The new posterior resins and a simplified placement technique

Background. New heavy-body (packable) composites have been developed for us e in posterior direct resin restorations. These materials are promoted as h aving better handling characteristics and higher physical properties than p revious microhybrid composites. Methods. The authors describe an incremental layering technique that takes advantage of the improved handling characteristics and proposed reduced shr inkage and greater depth of cure. Clinical Implications. When this new technique is used with one-bottle adhe sives and improved instrumentation, posterior heavy-body composites can be placed faster, easier and possibly more predictably than when medium-body r esins and previous techniques are used.