Bulk-Fill Composite Restorations: Clinical Evaluation

Starting soon · Not applicable

Conditions studied: Composite Resins, Dental Caries Class II

In brief

This randomized controlled clinical study aims to evaluate the clinical performance of five different bulk-fill composite materials representing distinct technological approaches according to the World Dental Federation (FDI) criteria. The materials include a thermoviscous bulk-fill composite applied with preheating, a sonic-activated bulk-fill composite, a flowable bulk-fill composite, an ORMOCER-based bulk-fill composite, and a conventional bulk-fill composite. Restorations will be clinically assessed at baseline, 1 month, 6 months, and 12 months for esthetic, functional, and biological outcomes.

Key facts

Study ID

NCT07518537

Run by

Ataturk University

People needed

70

Starts

2026-05-20

Expected to finish

2027-07-20

Last updated by the study team

2026-04-08

Who can join

Age: 18 and older, up to 65. Sex: any. Healthy volunteers: accepted.

You may qualify if…

• Patients aged 18 years and older
• Patients in good general health (systemically healthy)
• Patients with good oral hygiene
• Patients with good periodontal health
• Presence of at least one posterior tooth requiring restoration
• Teeth must be vital and asymptomatic
• Teeth must have proximal contact with adjacent teeth on both mesial and distal surfaces
• Teeth must be in functional occlusion with an antagonist tooth
• Presence of at least one carious lesion not extending deeper than two-thirds of dentin, with a clinical ICDAS code ≤ 3
• Absence of periapical pathology confirmed by radiographic evaluation
• Patients who voluntarily agree to participate and provide written informed consent

You may not qualify if…

• Presence of any systemic disease
• Poor oral hygiene
• Presence of active or severe periodontal disease
• Teeth with previous restorations or endodontic treatment
• Non-vital (devitalized) or symptomatic teeth
• Patients who are pregnant or breastfeeding
• Patients undergoing active orthodontic treatment
• Presence of parafunctional habits (e.g., bruxism) or xerostomia
• Current tobacco use or history of heavy smoking
• Patients unwilling or unable to attend follow-up visits

Where it is running

• Atatürk University Faculty of Dentistry — Erzurum, Turkey (Türkiye)

Full record on ClinicalTrials.gov

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