Bulk-fill resin-based composite restorative materials: a review

Area of Science:

• Dentistry
• Dental Materials Science

Background:

• Resin-based composites (RBCs) are increasingly preferred for posterior tooth restorations due to aesthetic demands and concerns over mercury-based amalgams.
• The Minamata Convention promotes phasing out dental amalgam, further driving the adoption of RBCs in dental practices.
• Bulk-fill RBCs have emerged to streamline the placement of large posterior restorations by allowing deeper increments (4-10 mm).

Purpose of the Study:

• To review the properties and handling characteristics of available bulk-fill RBC materials.
• To provide guidance on optimal placement techniques for bulk-fill RBCs in posterior restorations.

Main Methods:

• Literature review of current bulk-fill RBC materials.
• Analysis of material properties and handling characteristics.
• Evaluation of placement techniques for efficiency and reduced sensitivity.

Main Results:

• Bulk-fill RBCs offer potential for reduced chair time and technique sensitivity in posterior restorations.
• Various bulk-fill RBCs are available, differing in properties and recommended placement depths.
• Optimal technique selection is crucial for successful bulk-fill RBC placement.

Conclusions:

• Bulk-fill RBCs represent a significant advancement in posterior restorative dentistry.
• Understanding material properties and employing appropriate techniques are key to maximizing the benefits of bulk-fill RBCs.
• The use of bulk-fill RBCs is expected to increase, simplifying restorative procedures.