Direct Composite Resin Restorations in Posterior Teeth
Guilherme Carpena Lopes, DDS, MS, PhD; Gustavo Mussi Stefan Oliveira; Brazil.
Direct adhesive composite resin restorations are being used extensively. A proper understanding of the technique and its indications has contributed to the widespread use of this restorative approach. Recent industrial developments brought novel technologies to dentistry including the introduction of nanofillers to the restorative procedures. This article reviews some features of this new type of composite resin, discusses its advantages over other materials, and presents an application technique for restoration of posterior teeth through a clinical case report.
Direct composite resin restorations are routinely used as a metal-free alternative for posterior restorations because they are low cost, relatively simple, and result in optimal levels of clinical success if the procedure is followed correctly.1,2 The main advantage of this procedure is preservation of tooth structure, which supports the modern concept of a conservative approach to restorative dentistry.3 Also, the development of effective dentin adhesive systems,4 the knowledge that is available to achieve better results in adhesion to hard tissue, and the increasing interest of patients to receive almost imperceptible restorations contributed to the widespread use of esthetic restorations in posterior teeth.5 A better understanding of the procedure and the comprehensive literature has forced composite resins in posterior teeth to evolve. For example, it is well known that several hybrid and microhybrid composites have low values of occlusal wear.6-10 However, to accomplish predictable restorations, it is important to examine aspects of the patient’s occlusion before surgery (eg, occlusal contacts, type of restoration of the opposing dentition, presence of wear facets, and position of the tooth within the arch).11 This way, direct composite resins can still be considered an alternative for posterior restorations for small- to medium-sized cavities.12-14
This article discusses the characteristics of a nanofilled restorative material. A direct restorative technique for posterior teeth is also presented with a clinical case report.
