechanical perforation during caries cleaning
* Patients suspected of pregnancy or pregnant
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.