How to apply direct posterior composite restoration with bulk-fill dual-cure composite resin and sectional matrix/ring system.
The polymerization shrinkage of resin composites remains the main drawback of these widely used materials for the restoration of posterior teeth.
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The volumetric reduction due to polymerization generates stress within the material, at the adhesive interface, and in the tooth structure.
The physical mismatch between the shrinkage-prone restorative
material and the stiffer tooth structure may result in undesirable clinical situations, such as microleakage, marginal staining, gap formation, postoperative sensitivity, and enamel microcracks or cusp deflection.
Dr. Ross Nash gives you some tips in this helpful video.
